Commit 76dc8913 authored Nov 20, 2018 by Damien Le Moal Committed by Jens Axboe Nov 19, 2018

aio: Fix fallback I/O priority value



For cases when the application does not specify aio_reqprio for an aio,
fallback to use get_current_ioprio() to obtain the task I/O priority
last set using ioprio_set() rather than the hardcoded IOPRIO_CLASS_NONE
value.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Adam Manzanares <adam.manzanares@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

parent 64845a1d

fs/aio.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1441,7 +1441,7 @@ static int aio_prep_rw(struct kiocb req, struct iocb iocb)

		req->ki_ioprio = iocb->aio_reqprio;
		} else
		req->ki_ioprio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_NONE, 0);
		req->ki_ioprio = get_current_ioprio();

		ret = kiocb_set_rw_flags(req, iocb->aio_rw_flags);
		if (unlikely(ret))

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