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| author | Mike Snitzer <snitzer@kernel.org> | 2023-04-14 19:07:27 +0300 |
|---|---|---|
| committer | Mike Snitzer <snitzer@kernel.org> | 2023-04-14 19:07:27 +0300 |
| commit | 13f6facf3faeed34ca381aef4c9b153c7aed3972 (patch) | |
| tree | 5b178e7ae69f1c9b7c10e91fa20c1acfaee0631a /drivers/md | |
| parent | 3664ff82dae1ef9f14f7763d3dd30565e7ef9e14 (diff) | |
| download | linux-13f6facf3faeed34ca381aef4c9b153c7aed3972.tar.xz | |
dm: allow targets to require splitting WRITE_ZEROES and SECURE_ERASE
Introduce max_write_zeroes_granularity and
max_secure_erase_granularity flags in the dm_target struct.
If a target sets these then DM core will split IO of these operation
types accordingly (in terms of max_write_zeroes_sectors and
max_secure_erase_sectors respectively).
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/dm.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 20c6b72a0245..244ebb8c316b 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1614,21 +1614,23 @@ static blk_status_t __process_abnormal_io(struct clone_info *ci, { unsigned int num_bios = 0; unsigned int max_granularity = 0; + struct queue_limits *limits = dm_get_queue_limits(ti->table->md); switch (bio_op(ci->bio)) { case REQ_OP_DISCARD: num_bios = ti->num_discard_bios; - if (ti->max_discard_granularity) { - struct queue_limits *limits = - dm_get_queue_limits(ti->table->md); + if (ti->max_discard_granularity) max_granularity = limits->max_discard_sectors; - } break; case REQ_OP_SECURE_ERASE: num_bios = ti->num_secure_erase_bios; + if (ti->max_secure_erase_granularity) + max_granularity = limits->max_secure_erase_sectors; break; case REQ_OP_WRITE_ZEROES: num_bios = ti->num_write_zeroes_bios; + if (ti->max_write_zeroes_granularity) + max_granularity = limits->max_write_zeroes_sectors; break; default: break; |