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io_uring: make HARDLINK imply LINK

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The rules are as follows, if IOSQE_IO_HARDLINK is specified, then it's a
link and there is no need to set IOSQE_IO_LINK separately, though it
could be there. Add proper check and ensure that IOSQE_IO_HARDLINK
implies IOSQE_IO_LINK.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2019-12-17 20:57:05 +03:00 committed by Jens Axboe
parent 8ed8d3c3bc
commit ffbb8d6b76
1 changed files with 1 additions and 1 deletions
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2
fs/io_uring.c
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@ -3698,7 +3698,7 @@ static int io_submit_sqes(struct io_ring_ctx *ctx, unsigned int nr,
* If previous wasn't linked and we have a linked command,
* that's the end of the chain. Submit the previous link.
*/
if (!(sqe_flags & IOSQE_IO_LINK) && link) {
if (!(sqe_flags & (IOSQE_IO_LINK|IOSQE_IO_HARDLINK)) && link) {
io_queue_link_head(link);
link = NULL;
}