diff mbox series

[02/11] af_unix: unix_stream_splice_read: always request MSG_DONTWAIT

Message ID 8db45d00902da22ae25aa16a0c28bb41002fc039.1697486714.git.nabijaczleweli@nabijaczleweli.xyz
State New
Headers
Series splice(file<>pipe) I/O on file as-if O_NONBLOCK |

Commit Message

Ahelenia Ziemiańska Oct. 16, 2023, 8:35 p.m. UTC 
  Otherwise we risk sleeping with the pipe locked for indeterminate
lengths of time.

Link: https://lore.kernel.org/linux-fsdevel/qk6hjuam54khlaikf2ssom6custxf5is2ekkaequf4hvode3ls@zgf7j5j4ubvw/t/#u
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
---
 net/unix/af_unix.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 3e8a04a13668..9489b9bda753 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -2889,15 +2889,12 @@  static ssize_t unix_stream_splice_read(struct socket *sock,  loff_t *ppos,
 		.pipe = pipe,
 		.size = size,
 		.splice_flags = flags,
+		.flags = MSG_DONTWAIT,
 	};
 
 	if (unlikely(*ppos))
 		return -ESPIPE;
 
-	if (sock->file->f_flags & O_NONBLOCK ||
-	    flags & SPLICE_F_NONBLOCK)
-		state.flags = MSG_DONTWAIT;
-
 	return unix_stream_read_generic(&state, false);
 }