This is a note to let you know that I've just added the patch titled
ext4: fix FITRIM in no journal mode
to the 3.12-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-fitrim-in-no-journal-mode.patch
and it can be found in the queue-3.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 8f9ff189205a6817aee5a1f996f876541f86e07c Mon Sep 17 00:00:00 2001
From: Lukas Czerner <lczerner@xxxxxxxxxx>
Date: Wed, 30 Oct 2013 11:10:52 -0400
Subject: ext4: fix FITRIM in no journal mode
From: Lukas Czerner <lczerner@xxxxxxxxxx>
commit 8f9ff189205a6817aee5a1f996f876541f86e07c upstream.
When using FITRIM ioctl on a file system without journal it will
only trim the block group once, no matter how many times you invoke
FITRIM ioctl and how many block you release from the block group.
It is because we only clear EXT4_GROUP_INFO_WAS_TRIMMED_BIT in journal
callback. Fix this by clearing the bit in no journal mode as well.
Signed-off-by: Lukas Czerner <lczerner@xxxxxxxxxx>
Signed-off-by: "Theodore Ts'o" <tytso@xxxxxxx>
Reported-by: Jorge Fábregas <jorge.fabregas@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/ext4/mballoc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4799,8 +4799,8 @@ do_more:
" group:%d block:%d count:%lu failed"
" with %d", block_group, bit, count,
err);
- }
-
+ } else
+ EXT4_MB_GRP_CLEAR_TRIMMED(e4b.bd_info);
ext4_lock_group(sb, block_group);
mb_clear_bits(bitmap_bh->b_data, bit, count_clusters);
Patches currently in stable-queue which might be from lczerner@xxxxxxxxxx are
queue-3.12/ext4-check-for-overlapping-extents-in-ext4_valid_extent_entries.patch
queue-3.12/ext4-fix-fitrim-in-no-journal-mode.patch
queue-3.12/ext4-do-not-reserve-clusters-when-fs-doesn-t-support-extents.patch
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