| commit | 54d5329d425650fafaf90660a139c771d2d49cae | [log] [tgz] |
|---|---|---|
| author | Omar Sandoval <osandov@fb.com> | Fri Apr 07 08:52:27 2017 -0600 |
| committer | Jens Axboe <axboe@fb.com> | Fri Apr 07 08:56:48 2017 -0600 |
| tree | 3fc6db73809742be0f0fdf403c77af02a6feeeba | |
| parent | 93252632e828da3e90241a1c0e766556abf71598 [diff] |
blk-mq-sched: fix crash in switch error path In elevator_switch(), if blk_mq_init_sched() fails, we attempt to fall back to the original scheduler. However, at this point, we've already torn down the original scheduler's tags, so this causes a crash. Doing the fallback like the legacy elevator path is much harder for mq, so fix it by just falling back to none, instead. Signed-off-by: Omar Sandoval <osandov@fb.com> Signed-off-by: Jens Axboe <axboe@fb.com>