leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ext4: Fix s_dirty_blocks_counter if block allocation failed with nodelalloc

Browse Source 
With nodelalloc option we need to update the dirty block counter on
block allocation failure. This is needed because we increment the
dirty block counter early in the block allocation phase. Without
the patch s_dirty_blocks_counter goes wrong so that filesystem's
free blocks decreases incorrectly.

Tested-by: Akira Fujita <a-fujita@rs.jp.nec.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org
This commit is contained in:
Aneesh Kumar K.V 2009-01-05 21:49:12 -05:00 committed by Theodore Ts'o
parent 29eaf02498
commit 0087d9fb3f
1 changed files with 8 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
fs/ext4/mballoc.c
View File

@ -4541,7 +4541,7 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
}
if (ar->len == 0) {
*errp = -EDQUOT;
return 0;
goto out3;
}
inquota = ar->len;
@ -4614,6 +4614,13 @@ out2:
out1:
if (ar->len < inquota)
DQUOT_FREE_BLOCK(ar->inode, inquota - ar->len);
out3:
if (!ar->len) {
if (!EXT4_I(ar->inode)->i_delalloc_reserved_flag)
/* release all the reserved blocks if non delalloc */
percpu_counter_sub(&sbi->s_dirtyblocks_counter,
reserv_blks);
}
return block;
}