diff options
Diffstat (limited to 'dm-cache-fix-spurious-cell_defer-when-dealing-with-p.patch')
| -rw-r--r-- | dm-cache-fix-spurious-cell_defer-when-dealing-with-p.patch | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/dm-cache-fix-spurious-cell_defer-when-dealing-with-p.patch b/dm-cache-fix-spurious-cell_defer-when-dealing-with-p.patch deleted file mode 100644 index 05a6ebdca..000000000 --- a/dm-cache-fix-spurious-cell_defer-when-dealing-with-p.patch +++ /dev/null @@ -1,40 +0,0 @@ -From: Joe Thornber <ejt@redhat.com> -Date: Fri, 28 Nov 2014 09:48:25 +0000 -Subject: [PATCH] dm cache: fix spurious cell_defer when dealing with partial - block at end of device - -We never bother caching a partial block that is at the back end of the -origin device. No cell ever gets locked, but the calling code was -assuming it was and trying to release it. - -Now the code only releases if the cell has been set to a non NULL -value. - -Signed-off-by: Joe Thornber <ejt@redhat.com> -Signed-off-by: Mike Snitzer <snitzer@redhat.com> -Cc: stable@vger.kernel.org ---- - drivers/md/dm-cache-target.c | 4 ++-- - 1 file changed, 2 insertions(+), 2 deletions(-) - -diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c -index 387b93d81138..da496cfb458d 100644 ---- a/drivers/md/dm-cache-target.c -+++ b/drivers/md/dm-cache-target.c -@@ -2554,11 +2554,11 @@ static int __cache_map(struct cache *cache, struct bio *bio, struct dm_bio_priso - static int cache_map(struct dm_target *ti, struct bio *bio) - { - int r; -- struct dm_bio_prison_cell *cell; -+ struct dm_bio_prison_cell *cell = NULL; - struct cache *cache = ti->private; - - r = __cache_map(cache, bio, &cell); -- if (r == DM_MAPIO_REMAPPED) { -+ if (r == DM_MAPIO_REMAPPED && cell) { - inc_ds(cache, bio, cell); - cell_defer(cache, cell, false); - } --- -2.1.0 - |