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| author | Ming Lei <ming.lei@redhat.com> | 2018-07-30 15:02:19 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-08-02 19:36:02 +0300 |
| commit | b233f127042dba991229e3882c6217c80492f6ef (patch) | |
| tree | 3cf4b40536ec5da10dbca089c30e041baa0ba021 /fs/debugfs | |
| parent | 99972f171bba19243999310154b7442198f0ab30 (diff) | |
| download | linux-b233f127042dba991229e3882c6217c80492f6ef.tar.xz | |
block: really disable runtime-pm for blk-mq
Runtime PM isn't ready for blk-mq yet, and commit 765e40b675a9 ("block:
disable runtime-pm for blk-mq") tried to disable it. Unfortunately,
it can't take effect in that way since user space still can switch
it on via 'echo auto > /sys/block/sdN/device/power/control'.
This patch disables runtime-pm for blk-mq really by pm_runtime_disable()
and fixes all kinds of PM related kernel crash.
Cc: Tomas Janousek <tomi@nomi.cz>
Cc: Przemek Socha <soprwa@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: <stable@vger.kernel.org>
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/debugfs')
0 files changed, 0 insertions, 0 deletions