diff options
| author |  Ming Lei <ming.lei@redhat.com>
| 2022-04-12 16:56:14 +0800 |
|---|---|---|
| committer |  Mike Snitzer <snitzer@kernel.org>
| 2022-05-05 17:31:36 -0400 |
| commit | 2e803cd99ba8b7a84be155c1d5ee28d363fdbe44 (patch) | |
| tree | 2255fec7acdf7812b8b30c16928afca2ac4286a7 /drivers/md/dm-zone.c | |
| parent | dm: improve bio splitting and associated IO accounting (diff) | |
| download | linux-2e803cd99ba8b7a84be155c1d5ee28d363fdbe44.tar.gz linux-2e803cd99ba8b7a84be155c1d5ee28d363fdbe44.tar.bz2 linux-2e803cd99ba8b7a84be155c1d5ee28d363fdbe44.zip | |
dm: don't grab target io reference in dm_zone_map_bio
dm_zone_map_bio() is only called from __map_bio in which the io's
reference is grabbed already, and the reference won't be released
until the bio is submitted, so not necessary to do it dm_zone_map_bio
any more.
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Diffstat (limited to 'drivers/md/dm-zone.c')
| -rw-r--r-- | drivers/md/dm-zone.c | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/drivers/md/dm-zone.c b/drivers/md/dm-zone.c index 57daa86c19cf..3e7b1fe1580b 100644 --- a/drivers/md/dm-zone.c +++ b/drivers/md/dm-zone.c @@ -550,13 +550,6 @@ int dm_zone_map_bio(struct dm_target_io *tio) return DM_MAPIO_KILL; } - /* - * The target map function may issue and complete the IO quickly. - * Take an extra reference on the IO to make sure it does disappear - * until we run dm_zone_map_bio_end(). - */ - dm_io_inc_pending(io); - /* Let the target do its work */ r = ti->type->map(ti, clone); switch (r) { @@ -587,9 +580,6 @@ int dm_zone_map_bio(struct dm_target_io *tio) break; } - /* Drop the extra reference on the IO */ - dm_io_dec_pending(io, sts); - if (sts != BLK_STS_OK) return DM_MAPIO_KILL; |