This is a note to let you know that I've just added the patch titled
dm cache: fix writethrough mode quiescing in cache_map
to the 3.14-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:
dm-cache-fix-writethrough-mode-quiescing-in-cache_map.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 131cd131a9ff63d4b84f3fe15073a2984ac30066 Mon Sep 17 00:00:00 2001
From: Mike Snitzer <snitzer@xxxxxxxxxx>
Date: Thu, 1 May 2014 16:14:24 -0400
Subject: dm cache: fix writethrough mode quiescing in cache_map
From: Mike Snitzer <snitzer@xxxxxxxxxx>
commit 131cd131a9ff63d4b84f3fe15073a2984ac30066 upstream.
Commit 2ee57d58735 ("dm cache: add passthrough mode") inadvertently
removed the deferred set reference that was taken in cache_map()'s
writethrough mode support. Restore taking this reference.
This issue was found with code inspection.
Signed-off-by: Mike Snitzer <snitzer@xxxxxxxxxx>
Acked-by: Joe Thornber <ejt@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/md/dm-cache-target.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -2506,6 +2506,7 @@ static int cache_map(struct dm_target *t
} else {
inc_hit_counter(cache, bio);
+ pb->all_io_entry = dm_deferred_entry_inc(cache->all_io_ds);
if (bio_data_dir(bio) == WRITE && writethrough_mode(&cache->features) &&
!is_dirty(cache, lookup_result.cblock))
Patches currently in stable-queue which might be from snitzer@xxxxxxxxxx are
queue-3.14/dm-verity-fix-biovecs-hash-calculation-regression.patch
queue-3.14/dm-cache-fix-writethrough-mode-quiescing-in-cache_map.patch
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