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ext4: avoid calling ext4_mark_inode_dirty() under unneeded semaphores

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There is no need to call ext4_mark_inode_dirty while holding xattr_sem
or i_data_sem, so where it's easy to avoid it, move it out from the
critical region.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Theodore Ts'o
2017-01-11 22:14:49 -05:00
parent c755e25135
commit b907f2d519
2 changed files with 4 additions and 7 deletions
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2
fs/ext4/inode.c
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@@ -2464,8 +2464,8 @@ update_disksize:
disksize = i_size;
if (disksize > EXT4_I(inode)->i_disksize)
EXT4_I(inode)->i_disksize = disksize;
err2 = ext4_mark_inode_dirty(handle, inode);
up_write(&EXT4_I(inode)->i_data_sem);
err2 = ext4_mark_inode_dirty(handle, inode);
if (err2)
ext4_error(inode->i_sb,
"Failed to mark inode %lu dirty",