2020-04-25 16:19:08 +03:00
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/* SPDX-License-Identifier: GPL-2.0 */
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2012-11-29 08:28:09 +04:00
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/*
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
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* fs/f2fs/segment.h
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*
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* Copyright (c) 2012 Samsung Electronics Co., Ltd.
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* http://www.samsung.com/
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*/
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2013-04-29 11:58:39 +04:00
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#include <linux/blkdev.h>
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2015-05-23 00:13:32 +03:00
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#include <linux/backing-dev.h>
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2013-04-29 11:58:39 +04:00
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
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/* constant macro */
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#define NULL_SEGNO ((unsigned int)(~0))
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2013-03-31 08:26:03 +04:00
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#define NULL_SECNO ((unsigned int)(~0))
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
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2014-03-19 09:17:21 +04:00
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#define DEF_RECLAIM_PREFREE_SEGMENTS 5 /* 5% over total segments */
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2016-07-14 04:23:35 +03:00
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#define DEF_MAX_RECLAIM_PREFREE_SEGMENTS 4096 /* 8GB in maximum */
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2013-10-24 08:31:34 +04:00
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2016-12-06 00:56:04 +03:00
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#define F2FS_MIN_SEGMENTS 9 /* SB + 2 (CP + SIT + NAT) + SSA + MAIN */
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2013-04-06 09:44:32 +04:00
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/* L: Logical segment # in volume, R: Relative segment # in main area */
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2017-04-09 02:11:36 +03:00
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#define GET_L2R_SEGNO(free_i, segno) ((segno) - (free_i)->start_segno)
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#define GET_R2L_SEGNO(free_i, segno) ((segno) + (free_i)->start_segno)
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
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2017-04-09 02:11:36 +03:00
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#define IS_DATASEG(t) ((t) <= CURSEG_COLD_DATA)
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#define IS_NODESEG(t) ((t) >= CURSEG_HOT_NODE)
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
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2017-05-10 21:18:25 +03:00
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#define IS_HOT(t) ((t) == CURSEG_HOT_NODE || (t) == CURSEG_HOT_DATA)
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#define IS_WARM(t) ((t) == CURSEG_WARM_NODE || (t) == CURSEG_WARM_DATA)
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#define IS_COLD(t) ((t) == CURSEG_COLD_NODE || (t) == CURSEG_COLD_DATA)
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2013-03-31 07:30:04 +04:00
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#define IS_CURSEG(sbi, seg) \
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2017-04-09 02:11:36 +03:00
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(((seg) == CURSEG_I(sbi, CURSEG_HOT_DATA)->segno) || \
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((seg) == CURSEG_I(sbi, CURSEG_WARM_DATA)->segno) || \
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((seg) == CURSEG_I(sbi, CURSEG_COLD_DATA)->segno) || \
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((seg) == CURSEG_I(sbi, CURSEG_HOT_NODE)->segno) || \
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((seg) == CURSEG_I(sbi, CURSEG_WARM_NODE)->segno) || \
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((seg) == CURSEG_I(sbi, CURSEG_COLD_NODE)->segno))
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
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#define IS_CURSEC(sbi, secno) \
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2017-04-09 02:11:36 +03:00
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(((secno) == CURSEG_I(sbi, CURSEG_HOT_DATA)->segno / \
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(sbi)->segs_per_sec) || \
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((secno) == CURSEG_I(sbi, CURSEG_WARM_DATA)->segno / \
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(sbi)->segs_per_sec) || \
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((secno) == CURSEG_I(sbi, CURSEG_COLD_DATA)->segno / \
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(sbi)->segs_per_sec) || \
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((secno) == CURSEG_I(sbi, CURSEG_HOT_NODE)->segno / \
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(sbi)->segs_per_sec) || \
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((secno) == CURSEG_I(sbi, CURSEG_WARM_NODE)->segno / \
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(sbi)->segs_per_sec) || \
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((secno) == CURSEG_I(sbi, CURSEG_COLD_NODE)->segno / \
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(sbi)->segs_per_sec)) \
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
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2018-03-08 11:29:13 +03:00
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#define MAIN_BLKADDR(sbi) \
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(SM_I(sbi) ? SM_I(sbi)->main_blkaddr : \
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le32_to_cpu(F2FS_RAW_SUPER(sbi)->main_blkaddr))
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#define SEG0_BLKADDR(sbi) \
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(SM_I(sbi) ? SM_I(sbi)->seg0_blkaddr : \
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le32_to_cpu(F2FS_RAW_SUPER(sbi)->segment0_blkaddr))
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2014-09-23 22:23:01 +04:00
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#define MAIN_SEGS(sbi) (SM_I(sbi)->main_segments)
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2017-04-09 02:11:36 +03:00
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#define MAIN_SECS(sbi) ((sbi)->total_sections)
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2014-09-23 22:23:01 +04:00
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2018-03-08 11:29:13 +03:00
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#define TOTAL_SEGS(sbi) \
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(SM_I(sbi) ? SM_I(sbi)->segment_count : \
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le32_to_cpu(F2FS_RAW_SUPER(sbi)->segment_count))
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2017-04-09 02:11:36 +03:00
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#define TOTAL_BLKS(sbi) (TOTAL_SEGS(sbi) << (sbi)->log_blocks_per_seg)
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2014-09-23 22:23:01 +04:00
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#define MAX_BLKADDR(sbi) (SEG0_BLKADDR(sbi) + TOTAL_BLKS(sbi))
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2017-04-09 02:11:36 +03:00
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#define SEGMENT_SIZE(sbi) (1ULL << ((sbi)->log_blocksize + \
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(sbi)->log_blocks_per_seg))
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2014-09-23 22:23:01 +04:00
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#define START_BLOCK(sbi, segno) (SEG0_BLKADDR(sbi) + \
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2017-04-09 02:11:36 +03:00
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(GET_R2L_SEGNO(FREE_I(sbi), segno) << (sbi)->log_blocks_per_seg))
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2014-09-23 22:23:01 +04:00
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
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#define NEXT_FREE_BLKADDR(sbi, curseg) \
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2017-04-09 02:11:36 +03:00
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(START_BLOCK(sbi, (curseg)->segno) + (curseg)->next_blkoff)
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
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2014-09-23 22:23:01 +04:00
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#define GET_SEGOFF_FROM_SEG0(sbi, blk_addr) ((blk_addr) - SEG0_BLKADDR(sbi))
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
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#define GET_SEGNO_FROM_SEG0(sbi, blk_addr) \
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2017-04-09 02:11:36 +03:00
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(GET_SEGOFF_FROM_SEG0(sbi, blk_addr) >> (sbi)->log_blocks_per_seg)
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2014-02-04 08:01:10 +04:00
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#define GET_BLKOFF_FROM_SEG0(sbi, blk_addr) \
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2017-04-09 02:11:36 +03:00
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(GET_SEGOFF_FROM_SEG0(sbi, blk_addr) & ((sbi)->blocks_per_seg - 1))
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2014-02-04 08:01:10 +04:00
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
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#define GET_SEGNO(sbi, blk_addr) \
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f2fs: introduce DATA_GENERIC_ENHANCE
Previously, f2fs_is_valid_blkaddr(, blkaddr, DATA_GENERIC) will check
whether @blkaddr locates in main area or not.
That check is weak, since the block address in range of main area can
point to the address which is not valid in segment info table, and we
can not detect such condition, we may suffer worse corruption as system
continues running.
So this patch introduce DATA_GENERIC_ENHANCE to enhance the sanity check
which trigger SIT bitmap check rather than only range check.
This patch did below changes as wel:
- set SBI_NEED_FSCK in f2fs_is_valid_blkaddr().
- get rid of is_valid_data_blkaddr() to avoid panic if blkaddr is invalid.
- introduce verify_fio_blkaddr() to wrap fio {new,old}_blkaddr validation check.
- spread blkaddr check in:
* f2fs_get_node_info()
* __read_out_blkaddrs()
* f2fs_submit_page_read()
* ra_data_block()
* do_recover_data()
This patch can fix bug reported from bugzilla below:
https://bugzilla.kernel.org/show_bug.cgi?id=203215
https://bugzilla.kernel.org/show_bug.cgi?id=203223
https://bugzilla.kernel.org/show_bug.cgi?id=203231
https://bugzilla.kernel.org/show_bug.cgi?id=203235
https://bugzilla.kernel.org/show_bug.cgi?id=203241
= Update by Jaegeuk Kim =
DATA_GENERIC_ENHANCE enhanced to validate block addresses on read/write paths.
But, xfstest/generic/446 compalins some generated kernel messages saying invalid
bitmap was detected when reading a block. The reaons is, when we get the
block addresses from extent_cache, there is no lock to synchronize it from
truncating the blocks in parallel.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2019-04-15 10:26:32 +03:00
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((!__is_valid_data_blkaddr(blk_addr)) ? \
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
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NULL_SEGNO : GET_L2R_SEGNO(FREE_I(sbi), \
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GET_SEGNO_FROM_SEG0(sbi, blk_addr)))
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2017-04-08 01:08:17 +03:00
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#define BLKS_PER_SEC(sbi) \
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((sbi)->segs_per_sec * (sbi)->blocks_per_seg)
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#define GET_SEC_FROM_SEG(sbi, segno) \
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2017-04-09 02:11:36 +03:00
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((segno) / (sbi)->segs_per_sec)
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2017-04-08 01:08:17 +03:00
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#define GET_SEG_FROM_SEC(sbi, secno) \
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2017-04-08 00:27:07 +03:00
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((secno) * (sbi)->segs_per_sec)
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2017-04-08 01:08:17 +03:00
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#define GET_ZONE_FROM_SEC(sbi, secno) \
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((secno) / (sbi)->secs_per_zone)
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#define GET_ZONE_FROM_SEG(sbi, segno) \
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GET_ZONE_FROM_SEC(sbi, GET_SEC_FROM_SEG(sbi, segno))
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
|
|
|
|
#define GET_SUM_BLOCK(sbi, segno) \
|
2017-04-09 02:11:36 +03:00
|
|
|
((sbi)->sm_info->ssa_blkaddr + (segno))
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
|
|
|
|
#define GET_SUM_TYPE(footer) ((footer)->entry_type)
|
2017-04-09 02:11:36 +03:00
|
|
|
#define SET_SUM_TYPE(footer, type) ((footer)->entry_type = (type))
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
|
|
|
|
#define SIT_ENTRY_OFFSET(sit_i, segno) \
|
2017-04-09 02:11:36 +03:00
|
|
|
((segno) % (sit_i)->sents_per_block)
|
2014-09-04 14:11:47 +04:00
|
|
|
#define SIT_BLOCK_OFFSET(segno) \
|
2017-04-09 02:11:36 +03:00
|
|
|
((segno) / SIT_ENTRY_PER_BLOCK)
|
2014-09-04 14:11:47 +04:00
|
|
|
#define START_SEGNO(segno) \
|
|
|
|
(SIT_BLOCK_OFFSET(segno) * SIT_ENTRY_PER_BLOCK)
|
2013-11-22 05:09:59 +04:00
|
|
|
#define SIT_BLK_CNT(sbi) \
|
2019-06-20 17:42:08 +03:00
|
|
|
DIV_ROUND_UP(MAIN_SEGS(sbi), SIT_ENTRY_PER_BLOCK)
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
#define f2fs_bitmap_size(nr) \
|
|
|
|
(BITS_TO_LONGS(nr) * sizeof(unsigned long))
|
|
|
|
|
2014-09-15 14:01:10 +04:00
|
|
|
#define SECTOR_FROM_BLOCK(blk_addr) \
|
|
|
|
(((sector_t)blk_addr) << F2FS_LOG_SECTORS_PER_BLOCK)
|
|
|
|
#define SECTOR_TO_BLOCK(sectors) \
|
2017-04-09 02:11:36 +03:00
|
|
|
((sectors) >> F2FS_LOG_SECTORS_PER_BLOCK)
|
2012-12-10 04:26:05 +04:00
|
|
|
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
/*
|
|
|
|
* indicate a block allocation direction: RIGHT and LEFT.
|
|
|
|
* RIGHT means allocating new sections towards the end of volume.
|
|
|
|
* LEFT means the opposite direction.
|
|
|
|
*/
|
|
|
|
enum {
|
|
|
|
ALLOC_RIGHT = 0,
|
|
|
|
ALLOC_LEFT
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* In the victim_sel_policy->alloc_mode, there are two block allocation modes.
|
|
|
|
* LFS writes data sequentially with cleaning operations.
|
|
|
|
* SSR (Slack Space Recycle) reuses obsolete space without cleaning operations.
|
|
|
|
*/
|
|
|
|
enum {
|
|
|
|
LFS = 0,
|
|
|
|
SSR
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* In the victim_sel_policy->gc_mode, there are two gc, aka cleaning, modes.
|
|
|
|
* GC_CB is based on cost-benefit algorithm.
|
|
|
|
* GC_GREEDY is based on greedy algorithm.
|
|
|
|
*/
|
|
|
|
enum {
|
|
|
|
GC_CB = 0,
|
2017-04-14 01:17:00 +03:00
|
|
|
GC_GREEDY,
|
|
|
|
ALLOC_NEXT,
|
|
|
|
FLUSH_DEVICE,
|
|
|
|
MAX_GC_POLICY,
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* BG_GC means the background cleaning job.
|
|
|
|
* FG_GC means the on-demand cleaning job.
|
2015-10-05 21:02:54 +03:00
|
|
|
* FORCE_FG_GC means on-demand cleaning job in background.
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
*/
|
|
|
|
enum {
|
|
|
|
BG_GC = 0,
|
2015-10-05 21:02:54 +03:00
|
|
|
FG_GC,
|
|
|
|
FORCE_FG_GC,
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
};
|
|
|
|
|
|
|
|
/* for a function parameter to select a victim segment */
|
|
|
|
struct victim_sel_policy {
|
|
|
|
int alloc_mode; /* LFS or SSR */
|
|
|
|
int gc_mode; /* GC_CB or GC_GREEDY */
|
2020-06-18 07:37:10 +03:00
|
|
|
unsigned long *dirty_bitmap; /* dirty segment/section bitmap */
|
|
|
|
unsigned int max_search; /*
|
|
|
|
* maximum # of segments/sections
|
|
|
|
* to search
|
|
|
|
*/
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
unsigned int offset; /* last scanned bitmap offset */
|
|
|
|
unsigned int ofs_unit; /* bitmap search unit */
|
|
|
|
unsigned int min_cost; /* minimum cost */
|
|
|
|
unsigned int min_segno; /* segment # having min. cost */
|
|
|
|
};
|
|
|
|
|
|
|
|
struct seg_entry {
|
2016-05-04 18:19:48 +03:00
|
|
|
unsigned int type:6; /* segment type like CURSEG_XXX_TYPE */
|
|
|
|
unsigned int valid_blocks:10; /* # of valid blocks */
|
|
|
|
unsigned int ckpt_valid_blocks:10; /* # of valid blocks last cp */
|
|
|
|
unsigned int padding:6; /* padding */
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
unsigned char *cur_valid_map; /* validity bitmap of blocks */
|
2017-01-07 13:51:01 +03:00
|
|
|
#ifdef CONFIG_F2FS_CHECK_FS
|
|
|
|
unsigned char *cur_valid_map_mir; /* mirror of current valid bitmap */
|
|
|
|
#endif
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
/*
|
2020-07-20 03:13:44 +03:00
|
|
|
* # of valid blocks and the validity bitmap stored in the last
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
* checkpoint pack. This information is used by the SSR mode.
|
|
|
|
*/
|
2016-05-04 18:19:48 +03:00
|
|
|
unsigned char *ckpt_valid_map; /* validity bitmap of blocks last cp */
|
2015-05-01 08:37:50 +03:00
|
|
|
unsigned char *discard_map;
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
unsigned long long mtime; /* modification time of the segment */
|
|
|
|
};
|
|
|
|
|
|
|
|
struct sec_entry {
|
|
|
|
unsigned int valid_blocks; /* # of valid blocks in a section */
|
|
|
|
};
|
|
|
|
|
|
|
|
struct segment_allocation {
|
|
|
|
void (*allocate_segment)(struct f2fs_sb_info *, int, bool);
|
|
|
|
};
|
|
|
|
|
2018-07-25 06:11:56 +03:00
|
|
|
#define MAX_SKIP_GC_COUNT 16
|
f2fs: avoid stucking GC due to atomic write
f2fs doesn't allow abuse on atomic write class interface, so except
limiting in-mem pages' total memory usage capacity, we need to limit
atomic-write usage as well when filesystem is seriously fragmented,
otherwise we may run into infinite loop during foreground GC because
target blocks in victim segment are belong to atomic opened file for
long time.
Now, we will detect failure due to atomic write in foreground GC, if
the count exceeds threshold, we will drop all atomic written data in
cache, by this, I expect it can keep our system running safely to
prevent Dos attack.
In addition, his patch adds to show GC skip information in debugfs,
now it just shows count of skipped caused by atomic write.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-05-07 15:28:54 +03:00
|
|
|
|
2014-10-07 04:39:50 +04:00
|
|
|
struct inmem_pages {
|
|
|
|
struct list_head list;
|
|
|
|
struct page *page;
|
f2fs: support revoking atomic written pages
f2fs support atomic write with following semantics:
1. open db file
2. ioctl start atomic write
3. (write db file) * n
4. ioctl commit atomic write
5. close db file
With this flow we can avoid file becoming corrupted when abnormal power
cut, because we hold data of transaction in referenced pages linked in
inmem_pages list of inode, but without setting them dirty, so these data
won't be persisted unless we commit them in step 4.
But we should still hold journal db file in memory by using volatile
write, because our semantics of 'atomic write support' is incomplete, in
step 4, we could fail to submit all dirty data of transaction, once
partial dirty data was committed in storage, then after a checkpoint &
abnormal power-cut, db file will be corrupted forever.
So this patch tries to improve atomic write flow by adding a revoking flow,
once inner error occurs in committing, this gives another chance to try to
revoke these partial submitted data of current transaction, it makes
committing operation more like aotmical one.
If we're not lucky, once revoking operation was failed, EAGAIN will be
reported to user for suggesting doing the recovery with held journal file,
or retrying current transaction again.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-02-06 09:40:34 +03:00
|
|
|
block_t old_addr; /* for revoking when fail to commit */
|
2014-10-07 04:39:50 +04:00
|
|
|
};
|
|
|
|
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
struct sit_info {
|
|
|
|
const struct segment_allocation *s_ops;
|
|
|
|
|
|
|
|
block_t sit_base_addr; /* start block address of SIT area */
|
|
|
|
block_t sit_blocks; /* # of blocks used by SIT area */
|
|
|
|
block_t written_valid_blocks; /* # of valid blocks in main area */
|
2019-07-26 10:41:20 +03:00
|
|
|
char *bitmap; /* all bitmaps pointer */
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
char *sit_bitmap; /* SIT bitmap pointer */
|
2017-01-07 13:52:34 +03:00
|
|
|
#ifdef CONFIG_F2FS_CHECK_FS
|
|
|
|
char *sit_bitmap_mir; /* SIT bitmap mirror */
|
2019-08-07 16:40:32 +03:00
|
|
|
|
|
|
|
/* bitmap of segments to be ignored by GC in case of errors */
|
|
|
|
unsigned long *invalid_segmap;
|
2017-01-07 13:52:34 +03:00
|
|
|
#endif
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
unsigned int bitmap_size; /* SIT bitmap size */
|
|
|
|
|
2015-02-11 03:44:29 +03:00
|
|
|
unsigned long *tmp_map; /* bitmap for temporal use */
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
unsigned long *dirty_sentries_bitmap; /* bitmap for dirty sentries */
|
|
|
|
unsigned int dirty_sentries; /* # of dirty sentries */
|
|
|
|
unsigned int sents_per_block; /* # of SIT entries per block */
|
2017-10-30 12:49:53 +03:00
|
|
|
struct rw_semaphore sentry_lock; /* to protect SIT cache */
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
struct seg_entry *sentries; /* SIT segment-level cache */
|
|
|
|
struct sec_entry *sec_entries; /* SIT section-level cache */
|
|
|
|
|
|
|
|
/* for cost-benefit algorithm in cleaning procedure */
|
|
|
|
unsigned long long elapsed_time; /* elapsed time after mount */
|
|
|
|
unsigned long long mounted_time; /* mount time */
|
|
|
|
unsigned long long min_mtime; /* min. modification time */
|
|
|
|
unsigned long long max_mtime; /* max. modification time */
|
2017-04-14 01:17:00 +03:00
|
|
|
|
|
|
|
unsigned int last_victim[MAX_GC_POLICY]; /* last victim segment # */
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
};
|
|
|
|
|
|
|
|
struct free_segmap_info {
|
|
|
|
unsigned int start_segno; /* start segment number logically */
|
|
|
|
unsigned int free_segments; /* # of free segments */
|
|
|
|
unsigned int free_sections; /* # of free sections */
|
2015-02-11 13:20:38 +03:00
|
|
|
spinlock_t segmap_lock; /* free segmap lock */
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
unsigned long *free_segmap; /* free segment bitmap */
|
|
|
|
unsigned long *free_secmap; /* free section bitmap */
|
|
|
|
};
|
|
|
|
|
|
|
|
/* Notice: The order of dirty type is same with CURSEG_XXX in f2fs.h */
|
|
|
|
enum dirty_type {
|
|
|
|
DIRTY_HOT_DATA, /* dirty segments assigned as hot data logs */
|
|
|
|
DIRTY_WARM_DATA, /* dirty segments assigned as warm data logs */
|
|
|
|
DIRTY_COLD_DATA, /* dirty segments assigned as cold data logs */
|
|
|
|
DIRTY_HOT_NODE, /* dirty segments assigned as hot node logs */
|
|
|
|
DIRTY_WARM_NODE, /* dirty segments assigned as warm node logs */
|
|
|
|
DIRTY_COLD_NODE, /* dirty segments assigned as cold node logs */
|
|
|
|
DIRTY, /* to count # of dirty segments */
|
|
|
|
PRE, /* to count # of entirely obsolete segments */
|
|
|
|
NR_DIRTY_TYPE
|
|
|
|
};
|
|
|
|
|
|
|
|
struct dirty_seglist_info {
|
|
|
|
const struct victim_selection *v_ops; /* victim selction operation */
|
|
|
|
unsigned long *dirty_segmap[NR_DIRTY_TYPE];
|
2020-06-18 07:37:10 +03:00
|
|
|
unsigned long *dirty_secmap;
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
struct mutex seglist_lock; /* lock for segment bitmaps */
|
|
|
|
int nr_dirty[NR_DIRTY_TYPE]; /* # of dirty segments */
|
2013-03-31 08:26:03 +04:00
|
|
|
unsigned long *victim_secmap; /* background GC victims */
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
};
|
|
|
|
|
|
|
|
/* victim selection function for cleaning and SSR */
|
|
|
|
struct victim_selection {
|
|
|
|
int (*get_victim)(struct f2fs_sb_info *, unsigned int *,
|
|
|
|
int, int, char);
|
|
|
|
};
|
|
|
|
|
|
|
|
/* for active log information */
|
|
|
|
struct curseg_info {
|
|
|
|
struct mutex curseg_mutex; /* lock for consistency */
|
|
|
|
struct f2fs_summary_block *sum_blk; /* cached summary block */
|
f2fs: split journal cache from curseg cache
In curseg cache, f2fs caches two different parts:
- datas of current summay block, i.e. summary entries, footer info.
- journal info, i.e. sparse nat/sit entries or io stat info.
With this approach, 1) it may cause higher lock contention when we access
or update both of the parts of cache since we use the same mutex lock
curseg_mutex to protect the cache. 2) current summary block with last
journal info will be writebacked into device as a normal summary block
when flushing, however, we treat journal info as valid one only in current
summary, so most normal summary blocks contain junk journal data, it wastes
remaining space of summary block.
So, in order to fix above issues, we split curseg cache into two parts:
a) current summary block, protected by original mutex lock curseg_mutex
b) journal cache, protected by newly introduced r/w semaphore journal_rwsem
When loading curseg cache during ->mount, we store summary info and
journal info into different caches; When doing checkpoint, we combine
datas of two cache into current summary block for persisting.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-02-19 13:08:46 +03:00
|
|
|
struct rw_semaphore journal_rwsem; /* protect journal area */
|
|
|
|
struct f2fs_journal *journal; /* cached journal info */
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
unsigned char alloc_type; /* current allocation type */
|
|
|
|
unsigned int segno; /* current segment number */
|
|
|
|
unsigned short next_blkoff; /* next block offset to write */
|
|
|
|
unsigned int zone; /* current zone number */
|
|
|
|
unsigned int next_segno; /* preallocated segment */
|
|
|
|
};
|
|
|
|
|
f2fs: refactor flush_sit_entries codes for reducing SIT writes
In commit aec71382c681 ("f2fs: refactor flush_nat_entries codes for reducing NAT
writes"), we descripte the issue as below:
"Although building NAT journal in cursum reduce the read/write work for NAT
block, but previous design leave us lower performance when write checkpoint
frequently for these cases:
1. if journal in cursum has already full, it's a bit of waste that we flush all
nat entries to page for persistence, but not to cache any entries.
2. if journal in cursum is not full, we fill nat entries to journal util
journal is full, then flush the left dirty entries to disk without merge
journaled entries, so these journaled entries may be flushed to disk at next
checkpoint but lost chance to flushed last time."
Actually, we have the same problem in using SIT journal area.
In this patch, firstly we will update sit journal with dirty entries as many as
possible. Secondly if there is no space in sit journal, we will remove all
entries in journal and walk through the whole dirty entry bitmap of sit,
accounting dirty sit entries located in same SIT block to sit entry set. All
entry sets are linked to list sit_entry_set in sm_info, sorted ascending order
by count of entries in set. Later we flush entries in set which have fewest
entries into journal as many as we can, and then flush dense set with merged
entries to disk.
In this way we can use sit journal area more effectively, also we will reduce
SIT update, result in gaining in performance and saving lifetime of flash
device.
In my testing environment, it shows this patch can help to reduce SIT block
update obviously.
virtual machine + hard disk:
fsstress -p 20 -n 400 -l 5
sit page num cp count sit pages/cp
based 2006.50 1349.75 1.486
patched 1566.25 1463.25 1.070
Our latency of merging op is small when handling a great number of dirty SIT
entries in flush_sit_entries:
latency(ns) dirty sit count
36038 2151
49168 2123
37174 2232
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-09-04 14:13:01 +04:00
|
|
|
struct sit_entry_set {
|
|
|
|
struct list_head set_list; /* link with all sit sets */
|
|
|
|
unsigned int start_segno; /* start segno of sits in set */
|
|
|
|
unsigned int entry_cnt; /* the # of sit entries in set */
|
|
|
|
};
|
|
|
|
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
/*
|
|
|
|
* inline functions
|
|
|
|
*/
|
|
|
|
static inline struct curseg_info *CURSEG_I(struct f2fs_sb_info *sbi, int type)
|
|
|
|
{
|
2019-10-18 20:06:40 +03:00
|
|
|
if (type == CURSEG_COLD_DATA_PINNED)
|
|
|
|
type = CURSEG_COLD_DATA;
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
return (struct curseg_info *)(SM_I(sbi)->curseg_array + type);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline struct seg_entry *get_seg_entry(struct f2fs_sb_info *sbi,
|
|
|
|
unsigned int segno)
|
|
|
|
{
|
|
|
|
struct sit_info *sit_i = SIT_I(sbi);
|
|
|
|
return &sit_i->sentries[segno];
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline struct sec_entry *get_sec_entry(struct f2fs_sb_info *sbi,
|
|
|
|
unsigned int segno)
|
|
|
|
{
|
|
|
|
struct sit_info *sit_i = SIT_I(sbi);
|
2017-04-08 01:08:17 +03:00
|
|
|
return &sit_i->sec_entries[GET_SEC_FROM_SEG(sbi, segno)];
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
static inline unsigned int get_valid_blocks(struct f2fs_sb_info *sbi,
|
2017-04-08 00:33:22 +03:00
|
|
|
unsigned int segno, bool use_section)
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
{
|
|
|
|
/*
|
|
|
|
* In order to get # of valid blocks in a section instantly from many
|
|
|
|
* segments, f2fs manages two counting structures separately.
|
|
|
|
*/
|
2018-10-24 13:37:26 +03:00
|
|
|
if (use_section && __is_large_section(sbi))
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
return get_sec_entry(sbi, segno)->valid_blocks;
|
|
|
|
else
|
|
|
|
return get_seg_entry(sbi, segno)->valid_blocks;
|
|
|
|
}
|
|
|
|
|
2018-08-21 05:21:43 +03:00
|
|
|
static inline unsigned int get_ckpt_valid_blocks(struct f2fs_sb_info *sbi,
|
|
|
|
unsigned int segno)
|
|
|
|
{
|
|
|
|
return get_seg_entry(sbi, segno)->ckpt_valid_blocks;
|
|
|
|
}
|
|
|
|
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
static inline void seg_info_from_raw_sit(struct seg_entry *se,
|
|
|
|
struct f2fs_sit_entry *rs)
|
|
|
|
{
|
|
|
|
se->valid_blocks = GET_SIT_VBLOCKS(rs);
|
|
|
|
se->ckpt_valid_blocks = GET_SIT_VBLOCKS(rs);
|
|
|
|
memcpy(se->cur_valid_map, rs->valid_map, SIT_VBLOCK_MAP_SIZE);
|
|
|
|
memcpy(se->ckpt_valid_map, rs->valid_map, SIT_VBLOCK_MAP_SIZE);
|
2017-01-07 13:51:01 +03:00
|
|
|
#ifdef CONFIG_F2FS_CHECK_FS
|
|
|
|
memcpy(se->cur_valid_map_mir, rs->valid_map, SIT_VBLOCK_MAP_SIZE);
|
|
|
|
#endif
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
se->type = GET_SIT_TYPE(rs);
|
|
|
|
se->mtime = le64_to_cpu(rs->mtime);
|
|
|
|
}
|
|
|
|
|
f2fs: rebuild sit page from sit info in mem
This patch rebuild sit page from sit info in mem instead
of issue a read io.
I test this method and the result is as below:
Pre:
mmc_perf_test-12061 [001] ...1 976.819992: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [001] ...1 976.856446: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 998.976946: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 999.023269: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1022.060772: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1022.111034: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [002] ...1 1070.127643: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1070.187352: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1095.942124: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1095.995975: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1122.535091: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1122.586521: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [001] ...1 1147.897487: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [001] ...1 1147.959438: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1177.926951: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [002] ...1 1177.976823: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [002] ...1 1204.176087: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [002] ...1 1204.239046: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
Some sit flush consume more than 50ms.
Now:
mmc_perf_test-2187 [007] ...1 196.840684: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [007] ...1 196.841258: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [007] ...1 219.430582: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [007] ...1 219.431144: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [002] ...1 243.638678: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [000] ...1 243.638980: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [002] ...1 265.392180: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [002] ...1 265.392245: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [000] ...1 290.309051: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [000] ...1 290.309116: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [003] ...1 317.144209: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [003] ...1 317.145913: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [005] ...1 343.224954: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [005] ...1 343.225574: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [000] ...1 370.239846: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [000] ...1 370.241138: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [001] ...1 397.029043: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [001] ...1 397.030750: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [003] ...1 425.386377: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [003] ...1 425.387735: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
Most sit flush consume no more than 1ms.
Signed-off-by: Yunlei He <heyunlei@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-01-25 12:27:11 +03:00
|
|
|
static inline void __seg_info_to_raw_sit(struct seg_entry *se,
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
struct f2fs_sit_entry *rs)
|
|
|
|
{
|
|
|
|
unsigned short raw_vblocks = (se->type << SIT_VBLOCKS_SHIFT) |
|
|
|
|
se->valid_blocks;
|
|
|
|
rs->vblocks = cpu_to_le16(raw_vblocks);
|
|
|
|
memcpy(rs->valid_map, se->cur_valid_map, SIT_VBLOCK_MAP_SIZE);
|
f2fs: rebuild sit page from sit info in mem
This patch rebuild sit page from sit info in mem instead
of issue a read io.
I test this method and the result is as below:
Pre:
mmc_perf_test-12061 [001] ...1 976.819992: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [001] ...1 976.856446: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 998.976946: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 999.023269: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1022.060772: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1022.111034: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [002] ...1 1070.127643: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1070.187352: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1095.942124: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1095.995975: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1122.535091: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1122.586521: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [001] ...1 1147.897487: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [001] ...1 1147.959438: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1177.926951: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [002] ...1 1177.976823: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [002] ...1 1204.176087: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [002] ...1 1204.239046: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
Some sit flush consume more than 50ms.
Now:
mmc_perf_test-2187 [007] ...1 196.840684: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [007] ...1 196.841258: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [007] ...1 219.430582: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [007] ...1 219.431144: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [002] ...1 243.638678: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [000] ...1 243.638980: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [002] ...1 265.392180: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [002] ...1 265.392245: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [000] ...1 290.309051: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [000] ...1 290.309116: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [003] ...1 317.144209: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [003] ...1 317.145913: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [005] ...1 343.224954: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [005] ...1 343.225574: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [000] ...1 370.239846: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [000] ...1 370.241138: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [001] ...1 397.029043: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [001] ...1 397.030750: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [003] ...1 425.386377: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [003] ...1 425.387735: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
Most sit flush consume no more than 1ms.
Signed-off-by: Yunlei He <heyunlei@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-01-25 12:27:11 +03:00
|
|
|
rs->mtime = cpu_to_le64(se->mtime);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void seg_info_to_sit_page(struct f2fs_sb_info *sbi,
|
|
|
|
struct page *page, unsigned int start)
|
|
|
|
{
|
|
|
|
struct f2fs_sit_block *raw_sit;
|
|
|
|
struct seg_entry *se;
|
|
|
|
struct f2fs_sit_entry *rs;
|
|
|
|
unsigned int end = min(start + SIT_ENTRY_PER_BLOCK,
|
|
|
|
(unsigned long)MAIN_SEGS(sbi));
|
|
|
|
int i;
|
|
|
|
|
|
|
|
raw_sit = (struct f2fs_sit_block *)page_address(page);
|
2018-04-09 15:25:06 +03:00
|
|
|
memset(raw_sit, 0, PAGE_SIZE);
|
f2fs: rebuild sit page from sit info in mem
This patch rebuild sit page from sit info in mem instead
of issue a read io.
I test this method and the result is as below:
Pre:
mmc_perf_test-12061 [001] ...1 976.819992: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [001] ...1 976.856446: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 998.976946: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 999.023269: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1022.060772: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1022.111034: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [002] ...1 1070.127643: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1070.187352: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1095.942124: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1095.995975: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1122.535091: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1122.586521: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [001] ...1 1147.897487: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [001] ...1 1147.959438: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1177.926951: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [002] ...1 1177.976823: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [002] ...1 1204.176087: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [002] ...1 1204.239046: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
Some sit flush consume more than 50ms.
Now:
mmc_perf_test-2187 [007] ...1 196.840684: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [007] ...1 196.841258: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [007] ...1 219.430582: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [007] ...1 219.431144: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [002] ...1 243.638678: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [000] ...1 243.638980: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [002] ...1 265.392180: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [002] ...1 265.392245: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [000] ...1 290.309051: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [000] ...1 290.309116: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [003] ...1 317.144209: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [003] ...1 317.145913: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [005] ...1 343.224954: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [005] ...1 343.225574: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [000] ...1 370.239846: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [000] ...1 370.241138: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [001] ...1 397.029043: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [001] ...1 397.030750: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [003] ...1 425.386377: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [003] ...1 425.387735: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
Most sit flush consume no more than 1ms.
Signed-off-by: Yunlei He <heyunlei@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-01-25 12:27:11 +03:00
|
|
|
for (i = 0; i < end - start; i++) {
|
|
|
|
rs = &raw_sit->entries[i];
|
|
|
|
se = get_seg_entry(sbi, start + i);
|
|
|
|
__seg_info_to_raw_sit(se, rs);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void seg_info_to_raw_sit(struct seg_entry *se,
|
|
|
|
struct f2fs_sit_entry *rs)
|
|
|
|
{
|
|
|
|
__seg_info_to_raw_sit(se, rs);
|
|
|
|
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
memcpy(se->ckpt_valid_map, rs->valid_map, SIT_VBLOCK_MAP_SIZE);
|
|
|
|
se->ckpt_valid_blocks = se->valid_blocks;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline unsigned int find_next_inuse(struct free_segmap_info *free_i,
|
|
|
|
unsigned int max, unsigned int segno)
|
|
|
|
{
|
|
|
|
unsigned int ret;
|
2015-02-11 13:20:38 +03:00
|
|
|
spin_lock(&free_i->segmap_lock);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
ret = find_next_bit(free_i->free_segmap, max, segno);
|
2015-02-11 13:20:38 +03:00
|
|
|
spin_unlock(&free_i->segmap_lock);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void __set_free(struct f2fs_sb_info *sbi, unsigned int segno)
|
|
|
|
{
|
|
|
|
struct free_segmap_info *free_i = FREE_I(sbi);
|
2017-04-08 01:08:17 +03:00
|
|
|
unsigned int secno = GET_SEC_FROM_SEG(sbi, segno);
|
|
|
|
unsigned int start_segno = GET_SEG_FROM_SEC(sbi, secno);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
unsigned int next;
|
|
|
|
|
2015-02-11 13:20:38 +03:00
|
|
|
spin_lock(&free_i->segmap_lock);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
clear_bit(segno, free_i->free_segmap);
|
|
|
|
free_i->free_segments++;
|
|
|
|
|
2015-03-06 10:00:55 +03:00
|
|
|
next = find_next_bit(free_i->free_segmap,
|
|
|
|
start_segno + sbi->segs_per_sec, start_segno);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
if (next >= start_segno + sbi->segs_per_sec) {
|
|
|
|
clear_bit(secno, free_i->free_secmap);
|
|
|
|
free_i->free_sections++;
|
|
|
|
}
|
2015-02-11 13:20:38 +03:00
|
|
|
spin_unlock(&free_i->segmap_lock);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
static inline void __set_inuse(struct f2fs_sb_info *sbi,
|
|
|
|
unsigned int segno)
|
|
|
|
{
|
|
|
|
struct free_segmap_info *free_i = FREE_I(sbi);
|
2017-04-08 01:08:17 +03:00
|
|
|
unsigned int secno = GET_SEC_FROM_SEG(sbi, segno);
|
|
|
|
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
set_bit(segno, free_i->free_segmap);
|
|
|
|
free_i->free_segments--;
|
|
|
|
if (!test_and_set_bit(secno, free_i->free_secmap))
|
|
|
|
free_i->free_sections--;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void __set_test_and_free(struct f2fs_sb_info *sbi,
|
|
|
|
unsigned int segno)
|
|
|
|
{
|
|
|
|
struct free_segmap_info *free_i = FREE_I(sbi);
|
2017-04-08 01:08:17 +03:00
|
|
|
unsigned int secno = GET_SEC_FROM_SEG(sbi, segno);
|
|
|
|
unsigned int start_segno = GET_SEG_FROM_SEC(sbi, secno);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
unsigned int next;
|
|
|
|
|
2015-02-11 13:20:38 +03:00
|
|
|
spin_lock(&free_i->segmap_lock);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
if (test_and_clear_bit(segno, free_i->free_segmap)) {
|
|
|
|
free_i->free_segments++;
|
|
|
|
|
2018-07-12 18:09:26 +03:00
|
|
|
if (IS_CURSEC(sbi, secno))
|
|
|
|
goto skip_free;
|
2014-07-14 12:45:15 +04:00
|
|
|
next = find_next_bit(free_i->free_segmap,
|
|
|
|
start_segno + sbi->segs_per_sec, start_segno);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
if (next >= start_segno + sbi->segs_per_sec) {
|
|
|
|
if (test_and_clear_bit(secno, free_i->free_secmap))
|
|
|
|
free_i->free_sections++;
|
|
|
|
}
|
|
|
|
}
|
2018-07-12 18:09:26 +03:00
|
|
|
skip_free:
|
2015-02-11 13:20:38 +03:00
|
|
|
spin_unlock(&free_i->segmap_lock);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
static inline void __set_test_and_inuse(struct f2fs_sb_info *sbi,
|
|
|
|
unsigned int segno)
|
|
|
|
{
|
|
|
|
struct free_segmap_info *free_i = FREE_I(sbi);
|
2017-04-08 01:08:17 +03:00
|
|
|
unsigned int secno = GET_SEC_FROM_SEG(sbi, segno);
|
|
|
|
|
2015-02-11 13:20:38 +03:00
|
|
|
spin_lock(&free_i->segmap_lock);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
if (!test_and_set_bit(segno, free_i->free_segmap)) {
|
|
|
|
free_i->free_segments--;
|
|
|
|
if (!test_and_set_bit(secno, free_i->free_secmap))
|
|
|
|
free_i->free_sections--;
|
|
|
|
}
|
2015-02-11 13:20:38 +03:00
|
|
|
spin_unlock(&free_i->segmap_lock);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
static inline void get_sit_bitmap(struct f2fs_sb_info *sbi,
|
|
|
|
void *dst_addr)
|
|
|
|
{
|
|
|
|
struct sit_info *sit_i = SIT_I(sbi);
|
2017-01-07 13:52:34 +03:00
|
|
|
|
|
|
|
#ifdef CONFIG_F2FS_CHECK_FS
|
|
|
|
if (memcmp(sit_i->sit_bitmap, sit_i->sit_bitmap_mir,
|
|
|
|
sit_i->bitmap_size))
|
|
|
|
f2fs_bug_on(sbi, 1);
|
|
|
|
#endif
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
memcpy(dst_addr, sit_i->sit_bitmap, sit_i->bitmap_size);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline block_t written_block_count(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
2014-02-24 08:00:13 +04:00
|
|
|
return SIT_I(sbi)->written_valid_blocks;
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
static inline unsigned int free_segments(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
2014-02-24 08:00:13 +04:00
|
|
|
return FREE_I(sbi)->free_segments;
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
static inline int reserved_segments(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
|
|
|
return SM_I(sbi)->reserved_segments;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline unsigned int free_sections(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
2014-02-24 08:00:13 +04:00
|
|
|
return FREE_I(sbi)->free_sections;
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
static inline unsigned int prefree_segments(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
|
|
|
return DIRTY_I(sbi)->nr_dirty[PRE];
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline unsigned int dirty_segments(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
|
|
|
return DIRTY_I(sbi)->nr_dirty[DIRTY_HOT_DATA] +
|
|
|
|
DIRTY_I(sbi)->nr_dirty[DIRTY_WARM_DATA] +
|
|
|
|
DIRTY_I(sbi)->nr_dirty[DIRTY_COLD_DATA] +
|
|
|
|
DIRTY_I(sbi)->nr_dirty[DIRTY_HOT_NODE] +
|
|
|
|
DIRTY_I(sbi)->nr_dirty[DIRTY_WARM_NODE] +
|
|
|
|
DIRTY_I(sbi)->nr_dirty[DIRTY_COLD_NODE];
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline int overprovision_segments(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
|
|
|
return SM_I(sbi)->ovp_segments;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline int reserved_sections(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
2017-04-08 01:08:17 +03:00
|
|
|
return GET_SEC_FROM_SEG(sbi, (unsigned int)reserved_segments(sbi));
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
}
|
|
|
|
|
2017-10-30 12:49:54 +03:00
|
|
|
static inline bool has_curseg_enough_space(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
|
|
|
unsigned int node_blocks = get_pages(sbi, F2FS_DIRTY_NODES) +
|
|
|
|
get_pages(sbi, F2FS_DIRTY_DENTS);
|
|
|
|
unsigned int dent_blocks = get_pages(sbi, F2FS_DIRTY_DENTS);
|
|
|
|
unsigned int segno, left_blocks;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
/* check current node segment */
|
|
|
|
for (i = CURSEG_HOT_NODE; i <= CURSEG_COLD_NODE; i++) {
|
|
|
|
segno = CURSEG_I(sbi, i)->segno;
|
|
|
|
left_blocks = sbi->blocks_per_seg -
|
|
|
|
get_seg_entry(sbi, segno)->ckpt_valid_blocks;
|
|
|
|
|
|
|
|
if (node_blocks > left_blocks)
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* check current data segment */
|
|
|
|
segno = CURSEG_I(sbi, CURSEG_HOT_DATA)->segno;
|
|
|
|
left_blocks = sbi->blocks_per_seg -
|
|
|
|
get_seg_entry(sbi, segno)->ckpt_valid_blocks;
|
|
|
|
if (dent_blocks > left_blocks)
|
|
|
|
return false;
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2016-09-01 22:02:51 +03:00
|
|
|
static inline bool has_not_enough_free_secs(struct f2fs_sb_info *sbi,
|
|
|
|
int freed, int needed)
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
{
|
2013-02-02 18:52:59 +04:00
|
|
|
int node_secs = get_blocktype_secs(sbi, F2FS_DIRTY_NODES);
|
|
|
|
int dent_secs = get_blocktype_secs(sbi, F2FS_DIRTY_DENTS);
|
2016-10-14 23:28:05 +03:00
|
|
|
int imeta_secs = get_blocktype_secs(sbi, F2FS_DIRTY_IMETA);
|
2016-05-20 21:10:10 +03:00
|
|
|
|
2015-01-28 12:48:42 +03:00
|
|
|
if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
|
2012-12-21 12:20:21 +04:00
|
|
|
return false;
|
|
|
|
|
2017-10-30 12:49:54 +03:00
|
|
|
if (free_sections(sbi) + freed == reserved_sections(sbi) + needed &&
|
|
|
|
has_curseg_enough_space(sbi))
|
|
|
|
return false;
|
2016-09-01 22:02:51 +03:00
|
|
|
return (free_sections(sbi) + freed) <=
|
2016-10-14 23:28:05 +03:00
|
|
|
(node_secs + 2 * dent_secs + imeta_secs +
|
|
|
|
reserved_sections(sbi) + needed);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
}
|
|
|
|
|
2019-08-23 12:58:36 +03:00
|
|
|
static inline bool f2fs_is_checkpoint_ready(struct f2fs_sb_info *sbi)
|
2018-08-21 05:21:43 +03:00
|
|
|
{
|
|
|
|
if (likely(!is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
|
2019-08-23 12:58:36 +03:00
|
|
|
return true;
|
2018-08-21 05:21:43 +03:00
|
|
|
if (likely(!has_not_enough_free_secs(sbi, 0, 0)))
|
2019-08-23 12:58:36 +03:00
|
|
|
return true;
|
|
|
|
return false;
|
2018-08-21 05:21:43 +03:00
|
|
|
}
|
|
|
|
|
2013-10-24 08:31:34 +04:00
|
|
|
static inline bool excess_prefree_segs(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
2014-01-18 00:44:39 +04:00
|
|
|
return prefree_segments(sbi) > SM_I(sbi)->rec_prefree_segments;
|
2013-10-24 08:31:34 +04:00
|
|
|
}
|
|
|
|
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
static inline int utilization(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
2014-01-18 00:44:39 +04:00
|
|
|
return div_u64((u64)valid_user_blocks(sbi) * 100,
|
|
|
|
sbi->user_block_count);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Sometimes f2fs may be better to drop out-of-place update policy.
|
2013-11-07 08:13:42 +04:00
|
|
|
* And, users can control the policy through sysfs entries.
|
|
|
|
* There are five policies with triggering conditions as follows.
|
|
|
|
* F2FS_IPU_FORCE - all the time,
|
|
|
|
* F2FS_IPU_SSR - if SSR mode is activated,
|
|
|
|
* F2FS_IPU_UTIL - if FS utilization is over threashold,
|
|
|
|
* F2FS_IPU_SSR_UTIL - if SSR mode is activated and FS utilization is over
|
|
|
|
* threashold,
|
2014-09-11 03:53:02 +04:00
|
|
|
* F2FS_IPU_FSYNC - activated in fsync path only for high performance flash
|
|
|
|
* storages. IPU will be triggered only if the # of dirty
|
2020-01-09 02:10:02 +03:00
|
|
|
* pages over min_fsync_blocks. (=default option)
|
|
|
|
* F2FS_IPU_ASYNC - do IPU given by asynchronous write requests.
|
2020-01-07 03:43:09 +03:00
|
|
|
* F2FS_IPU_NOCACHE - disable IPU bio cache.
|
2020-01-09 02:10:02 +03:00
|
|
|
* F2FS_IPUT_DISABLE - disable IPU. (=default option in LFS mode)
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
*/
|
2013-11-07 08:13:42 +04:00
|
|
|
#define DEF_MIN_IPU_UTIL 70
|
2014-09-11 03:53:02 +04:00
|
|
|
#define DEF_MIN_FSYNC_BLOCKS 8
|
2017-03-25 03:05:13 +03:00
|
|
|
#define DEF_MIN_HOT_BLOCKS 16
|
2013-11-07 08:13:42 +04:00
|
|
|
|
2018-02-23 01:09:30 +03:00
|
|
|
#define SMALL_VOLUME_SEGMENTS (16 * 512) /* 16GB */
|
|
|
|
|
2013-11-07 08:13:42 +04:00
|
|
|
enum {
|
|
|
|
F2FS_IPU_FORCE,
|
|
|
|
F2FS_IPU_SSR,
|
|
|
|
F2FS_IPU_UTIL,
|
|
|
|
F2FS_IPU_SSR_UTIL,
|
2014-09-11 03:53:02 +04:00
|
|
|
F2FS_IPU_FSYNC,
|
2017-04-18 14:57:16 +03:00
|
|
|
F2FS_IPU_ASYNC,
|
2020-01-07 03:43:09 +03:00
|
|
|
F2FS_IPU_NOCACHE,
|
2013-11-07 08:13:42 +04:00
|
|
|
};
|
|
|
|
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
static inline unsigned int curseg_segno(struct f2fs_sb_info *sbi,
|
|
|
|
int type)
|
|
|
|
{
|
|
|
|
struct curseg_info *curseg = CURSEG_I(sbi, type);
|
|
|
|
return curseg->segno;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline unsigned char curseg_alloc_type(struct f2fs_sb_info *sbi,
|
|
|
|
int type)
|
|
|
|
{
|
|
|
|
struct curseg_info *curseg = CURSEG_I(sbi, type);
|
|
|
|
return curseg->alloc_type;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline unsigned short curseg_blkoff(struct f2fs_sb_info *sbi, int type)
|
|
|
|
{
|
|
|
|
struct curseg_info *curseg = CURSEG_I(sbi, type);
|
|
|
|
return curseg->next_blkoff;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void check_seg_range(struct f2fs_sb_info *sbi, unsigned int segno)
|
|
|
|
{
|
2015-07-27 13:17:59 +03:00
|
|
|
f2fs_bug_on(sbi, segno > TOTAL_SEGS(sbi) - 1);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
}
|
|
|
|
|
f2fs: introduce DATA_GENERIC_ENHANCE
Previously, f2fs_is_valid_blkaddr(, blkaddr, DATA_GENERIC) will check
whether @blkaddr locates in main area or not.
That check is weak, since the block address in range of main area can
point to the address which is not valid in segment info table, and we
can not detect such condition, we may suffer worse corruption as system
continues running.
So this patch introduce DATA_GENERIC_ENHANCE to enhance the sanity check
which trigger SIT bitmap check rather than only range check.
This patch did below changes as wel:
- set SBI_NEED_FSCK in f2fs_is_valid_blkaddr().
- get rid of is_valid_data_blkaddr() to avoid panic if blkaddr is invalid.
- introduce verify_fio_blkaddr() to wrap fio {new,old}_blkaddr validation check.
- spread blkaddr check in:
* f2fs_get_node_info()
* __read_out_blkaddrs()
* f2fs_submit_page_read()
* ra_data_block()
* do_recover_data()
This patch can fix bug reported from bugzilla below:
https://bugzilla.kernel.org/show_bug.cgi?id=203215
https://bugzilla.kernel.org/show_bug.cgi?id=203223
https://bugzilla.kernel.org/show_bug.cgi?id=203231
https://bugzilla.kernel.org/show_bug.cgi?id=203235
https://bugzilla.kernel.org/show_bug.cgi?id=203241
= Update by Jaegeuk Kim =
DATA_GENERIC_ENHANCE enhanced to validate block addresses on read/write paths.
But, xfstest/generic/446 compalins some generated kernel messages saying invalid
bitmap was detected when reading a block. The reaons is, when we get the
block addresses from extent_cache, there is no lock to synchronize it from
truncating the blocks in parallel.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2019-04-15 10:26:32 +03:00
|
|
|
static inline void verify_fio_blkaddr(struct f2fs_io_info *fio)
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
{
|
2018-03-08 11:29:13 +03:00
|
|
|
struct f2fs_sb_info *sbi = fio->sbi;
|
|
|
|
|
f2fs: introduce DATA_GENERIC_ENHANCE
Previously, f2fs_is_valid_blkaddr(, blkaddr, DATA_GENERIC) will check
whether @blkaddr locates in main area or not.
That check is weak, since the block address in range of main area can
point to the address which is not valid in segment info table, and we
can not detect such condition, we may suffer worse corruption as system
continues running.
So this patch introduce DATA_GENERIC_ENHANCE to enhance the sanity check
which trigger SIT bitmap check rather than only range check.
This patch did below changes as wel:
- set SBI_NEED_FSCK in f2fs_is_valid_blkaddr().
- get rid of is_valid_data_blkaddr() to avoid panic if blkaddr is invalid.
- introduce verify_fio_blkaddr() to wrap fio {new,old}_blkaddr validation check.
- spread blkaddr check in:
* f2fs_get_node_info()
* __read_out_blkaddrs()
* f2fs_submit_page_read()
* ra_data_block()
* do_recover_data()
This patch can fix bug reported from bugzilla below:
https://bugzilla.kernel.org/show_bug.cgi?id=203215
https://bugzilla.kernel.org/show_bug.cgi?id=203223
https://bugzilla.kernel.org/show_bug.cgi?id=203231
https://bugzilla.kernel.org/show_bug.cgi?id=203235
https://bugzilla.kernel.org/show_bug.cgi?id=203241
= Update by Jaegeuk Kim =
DATA_GENERIC_ENHANCE enhanced to validate block addresses on read/write paths.
But, xfstest/generic/446 compalins some generated kernel messages saying invalid
bitmap was detected when reading a block. The reaons is, when we get the
block addresses from extent_cache, there is no lock to synchronize it from
truncating the blocks in parallel.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2019-04-15 10:26:32 +03:00
|
|
|
if (__is_valid_data_blkaddr(fio->old_blkaddr))
|
|
|
|
verify_blkaddr(sbi, fio->old_blkaddr, __is_meta_io(fio) ?
|
|
|
|
META_GENERIC : DATA_GENERIC);
|
|
|
|
verify_blkaddr(sbi, fio->new_blkaddr, __is_meta_io(fio) ?
|
|
|
|
META_GENERIC : DATA_GENERIC_ENHANCE);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2014-08-06 18:22:50 +04:00
|
|
|
* Summary block is always treated as an invalid block
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
*/
|
2017-12-20 06:16:34 +03:00
|
|
|
static inline int check_block_count(struct f2fs_sb_info *sbi,
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
int segno, struct f2fs_sit_entry *raw_sit)
|
|
|
|
{
|
2013-10-29 10:50:40 +04:00
|
|
|
bool is_valid = test_bit_le(0, raw_sit->valid_map) ? true : false;
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
int valid_blocks = 0;
|
2013-10-29 10:50:40 +04:00
|
|
|
int cur_pos = 0, next_pos;
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
|
|
|
|
/* check bitmap with valid block count */
|
2013-10-29 10:50:40 +04:00
|
|
|
do {
|
|
|
|
if (is_valid) {
|
|
|
|
next_pos = find_next_zero_bit_le(&raw_sit->valid_map,
|
|
|
|
sbi->blocks_per_seg,
|
|
|
|
cur_pos);
|
|
|
|
valid_blocks += next_pos - cur_pos;
|
|
|
|
} else
|
|
|
|
next_pos = find_next_bit_le(&raw_sit->valid_map,
|
|
|
|
sbi->blocks_per_seg,
|
|
|
|
cur_pos);
|
|
|
|
cur_pos = next_pos;
|
|
|
|
is_valid = !is_valid;
|
|
|
|
} while (cur_pos < sbi->blocks_per_seg);
|
2017-12-20 06:16:34 +03:00
|
|
|
|
|
|
|
if (unlikely(GET_SIT_VBLOCKS(raw_sit) != valid_blocks)) {
|
2019-06-18 12:48:42 +03:00
|
|
|
f2fs_err(sbi, "Mismatch valid blocks %d vs. %d",
|
|
|
|
GET_SIT_VBLOCKS(raw_sit), valid_blocks);
|
2017-12-20 06:16:34 +03:00
|
|
|
set_sbi_flag(sbi, SBI_NEED_FSCK);
|
2019-06-20 06:36:14 +03:00
|
|
|
return -EFSCORRUPTED;
|
2017-12-20 06:16:34 +03:00
|
|
|
}
|
f2fs: fix to do sanity check on valid block count of segment
As Jungyeon reported in bugzilla:
https://bugzilla.kernel.org/show_bug.cgi?id=203233
- Overview
When mounting the attached crafted image and running program, following errors are reported.
Additionally, it hangs on sync after running program.
The image is intentionally fuzzed from a normal f2fs image for testing.
Compile options for F2FS are as follows.
CONFIG_F2FS_FS=y
CONFIG_F2FS_STAT_FS=y
CONFIG_F2FS_FS_XATTR=y
CONFIG_F2FS_FS_POSIX_ACL=y
CONFIG_F2FS_CHECK_FS=y
- Reproduces
cc poc_13.c
mkdir test
mount -t f2fs tmp.img test
cp a.out test
cd test
sudo ./a.out
sync
- Kernel messages
F2FS-fs (sdb): Bitmap was wrongly set, blk:4608
kernel BUG at fs/f2fs/segment.c:2102!
RIP: 0010:update_sit_entry+0x394/0x410
Call Trace:
f2fs_allocate_data_block+0x16f/0x660
do_write_page+0x62/0x170
f2fs_do_write_node_page+0x33/0xa0
__write_node_page+0x270/0x4e0
f2fs_sync_node_pages+0x5df/0x670
f2fs_write_checkpoint+0x372/0x1400
f2fs_sync_fs+0xa3/0x130
f2fs_do_sync_file+0x1a6/0x810
do_fsync+0x33/0x60
__x64_sys_fsync+0xb/0x10
do_syscall_64+0x43/0xf0
entry_SYSCALL_64_after_hwframe+0x44/0xa9
sit.vblocks and sum valid block count in sit.valid_map may be
inconsistent, segment w/ zero vblocks will be treated as free
segment, while allocating in free segment, we may allocate a
free block, if its bitmap is valid previously, it can cause
kernel crash due to bitmap verification failure.
Anyway, to avoid further serious metadata inconsistence and
corruption, it is necessary and worth to detect SIT
inconsistence. So let's enable check_block_count() to verify
vblocks and valid_map all the time rather than do it only
CONFIG_F2FS_CHECK_FS is enabled.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2019-04-15 10:30:51 +03:00
|
|
|
|
2015-08-12 02:01:30 +03:00
|
|
|
/* check segment usage, and check boundary of a given segment number */
|
2017-12-20 06:16:34 +03:00
|
|
|
if (unlikely(GET_SIT_VBLOCKS(raw_sit) > sbi->blocks_per_seg
|
|
|
|
|| segno > TOTAL_SEGS(sbi) - 1)) {
|
2019-06-18 12:48:42 +03:00
|
|
|
f2fs_err(sbi, "Wrong valid blocks %d or segno %u",
|
|
|
|
GET_SIT_VBLOCKS(raw_sit), segno);
|
2017-12-20 06:16:34 +03:00
|
|
|
set_sbi_flag(sbi, SBI_NEED_FSCK);
|
2019-06-20 06:36:14 +03:00
|
|
|
return -EFSCORRUPTED;
|
2017-12-20 06:16:34 +03:00
|
|
|
}
|
|
|
|
return 0;
|
2015-07-27 13:17:59 +03:00
|
|
|
}
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
|
|
|
|
static inline pgoff_t current_sit_addr(struct f2fs_sb_info *sbi,
|
|
|
|
unsigned int start)
|
|
|
|
{
|
|
|
|
struct sit_info *sit_i = SIT_I(sbi);
|
2014-09-04 14:11:47 +04:00
|
|
|
unsigned int offset = SIT_BLOCK_OFFSET(start);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
block_t blk_addr = sit_i->sit_base_addr + offset;
|
|
|
|
|
|
|
|
check_seg_range(sbi, start);
|
|
|
|
|
2017-01-07 13:52:34 +03:00
|
|
|
#ifdef CONFIG_F2FS_CHECK_FS
|
|
|
|
if (f2fs_test_bit(offset, sit_i->sit_bitmap) !=
|
|
|
|
f2fs_test_bit(offset, sit_i->sit_bitmap_mir))
|
|
|
|
f2fs_bug_on(sbi, 1);
|
|
|
|
#endif
|
|
|
|
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
/* calculate sit block address */
|
|
|
|
if (f2fs_test_bit(offset, sit_i->sit_bitmap))
|
|
|
|
blk_addr += sit_i->sit_blocks;
|
|
|
|
|
|
|
|
return blk_addr;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline pgoff_t next_sit_addr(struct f2fs_sb_info *sbi,
|
|
|
|
pgoff_t block_addr)
|
|
|
|
{
|
|
|
|
struct sit_info *sit_i = SIT_I(sbi);
|
|
|
|
block_addr -= sit_i->sit_base_addr;
|
|
|
|
if (block_addr < sit_i->sit_blocks)
|
|
|
|
block_addr += sit_i->sit_blocks;
|
|
|
|
else
|
|
|
|
block_addr -= sit_i->sit_blocks;
|
|
|
|
|
|
|
|
return block_addr + sit_i->sit_base_addr;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void set_to_next_sit(struct sit_info *sit_i, unsigned int start)
|
|
|
|
{
|
2014-09-04 14:11:47 +04:00
|
|
|
unsigned int block_off = SIT_BLOCK_OFFSET(start);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
|
2014-10-20 13:45:50 +04:00
|
|
|
f2fs_change_bit(block_off, sit_i->sit_bitmap);
|
2017-01-07 13:52:34 +03:00
|
|
|
#ifdef CONFIG_F2FS_CHECK_FS
|
|
|
|
f2fs_change_bit(block_off, sit_i->sit_bitmap_mir);
|
|
|
|
#endif
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
|
|
|
}
|
|
|
|
|
2018-06-04 18:20:17 +03:00
|
|
|
static inline unsigned long long get_mtime(struct f2fs_sb_info *sbi,
|
|
|
|
bool base_time)
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
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{
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struct sit_info *sit_i = SIT_I(sbi);
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2020-02-26 06:08:16 +03:00
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time64_t diff, now = ktime_get_boottime_seconds();
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2017-05-09 01:59:10 +03:00
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2018-06-04 18:20:17 +03:00
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if (now >= sit_i->mounted_time)
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return sit_i->elapsed_time + now - sit_i->mounted_time;
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/* system time is set to the past */
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if (!base_time) {
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diff = sit_i->mounted_time - now;
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if (sit_i->elapsed_time >= diff)
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return sit_i->elapsed_time - diff;
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return 0;
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}
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return sit_i->elapsed_time;
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 08:37:31 +04:00
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}
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static inline void set_summary(struct f2fs_summary *sum, nid_t nid,
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unsigned int ofs_in_node, unsigned char version)
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{
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sum->nid = cpu_to_le32(nid);
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sum->ofs_in_node = cpu_to_le16(ofs_in_node);
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sum->version = version;
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}
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static inline block_t start_sum_block(struct f2fs_sb_info *sbi)
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{
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return __start_cp_addr(sbi) +
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le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
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}
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static inline block_t sum_blk_addr(struct f2fs_sb_info *sbi, int base, int type)
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{
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return __start_cp_addr(sbi) +
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le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_total_block_count)
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- (base + 1) + type;
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}
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2013-03-31 08:26:03 +04:00
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static inline bool sec_usage_check(struct f2fs_sb_info *sbi, unsigned int secno)
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{
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if (IS_CURSEC(sbi, secno) || (sbi->cur_victim_sec == secno))
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return true;
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return false;
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}
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2013-04-29 11:58:39 +04:00
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2014-03-18 07:40:49 +04:00
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/*
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* It is very important to gather dirty pages and write at once, so that we can
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* submit a big bio without interfering other data writes.
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* By default, 512 pages for directory data,
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2017-02-25 14:32:21 +03:00
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* 512 pages (2MB) * 8 for nodes, and
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* 256 pages * 8 for meta are set.
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2014-03-18 07:40:49 +04:00
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*/
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static inline int nr_pages_to_skip(struct f2fs_sb_info *sbi, int type)
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{
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writeback: move bandwidth related fields from backing_dev_info into bdi_writeback
Currently, a bdi (backing_dev_info) embeds single wb (bdi_writeback)
and the role of the separation is unclear. For cgroup support for
writeback IOs, a bdi will be updated to host multiple wb's where each
wb serves writeback IOs of a different cgroup on the bdi. To achieve
that, a wb should carry all states necessary for servicing writeback
IOs for a cgroup independently.
This patch moves bandwidth related fields from backing_dev_info into
bdi_writeback.
* The moved fields are: bw_time_stamp, dirtied_stamp, written_stamp,
write_bandwidth, avg_write_bandwidth, dirty_ratelimit,
balanced_dirty_ratelimit, completions and dirty_exceeded.
* writeback_chunk_size() and over_bground_thresh() now take @wb
instead of @bdi.
* bdi_writeout_fraction(bdi, ...) -> wb_writeout_fraction(wb, ...)
bdi_dirty_limit(bdi, ...) -> wb_dirty_limit(wb, ...)
bdi_position_ration(bdi, ...) -> wb_position_ratio(wb, ...)
bdi_update_writebandwidth(bdi, ...) -> wb_update_write_bandwidth(wb, ...)
[__]bdi_update_bandwidth(bdi, ...) -> [__]wb_update_bandwidth(wb, ...)
bdi_{max|min}_pause(bdi, ...) -> wb_{max|min}_pause(wb, ...)
bdi_dirty_limits(bdi, ...) -> wb_dirty_limits(wb, ...)
* Init/exits of the relocated fields are moved to bdi_wb_init/exit()
respectively. Note that explicit zeroing is dropped in the process
as wb's are cleared in entirety anyway.
* As there's still only one bdi_writeback per backing_dev_info, all
uses of bdi->stat[] are mechanically replaced with bdi->wb.stat[]
introducing no behavior changes.
v2: Typo in description fixed as suggested by Jan.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2015-05-23 00:13:28 +03:00
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if (sbi->sb->s_bdi->wb.dirty_exceeded)
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2014-11-07 04:23:08 +03:00
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return 0;
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2015-10-08 20:40:07 +03:00
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if (type == DATA)
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return sbi->blocks_per_seg;
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else if (type == NODE)
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2016-06-17 02:44:11 +03:00
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return 8 * sbi->blocks_per_seg;
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2014-03-18 07:40:49 +04:00
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else if (type == META)
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2016-10-18 21:07:45 +03:00
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return 8 * BIO_MAX_PAGES;
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2014-03-18 07:40:49 +04:00
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else
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return 0;
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}
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2014-03-18 08:47:11 +04:00
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/*
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* When writing pages, it'd better align nr_to_write for segment size.
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*/
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static inline long nr_pages_to_write(struct f2fs_sb_info *sbi, int type,
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struct writeback_control *wbc)
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{
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long nr_to_write, desired;
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if (wbc->sync_mode != WB_SYNC_NONE)
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return 0;
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nr_to_write = wbc->nr_to_write;
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2016-10-18 21:07:45 +03:00
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desired = BIO_MAX_PAGES;
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2016-05-26 03:17:56 +03:00
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if (type == NODE)
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2016-10-18 21:07:45 +03:00
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desired <<= 1;
|
2014-03-18 08:47:11 +04:00
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wbc->nr_to_write = desired;
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return desired - nr_to_write;
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}
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2017-08-23 07:15:43 +03:00
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static inline void wake_up_discard_thread(struct f2fs_sb_info *sbi, bool force)
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{
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struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
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bool wakeup = false;
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int i;
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if (force)
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goto wake_up;
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mutex_lock(&dcc->cmd_lock);
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2017-10-04 04:08:34 +03:00
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for (i = MAX_PLIST_NUM - 1; i >= 0; i--) {
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if (i + 1 < dcc->discard_granularity)
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break;
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2017-08-23 07:15:43 +03:00
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if (!list_empty(&dcc->pend_list[i])) {
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wakeup = true;
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break;
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}
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}
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mutex_unlock(&dcc->cmd_lock);
|
2019-01-25 21:26:39 +03:00
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if (!wakeup || !is_idle(sbi, DISCARD_TIME))
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2017-08-23 07:15:43 +03:00
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return;
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wake_up:
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dcc->discard_wake = 1;
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wake_up_interruptible_all(&dcc->discard_wait_queue);
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}
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