diff options
| author | Mikulas Patocka <mpatocka@redhat.com> | 2023-04-04 18:14:26 +0300 |
|---|---|---|
| committer | Mike Snitzer <snitzer@kernel.org> | 2023-04-04 20:30:17 +0300 |
| commit | 85c938e8914f8f0e276b8e82d4f2e4bcab044e96 (patch) | |
| tree | b136252fc9a78356eb548cdb402e947d1591964d /drivers | |
| parent | 074c44664f60f62ef932eae9ee89d663563cf307 (diff) | |
| download | linux-85c938e8914f8f0e276b8e82d4f2e4bcab044e96.tar.xz | |
dm table: allow targets without devices to set ->io_hints
In dm_calculate_queue_limits, add call to ->io_hints hook if the
target doesn't provide ->iterate_devices.
This is needed so the "error" and "zero" targets may support
discards. The 2 following commits will add their respective discard
support.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Tested-by: Milan Broz <gmazyland@gmail.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/dm-table.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index 2055a758541d..119db5e01080 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -1670,8 +1670,12 @@ int dm_calculate_queue_limits(struct dm_table *t, blk_set_stacking_limits(&ti_limits); - if (!ti->type->iterate_devices) + if (!ti->type->iterate_devices) { + /* Set I/O hints portion of queue limits */ + if (ti->type->io_hints) + ti->type->io_hints(ti, &ti_limits); goto combine_limits; + } /* * Combine queue limits of all the devices this target uses. |