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ext4: add ext4_mb_unload_buddy in the error path
author
Salman Qazi
<sqazi@google.com>
Fri, 1 Jun 2012 03:51:27 +0000
(23:51 -0400)
committer
Theodore Ts'o
<tytso@mit.edu>
Fri, 1 Jun 2012 03:51:27 +0000
(23:51 -0400)
ext4_free_blocks fails to pair an ext4_mb_load_buddy with a matching
ext4_mb_unload_buddy when it fails a memory allocation.
Signed-off-by: Salman Qazi <sqazi@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org
fs/ext4/mballoc.c
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diff --git
a/fs/ext4/mballoc.c
b/fs/ext4/mballoc.c
index
e4b4ac1
..
3d9277c
100644
(file)
--- a/
fs/ext4/mballoc.c
+++ b/
fs/ext4/mballoc.c
@@
-4634,6
+4634,7
@@
do_more:
*/
new_entry = kmem_cache_alloc(ext4_free_data_cachep, GFP_NOFS);
if (!new_entry) {
+ ext4_mb_unload_buddy(&e4b);
err = -ENOMEM;
goto error_return;
}