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authorSalman Qazi <sqazi@google.com>2012-05-31 23:51:27 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-06-10 00:33:04 +0900
commit97434cf53353728708c133af183a11a158c8c26a (patch)
treea4d054ee5c9c0969a2e9c086b8d192af06c8549b
parenteeb7cb57cf619ae9ab8210b21b49820ed40a472f (diff)
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ext4: add ext4_mb_unload_buddy in the error path
commit 02b7831019ea4e7994968c84b5826fa8b248ffc8 upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--fs/ext4/mballoc.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 0f1be7f1637..e3d55756997 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4583,6 +4583,7 @@ do_more:
*/
new_entry = kmem_cache_alloc(ext4_free_ext_cachep, GFP_NOFS);
if (!new_entry) {
+ ext4_mb_unload_buddy(&e4b);
err = -ENOMEM;
goto error_return;
}