[PATCH 1/2] pipe: honor iocb IOCB_NOWAIT flag as well

[Jens Axboe <axboe@kernel.dk>]

It's not enough to just check the file O_NONBLOCK flag, we should also
check if the iocb being passed in has been flagged as non-blocking as
well.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 fs/pipe.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/pipe.c b/fs/pipe.c
index 42c7ff41c2db..58fee8816564 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -342,7 +342,7 @@ pipe_read(struct kiocb *iocb, struct iov_iter *to)
 			break;
 		if (ret)
 			break;
-		if (filp->f_flags & O_NONBLOCK) {
+		if (filp->f_flags & O_NONBLOCK || iocb->ki_flags & IOCB_NOWAIT) {
 			ret = -EAGAIN;
 			break;
 		}
@@ -547,7 +547,7 @@ pipe_write(struct kiocb *iocb, struct iov_iter *from)
 			continue;
 
 		/* Wait for buffer space to become available. */
-		if (filp->f_flags & O_NONBLOCK) {
+		if (filp->f_flags & O_NONBLOCK || iocb->ki_flags & IOCB_NOWAIT) {
 			if (!ret)
 				ret = -EAGAIN;
 			break;
-- 
2.39.2