linux-stable.git/drivers/md/dm-cache-target.c, branch linux-6.2.y

dm: change "unsigned" to "unsigned int"

2023-04-13T15:02:34+00:00

[ Upstream commit 86a3238c7b9b759cb864f4f768ab2e24687dc0e6 ]

Signed-off-by: Heinz Mauelshagen 
Signed-off-by: Mike Snitzer 
Stable-dep-of: f7b58a69fad9 ("dm: fix improper splitting for abnormal bios")
Signed-off-by: Sasha Levin

dm cache: add cond_resched() to various workqueue loops

2023-03-10T08:29:21+00:00

[ Upstream commit 76227f6dc805e9e960128bcc6276647361e0827c ]

Otherwise on resource constrained systems these workqueues may be too
greedy.

Signed-off-by: Mike Snitzer 
Signed-off-by: Sasha Levin

dm cache: set needs_check flag after aborting metadata

2022-12-01T16:43:41+00:00

Otherwise the commit that will be aborted will be associated with the
metadata objects that will be torn down.  Must write needs_check flag
to metadata with a reset block manager.

Found through code-inspection (and compared against dm-thin.c).

Cc: stable@vger.kernel.org
Fixes: 028ae9f76f29 ("dm cache: add fail io mode and needs_check flag")
Signed-off-by: Mike Snitzer

dm cache: Fix UAF in destroy()

2022-11-30T18:29:34+00:00

Dm_cache also has the same UAF problem when dm_resume()
and dm_destroy() are concurrent.

Therefore, cancelling timer again in destroy().

Cc: stable@vger.kernel.org
Fixes: c6b4fcbad044e ("dm: add cache target")
Signed-off-by: Luo Meng 
Signed-off-by: Mike Snitzer

dm cache: fix typo in 2 comment blocks

2022-07-07T15:49:37+00:00

Replace neccessarily with necessarily.

Signed-off-by: Steven Lung <1030steven@gmail.com>
Signed-off-by: Mike Snitzer

block: remove QUEUE_FLAG_DISCARD

2022-04-18T01:49:59+00:00

Just use a non-zero max_discard_sectors as an indicator for discard
support, similar to what is done for write zeroes.

The only places where needs special attention is the RAID5 driver,
which must clear discard support for security reasons by default,
even if the default stacking rules would allow for it.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Martin K. Petersen 
Acked-by: Christoph Böhmwalder  [drbd]
Acked-by: Jan Höppner  [s390]
Acked-by: Coly Li  [bcache]
Acked-by: David Sterba  [btrfs]
Reviewed-by: Chaitanya Kulkarni 
Link: https://lore.kernel.org/r/20220415045258.199825-25-hch@lst.de
Signed-off-by: Jens Axboe

dm cache: use dm_submit_bio_remap

2022-03-10T18:44:57+00:00

Signed-off-by: Mike Snitzer

dm: stop using bdevname

2022-03-02T17:15:54+00:00

Just use the %pg format specifier instead.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Damien Le Moal 
Signed-off-by: Mike Snitzer

block: pass a block_device to bio_clone_fast

2022-02-04T14:43:18+00:00

Pass a block_device to bio_clone_fast and __bio_clone_fast and give
the functions more suitable names.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Mike Snitzer 
Link: https://lore.kernel.org/r/20220202160109.108149-14-hch@lst.de
Signed-off-by: Jens Axboe

dm-cache: remove __remap_to_origin_clear_discard

2022-02-04T14:43:18+00:00

Fold __remap_to_origin_clear_discard into the two callers to prepare
for bio cloning refactoring.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Mike Snitzer 
Link: https://lore.kernel.org/r/20220202160109.108149-10-hch@lst.de
Signed-off-by: Jens Axboe