This is a note to let you know that I've just added the patch titled
ext4: fix trimming of a single group
to the 2.6.37-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-trimming-of-a-single-group.patch
and it can be found in the queue-2.6.37 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From ca6e909f9bebe709bc65a3ee605ce32969db0452 Mon Sep 17 00:00:00 2001
From: Jan Kara <[email protected]>
Date: Mon, 10 Jan 2011 12:30:39 -0500
Subject: ext4: fix trimming of a single group
From: Jan Kara <[email protected]>
commit ca6e909f9bebe709bc65a3ee605ce32969db0452 upstream.
When ext4_trim_fs() is called to trim a part of a single group, the
logic will wrongly set last block of the interval to 'len' instead
of 'first_block + len'. Thus a shorter interval is possibly trimmed.
Fix it.
CC: Lukas Czerner <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: "Theodore Ts'o" <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
fs/ext4/mballoc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4851,7 +4851,7 @@ int ext4_trim_fs(struct super_block *sb,
if (len >= EXT4_BLOCKS_PER_GROUP(sb))
len -= (EXT4_BLOCKS_PER_GROUP(sb) - first_block);
else
- last_block = len;
+ last_block = first_block + len;
if (e4b.bd_info->bb_free >= minlen) {
cnt = ext4_trim_all_free(sb, &e4b, first_block,
Patches currently in stable-queue which might be from [email protected] are
queue-2.6.37/writeback-stop-background-kupdate-works-from-livelocking-other-works.patch
queue-2.6.37/ext4-fix-trimming-of-a-single-group.patch
queue-2.6.37/writeback-avoid-livelocking-wb_sync_all-writeback.patch
queue-2.6.37/writeback-integrated-background-writeback-work.patch
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