Christian Schoenebeck wrote on Thu, Oct 06, 2022 at 04:55:23PM +0200:

quoted

diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
index e758978b44be..9870597da583 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c

@@ -821,11 +821,13 @@ static int p9_fd_open(struct p9_client *client, int

rfd, int wfd) goto out_free_ts;
 	if (!(ts->rd->f_mode & FMODE_READ))
 		goto out_put_rd;
+	ts->rd->f_flags |= O_NONBLOCK;

... I think this deserves a short comment like:

    /* prevent hung task with pipes */

Good point, I've sneaked in this comment:
    /* prevent workers from hanging on IO when fd is a pipe */

https://github.com/martinetd/linux/commit/ef575281b21e9a34dfae544a187c6aac2ae424a9

Reviewed-by: Christian Schoenebeck <linux_oss@crudebyte.com>

Thank you!

--
Dominique