This is a note to let you know that I've just added the patch titled
ext4: fix wrong assert in ext4_mb_normalize_request()
to the 3.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ext4-fix-wrong-assert-in-ext4_mb_normalize_request.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b5b60778558cafad17bbcbf63e0310bd3c68eb17 Mon Sep 17 00:00:00 2001
From: Maurizio Lombardi <mlombard@xxxxxxxxxx>
Date: Tue, 27 May 2014 12:48:56 -0400
Subject: ext4: fix wrong assert in ext4_mb_normalize_request()
From: Maurizio Lombardi <mlombard@xxxxxxxxxx>
commit b5b60778558cafad17bbcbf63e0310bd3c68eb17 upstream.
The variable "size" is expressed as number of blocks and not as
number of clusters, this could trigger a kernel panic when using
ext4 with the size of a cluster different from the size of a block.
Signed-off-by: Maurizio Lombardi <mlombard@xxxxxxxxxx>
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/ext4/mballoc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -3116,7 +3116,7 @@ ext4_mb_normalize_request(struct ext4_al
}
BUG_ON(start + size <= ac->ac_o_ex.fe_logical &&
start > ac->ac_o_ex.fe_logical);
- BUG_ON(size <= 0 || size > EXT4_CLUSTERS_PER_GROUP(ac->ac_sb));
+ BUG_ON(size <= 0 || size > EXT4_BLOCKS_PER_GROUP(ac->ac_sb));
/* now prepare goal request */
Patches currently in stable-queue which might be from mlombard@xxxxxxxxxx are
queue-3.10/ext4-fix-wrong-assert-in-ext4_mb_normalize_request.patch
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