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WSL2-Linux-Kernel
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WSL2-Linux-Kernel/fs/xfs
История
Brian Foster 8a62714313 xfs: fix unmount hang and memory leak on shutdown during quotaoff 
AIL removal of the quotaoff start intent and free of both quotaoff
intents is currently limited to the ->iop_committed() handler of the
end intent. This executes when the end intent is committed to the
on-disk log and marks the completion of the operation. The problem
with this is it assumes the success of the operation. If a shutdown
or other error occurs during the quotaoff, it's possible for the
quotaoff task to exit without removing the start intent from the
AIL. This results in an unmount hang as the AIL cannot be emptied.
Further, no other codepath frees the intents and so this is also a
memory leak vector.

First, update the high level quotaoff error path to directly remove
and free the quotaoff start intent if it still exists in the AIL at
the time of the error. Next, update both of the start and end
quotaoff intents with an ->iop_release() callback to properly handle
transaction abort.

This means that If the quotaoff start transaction aborts, it frees
the start intent in the transaction commit path. If the filesystem
shuts down before the end transaction allocates, the quotaoff
sequence removes and frees the start intent. If the end transaction
aborts, it removes the start intent and frees both. This ensures
that a shutdown does not result in a hung unmount and that memory is
not leaked regardless of when a quotaoff error occurs.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
 		2020-03-18 08:12:23 -07:00
..
libxfs xfs: add support for rmap btree staging cursors 2020-03-18 08:12:23 -07:00
scrub xfs: replace open-coded bitmap weight logic 2020-03-18 08:12:23 -07:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile xfs: introduce fake roots for ag-rooted btrees 2020-03-18 08:12:23 -07:00
kmem.c xfs: Correct comment tyops -> typos 2019-11-10 10:21:57 -08:00
kmem.h xfs: Remove kmem_zone_free() wrapper 2019-11-18 08:40:44 -08:00
mrlock.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs.h xfs: remove b_last_holder & associated macros 2018-08-12 08:37:31 -07:00
xfs_acl.c xfs: only allocate the buffer size actually needed in __xfs_set_acl 2020-03-02 20:55:55 -08:00
xfs_acl.h xfs: improve xfs_forget_acl 2020-03-02 20:55:55 -08:00
xfs_aops.c xfs: ratelimit xfs_discard_page messages 2020-03-02 20:55:51 -08:00
xfs_aops.h xfs: add a xfs_inode_buftarg helper 2019-10-28 08:37:54 -07:00
xfs_attr_inactive.c xfs: add a function to deal with corrupt buffers post-verifiers 2020-03-12 07:58:12 -07:00
xfs_attr_list.c xfs: add a function to deal with corrupt buffers post-verifiers 2020-03-12 07:58:12 -07:00
xfs_bio_io.c xfs: chain bios the right way around in xfs_rw_bdev 2019-07-10 10:04:16 -07:00
xfs_bmap_item.c xfs: Remove kmem_zone_free() wrapper 2019-11-18 08:40:44 -08:00
xfs_bmap_item.h xfs: merge xfs_bud_init into xfs_trans_get_bud 2019-06-28 19:27:36 -07:00
xfs_bmap_util.c xfs: rework collapse range into an atomic operation 2020-03-02 20:55:51 -08:00
xfs_bmap_util.h xfs: simplify xfs_iomap_eof_align_last_fsb 2019-11-03 10:22:30 -08:00
xfs_buf.c xfs: xfs_buf_corruption_error should take __this_address 2020-03-12 07:58:12 -07:00
xfs_buf.h xfs: add a function to deal with corrupt buffers post-verifiers 2020-03-12 07:58:12 -07:00
xfs_buf_item.c xfs: fix xfs_buf_ioerror_alert location reporting 2020-01-26 14:32:27 -08:00
xfs_buf_item.h xfs: check log iovec size to make sure it's plausibly a buffer log format 2020-01-16 08:07:24 -08:00
xfs_dir2_readdir.c xfs: fix regression in "cleanup xfs_dir2_block_getdents" 2020-03-13 10:37:13 -07:00
xfs_discard.c xfs: remove XFS_BUF_TO_AGF 2020-03-11 09:11:39 -07:00
xfs_discard.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xfs_dquot.c xfs: remove the kuid/kgid conversion wrappers 2020-03-02 20:55:50 -08:00
xfs_dquot.h xfs: remove the xfs_dq_logitem_t typedef 2019-11-13 18:22:26 -08:00
xfs_dquot_item.c xfs: fix unmount hang and memory leak on shutdown during quotaoff 2020-03-18 08:12:23 -07:00
xfs_dquot_item.h xfs: factor out quotaoff intent AIL removal and memory free 2020-03-18 08:12:23 -07:00
xfs_error.c xfs: xfs_buf_corruption_error should take __this_address 2020-03-12 07:58:12 -07:00
xfs_error.h xfs: xfs_buf_corruption_error should take __this_address 2020-03-12 07:58:12 -07:00
xfs_export.c xfs: remove unused header files 2019-06-28 19:30:43 -07:00
xfs_export.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_extent_busy.c xfs: cleanup use of the XFS_ALLOC_ flags 2019-11-03 10:22:31 -08:00
xfs_extent_busy.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_extfree_item.c xfs: Remove kmem_zone_free() wrapper 2019-11-18 08:40:44 -08:00
xfs_extfree_item.h xfs: merge xfs_efd_init into xfs_trans_get_efd 2019-06-28 19:27:35 -07:00
xfs_file.c xfs: fix IOCB_NOWAIT handling in xfs_file_dio_aio_read 2020-01-15 22:13:11 -08:00
xfs_filestream.c xfs: make xfs_*read_agf return EAGAIN to ALLOC_FLAG_TRYLOCK callers 2020-01-26 14:32:26 -08:00
xfs_filestream.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_fsmap.c xfs: convert btree cursor ag-private member name 2020-03-13 10:37:14 -07:00
xfs_fsmap.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_fsops.c xfs: remove unused header files 2019-06-28 19:30:43 -07:00
xfs_fsops.h xfs: change some error-less functions to void types 2019-05-01 20:26:30 -07:00
xfs_globals.c xfs: multithreaded iwalk implementation 2019-07-03 07:33:26 -07:00
xfs_health.c xfs: introduce new v5 bulkstat structure 2019-07-03 20:36:26 -07:00
xfs_icache.c xfs: ensure that the inode uid/gid match values match the icdinode ones 2020-03-02 20:55:50 -08:00
xfs_icache.h xfs: rename the speculative block allocation reclaim toggle functions 2019-04-26 12:28:55 -07:00
xfs_icreate_item.c xfs: Remove kmem_zone_free() wrapper 2019-11-18 08:40:44 -08:00
xfs_icreate_item.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_inode.c xfs: add a function to deal with corrupt buffers post-verifiers 2020-03-12 07:58:12 -07:00
xfs_inode.h xfs: merge the projid fields in struct xfs_icdinode 2019-11-13 11:13:45 -08:00
xfs_inode_item.c xfs: remove the kuid/kgid conversion wrappers 2020-03-02 20:55:50 -08:00
xfs_inode_item.h xfs: remove the xfs_log_item_t typedef 2019-06-28 19:27:33 -07:00
xfs_ioctl.c xfs: switch xfs_attrmulti_attr_get to lazy attr buffer allocation 2020-03-02 20:55:55 -08:00
xfs_ioctl.h xfs: embedded the attrlist cursor into struct xfs_attr_list_context 2020-03-02 20:55:55 -08:00
xfs_ioctl32.c xfs: lift cursor copy in/out into xfs_ioc_attr_list 2020-03-02 20:55:54 -08:00
xfs_ioctl32.h xfs: rename compat_time_t to old_time32_t 2020-01-06 08:57:36 -08:00
xfs_iomap.c xfs: change return value of xfs_inode_need_cow to int 2020-01-20 14:34:47 -08:00
xfs_iomap.h xfs: simplify the xfs_iomap_write_direct calling 2019-11-03 10:22:30 -08:00
xfs_iops.c xfs: clean up the attr flag confusion 2020-03-02 20:55:55 -08:00
xfs_iops.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_itable.c xfs: remove the kuid/kgid conversion wrappers 2020-03-02 20:55:50 -08:00
xfs_itable.h xfs: remove all *_ITER_ABORT values 2019-08-29 21:22:41 -07:00
xfs_iwalk.c xfs: kill the XFS_WANT_CORRUPT_* macros 2019-11-12 17:19:02 -08:00
xfs_iwalk.h xfs: remove all *_ITER_CONTINUE values 2019-08-30 22:43:56 -07:00
xfs_linux.h xfs: clean up the attr flag confusion 2020-03-02 20:55:55 -08:00
xfs_log.c xfs: cleanup xfs_log_unmount_write 2020-03-13 10:37:15 -07:00
xfs_log.h fs: xfs: xfs_log: Change return type from int to void 2019-07-03 08:21:58 -07:00
xfs_log_cil.c xfs: Correct comment tyops -> typos 2019-11-10 10:21:57 -08:00
xfs_log_priv.h xfs: remove the unused XLOG_UNMOUNT_REC_TYPE define 2020-03-13 10:37:15 -07:00
xfs_log_recover.c xfs: remove XFS_BUF_TO_SBP 2020-03-11 09:11:39 -07:00
xfs_message.c xfs: make the assertion message functions take a mount parameter 2019-11-05 08:28:27 -08:00
xfs_message.h xfs: make the assertion message functions take a mount parameter 2019-11-05 08:28:27 -08:00
xfs_mount.c xfs: remove XFS_BUF_TO_SBP 2020-03-11 09:11:39 -07:00
xfs_mount.h xfs: remove unused structure members & simple typedefs 2019-11-13 18:22:41 -08:00
xfs_mru_cache.c fs: xfs: Remove KM_NOSLEEP and KM_SLEEP. 2019-08-26 12:06:22 -07:00
xfs_mru_cache.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_ondisk.h xfs: make struct xfs_buf_log_format have a consistent size 2020-01-16 08:07:23 -08:00
xfs_pnfs.c xfs: use super s_id instead of struct xfs_mount m_fsname 2019-11-05 08:28:25 -08:00
xfs_pnfs.h xfs: prepare xfs_break_layouts() for another layout type 2018-05-22 07:19:08 -07:00
xfs_pwork.c xfs: poll waiting for quotacheck 2019-07-03 08:21:58 -07:00
xfs_pwork.h xfs: poll waiting for quotacheck 2019-07-03 08:21:58 -07:00
xfs_qm.c xfs: remove the kuid/kgid conversion wrappers 2020-03-02 20:55:50 -08:00
xfs_qm.h xfs: quota: move to time64_t interfaces 2020-01-06 08:57:37 -08:00
xfs_qm_bhv.c xfs: remove the xfs_disk_dquot_t and xfs_dquot_t 2019-11-13 11:13:45 -08:00
xfs_qm_syscalls.c xfs: fix unmount hang and memory leak on shutdown during quotaoff 2020-03-18 08:12:23 -07:00
xfs_quota.h xfs: remove the icdinode di_uid/di_gid members 2020-03-02 20:55:50 -08:00
xfs_quotaops.c xfs: quota: move to time64_t interfaces 2020-01-06 08:57:37 -08:00
xfs_refcount_item.c xfs: Remove kmem_zone_free() wrapper 2019-11-18 08:40:44 -08:00
xfs_refcount_item.h xfs: merge xfs_cud_init into xfs_trans_get_cud 2019-06-28 19:27:35 -07:00
xfs_reflink.c xfs: remove unnecessary null pointer checks from _read_agf callers 2020-01-26 14:32:27 -08:00
xfs_reflink.h xfs: change return value of xfs_inode_need_cow to int 2020-01-20 14:34:47 -08:00
xfs_rmap_item.c xfs: Remove kmem_zone_free() wrapper 2019-11-18 08:40:44 -08:00
xfs_rmap_item.h xfs: merge xfs_rud_init into xfs_trans_get_rud 2019-06-28 19:27:36 -07:00
xfs_rtalloc.c xfs: make xfs_trans_get_buf return an error code 2020-01-26 14:32:26 -08:00
xfs_rtalloc.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_stats.c xfs: Use scnprintf() for avoiding potential buffer overflow 2020-03-12 07:58:13 -07:00
xfs_stats.h xfs: use offsetof() in place of offset macros for __xfsstats 2018-10-18 17:21:39 +11:00
xfs_super.c Merge branch 'merge.nfs-fs_parse.1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-02-08 13:26:41 -08:00
xfs_super.h xfs: include QUOTA, FATAL ASSERT build options in XFS_BUILD_OPTIONS 2019-10-21 09:04:57 -07:00
xfs_symlink.c xfs: remove the icdinode di_uid/di_gid members 2020-03-02 20:55:50 -08:00
xfs_symlink.h xfs: Correct comment tyops -> typos 2019-11-10 10:21:57 -08:00
xfs_sysctl.c xfs: remove unused header files 2019-06-28 19:30:43 -07:00
xfs_sysctl.h xfs: multithreaded iwalk implementation 2019-07-03 07:33:26 -07:00
xfs_sysfs.c xfs: avoid unused to_mp() function warning 2019-09-24 09:40:19 -07:00
xfs_sysfs.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_trace.c xfs: support bulk loading of staged btrees 2020-03-18 08:12:23 -07:00
xfs_trace.h xfs: support bulk loading of staged btrees 2020-03-18 08:12:23 -07:00
xfs_trans.c xfs: remove XFS_BUF_TO_SBP 2020-03-11 09:11:39 -07:00
xfs_trans.h xfs: make xfs_trans_get_buf return an error code 2020-01-26 14:32:26 -08:00
xfs_trans_ail.c xfs: clear PF_MEMALLOC before exiting xfsaild thread 2020-03-11 09:11:38 -07:00
xfs_trans_buf.c xfs: fix xfs_buf_ioerror_alert location reporting 2020-01-26 14:32:27 -08:00
xfs_trans_dquot.c xfs: quota: move to time64_t interfaces 2020-01-06 08:57:37 -08:00
xfs_trans_priv.h xfs: don't use xfs_trans_free_items in the commit path 2019-06-28 19:27:31 -07:00
xfs_xattr.c xfs: embedded the attrlist cursor into struct xfs_attr_list_context 2020-03-02 20:55:55 -08:00