diff options
| author | Ming Lei <ming.lei@redhat.com> | 2018-01-11 14:01:56 +0800 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2018-01-17 09:16:17 -0500 |
| commit | 050af08ffb1b62af69196d61c22a0755f9a3cdbd (patch) | |
| tree | ecb7779a5e70a907d74fd1134cd8d5dc7ab617cf /drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | |
| parent | 4b259fc4a8a12dcd0ffd670877a7a1ca2ab0f3e3 (diff) | |
dm mpath: return DM_MAPIO_REQUEUE on blk-mq rq allocation failure
blk-mq will rerun queue via RESTART or dispatch wake after one request
is completed, so not necessary to wait random time for requeuing, we
should trust blk-mq to do it.
More importantly, we need to return BLK_STS_RESOURCE to blk-mq so that
dequeuing from the I/O scheduler can be stopped, this results in
improved I/O merging.
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c')
0 files changed, 0 insertions, 0 deletions