lkml.org 
[lkml]   [2008]   [Jul]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 16/52] ext4: remove quota allocation when ext4_mb_new_blocks fails
Date
From: Shen Feng <shen@cn.fujitsu.com>

Quota allocation is not removed when ext4_mb_new_blocks calls
kmem_cache_alloc failed. Also make sure the allocation context is freed
on the error path.

Signed-off-by: Shen Feng <shen@cn.fujitsu.com>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
fs/ext4/mballoc.c | 10 ++++++----
1 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 11acfe5..8b67414 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4052,8 +4052,9 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,

ac = kmem_cache_alloc(ext4_ac_cachep, GFP_NOFS);
if (!ac) {
+ ar->len = 0;
*errp = -ENOMEM;
- return 0;
+ goto out1;
}

ext4_mb_poll_new_transaction(sb, handle);
@@ -4061,7 +4062,7 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
*errp = ext4_mb_initialize_context(ac, ar);
if (*errp) {
ar->len = 0;
- goto out;
+ goto out2;
}

ac->ac_op = EXT4_MB_HISTORY_PREALLOC;
@@ -4109,11 +4110,12 @@ repeat:

ext4_mb_release_context(ac);

-out:
+out2:
+ kmem_cache_free(ext4_ac_cachep, ac);
+out1:
if (ar->len < inquota)
DQUOT_FREE_BLOCK(ar->inode, inquota - ar->len);

- kmem_cache_free(ext4_ac_cachep, ac);
return block;
}
static void ext4_mb_poll_new_transaction(struct super_block *sb,
--
1.5.6.rc3.1.g36b7.dirty


\
 
 \ /
  Last update: 2008-07-05 19:53    [from the cache]
©2003-2011 Jasper Spaans