block: fix peeking requests during PM

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We need to look for an active PM request until the next softbarrier
instead of looking for the first non-PM request.  Otherwise any cause
of request reordering might starve the PM request(s).

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Christoph Hellwig 2017-10-20 16:45:23 +02:00 • committed by Jens Axboe

parent 21e768b442

commit e4f36b249b

1 changed files with 18 additions and 17 deletions

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block/blk-core.c

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