diff options
| author | Bart Van Assche <[email protected]> | 2021-08-05 10:41:59 -0700 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2021-08-05 11:49:21 -0600 |
| commit | 90b7198001f23ea37d3b46dc631bdaa2357a20b1 (patch) | |
| tree | 6f2e6f129a9444b686340c7d8ea9b3b8f4189016 /drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | |
| parent | 2bc1f6e442eec88fa60f1ee6bef2c9871227cf8a (diff) | |
blk-mq: Introduce the BLK_MQ_F_NO_SCHED_BY_DEFAULT flag
elevator_get_default() uses the following algorithm to select an I/O
scheduler from inside add_disk():
- In case of a single hardware queue or if sharing hardware queues across
multiple request queues (BLK_MQ_F_TAG_HCTX_SHARED), use mq-deadline.
- Otherwise, use 'none'.
This is a good choice for most but not for all block drivers. Make it
possible to override the selection of mq-deadline with a new flag,
namely BLK_MQ_F_NO_SCHED_BY_DEFAULT.
Cc: Christoph Hellwig <[email protected]>
Cc: Ming Lei <[email protected]>
Cc: Tetsuo Handa <[email protected]>
Cc: Martijn Coenen <[email protected]>
Cc: Jaegeuk Kim <[email protected]>
Signed-off-by: Bart Van Assche <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c')
0 files changed, 0 insertions, 0 deletions