Commit 9101cbe7 authored Nov 22, 2018 by Christoph Hellwig Committed by Greg Kroah-Hartman May 02, 2019

aio: clear IOCB_HIPRI



commit 154989e45fd8de9bfb52bbd6e5ea763e437e54c5 upstream.

No one is going to poll for aio (yet), so we must clear the HIPRI
flag, as we would otherwise send it down the poll queues, where no
one will be polling for completions.

Signed-off-by: Christoph Hellwig <hch@lst.de>

IOCB_HIPRI, not RWF_HIPRI.

Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 920ecc72

fs/aio.c

+8 −3

Original line number	Diff line number	Diff line
		@@ -1438,8 +1438,7 @@ static int aio_prep_rw(struct kiocb req, struct iocb iocb)
		ret = ioprio_check_cap(iocb->aio_reqprio);
		if (ret) {
		pr_debug("aio ioprio check cap error: %d\n", ret);
		fput(req->ki_filp);
		return ret;
		goto out_fput;
		}

		req->ki_ioprio = iocb->aio_reqprio;
		@@ -1448,6 +1447,12 @@ static int aio_prep_rw(struct kiocb req, struct iocb iocb)

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

		req->ki_flags &= ~IOCB_HIPRI; /* no one is going to poll for this I/O */
		return 0;

		out_fput:
		fput(req->ki_filp);
		return ret;
		}