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WSL2-Linux-Kernel
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ext4: use sbi in ext4_orphan_{add|del}() 

Use sbi pointer consistently in ext4_orphan_del() instead of opencoding
it sometimes. Also ext4_orphan_add() uses EXT4_SB(sb) often so create
sbi variable for it as well and use it.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Jan Kara 2014-05-26 11:39:17 -04:00 коммит произвёл Theodore Ts'o
Родитель 0baaea6400
Коммит cd2c080c33
1 изменённых файлов: 15 добавлений и 16 удалений
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31
fs/ext4/namei.c
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@ -2551,13 +2551,14 @@ static int empty_dir(struct inode *inode)
int ext4_orphan_add(handle_t *handle, struct inode *inode)
{
struct super_block *sb = inode->i_sb;
struct ext4_sb_info *sbi = EXT4_SB(sb);
struct ext4_iloc iloc;
int err = 0, rc;
if (!EXT4_SB(sb)->s_journal)
if (!sbi->s_journal)
return 0;
mutex_lock(&EXT4_SB(sb)->s_orphan_lock);
mutex_lock(&sbi->s_orphan_lock);
if (!list_empty(&EXT4_I(inode)->i_orphan))
goto out_unlock;
@ -2570,8 +2571,8 @@ int ext4_orphan_add(handle_t *handle, struct inode *inode)
J_ASSERT((S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
S_ISLNK(inode->i_mode)) || inode->i_nlink == 0);
BUFFER_TRACE(EXT4_SB(sb)->s_sbh, "get_write_access");
err = ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh);
BUFFER_TRACE(sbi->s_sbh, "get_write_access");
err = ext4_journal_get_write_access(handle, sbi->s_sbh);
if (err)
goto out_unlock;
@ -2583,12 +2584,12 @@ int ext4_orphan_add(handle_t *handle, struct inode *inode)
* orphan list. If so skip on-disk list modification.
*/
if (NEXT_ORPHAN(inode) && NEXT_ORPHAN(inode) <=
(le32_to_cpu(EXT4_SB(sb)->s_es->s_inodes_count)))
(le32_to_cpu(sbi->s_es->s_inodes_count)))
goto mem_insert;
/* Insert this inode at the head of the on-disk orphan list... */
NEXT_ORPHAN(inode) = le32_to_cpu(EXT4_SB(sb)->s_es->s_last_orphan);
EXT4_SB(sb)->s_es->s_last_orphan = cpu_to_le32(inode->i_ino);
NEXT_ORPHAN(inode) = le32_to_cpu(sbi->s_es->s_last_orphan);
sbi->s_es->s_last_orphan = cpu_to_le32(inode->i_ino);
err = ext4_handle_dirty_super(handle, sb);
rc = ext4_mark_iloc_dirty(handle, inode, &iloc);
if (!err)
@ -2604,14 +2605,14 @@ int ext4_orphan_add(handle_t *handle, struct inode *inode)
* anyway on the next recovery. */
mem_insert:
if (!err)
list_add(&EXT4_I(inode)->i_orphan, &EXT4_SB(sb)->s_orphan);
list_add(&EXT4_I(inode)->i_orphan, &sbi->s_orphan);
jbd_debug(4, "superblock will point to %lu\n", inode->i_ino);
jbd_debug(4, "orphan inode %lu will point to %d\n",
inode->i_ino, NEXT_ORPHAN(inode));
out_unlock:
mutex_unlock(&EXT4_SB(sb)->s_orphan_lock);
ext4_std_error(inode->i_sb, err);
mutex_unlock(&sbi->s_orphan_lock);
ext4_std_error(sb, err);
return err;
}
@ -2623,22 +2624,20 @@ int ext4_orphan_del(handle_t *handle, struct inode *inode)
{
struct list_head *prev;
struct ext4_inode_info *ei = EXT4_I(inode);
struct ext4_sb_info *sbi;
struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
__u32 ino_next;
struct ext4_iloc iloc;
int err = 0;
if ((!EXT4_SB(inode->i_sb)->s_journal) &&
!(EXT4_SB(inode->i_sb)->s_mount_state & EXT4_ORPHAN_FS))
if (!sbi->s_journal && !(sbi->s_mount_state & EXT4_ORPHAN_FS))
return 0;
mutex_lock(&EXT4_SB(inode->i_sb)->s_orphan_lock);
mutex_lock(&sbi->s_orphan_lock);
if (list_empty(&ei->i_orphan))
goto out;
ino_next = NEXT_ORPHAN(inode);
prev = ei->i_orphan.prev;
sbi = EXT4_SB(inode->i_sb);
jbd_debug(4, "remove inode %lu from orphan list\n", inode->i_ino);
@ -2684,7 +2683,7 @@ int ext4_orphan_del(handle_t *handle, struct inode *inode)
out_err:
ext4_std_error(inode->i_sb, err);
out:
mutex_unlock(&EXT4_SB(inode->i_sb)->s_orphan_lock);
mutex_unlock(&sbi->s_orphan_lock);
return err;
out_brelse: