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| author | Jens Axboe <axboe@kernel.dk> | 2017-10-25 12:33:42 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-10-25 12:36:45 -0600 |
| commit | 2527d99789e248576ac8081530cd4fd88730f8c7 (patch) | |
| tree | b3053bb28bcb630c818a7dbe154f2b220a16edd3 /tools/perf/scripts/python | |
| parent | block: cope with WRITE ZEROES failing in blkdev_issue_zeroout() (diff) | |
| download | linux-2527d99789e248576ac8081530cd4fd88730f8c7.tar.gz linux-2527d99789e248576ac8081530cd4fd88730f8c7.zip | |
elevator: lookup mq vs non-mq elevators
If an IO scheduler is selected via elevator= and it doesn't match
the driver in question wrt blk-mq support, then we fail to boot.
The elevator= parameter is deprecated and only supported for
non-mq devices. Augment the elevator lookup API so that we
pass in if we're looking for an mq capable scheduler or not,
so that we only ever return a valid type for the queue in
question.
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=196695
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions