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From: Sasha Levin <[email protected]>
To: [email protected], [email protected]
Cc: Stefan Metzmacher <[email protected]>, Jens Axboe <[email protected]>,
	Sasha Levin <[email protected]>,
	[email protected], [email protected]
Subject: [PATCH AUTOSEL 5.11 37/44] io_uring: imply MSG_NOSIGNAL for send[msg]()/recv[msg]() calls
Date: Thu, 25 Mar 2021 07:24:52 -0400	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

From: Stefan Metzmacher <[email protected]>

[ Upstream commit 76cd979f4f38a27df22efb5773a0d567181a9392 ]

We never want to generate any SIGPIPE, -EPIPE only is much better.

Signed-off-by: Stefan Metzmacher <[email protected]>
Link: https://lore.kernel.org/r/38961085c3ec49fd21550c7788f214d1ff02d2d4.1615908477.git.metze@samba.org
Signed-off-by: Jens Axboe <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
 fs/io_uring.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 8e45331d1fed..4ac24e75ae63 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -4645,7 +4645,7 @@ static int io_sendmsg(struct io_kiocb *req, bool force_nonblock,
 		kmsg = &iomsg;
 	}
 
-	flags = req->sr_msg.msg_flags;
+	flags = req->sr_msg.msg_flags | MSG_NOSIGNAL;
 	if (flags & MSG_DONTWAIT)
 		req->flags |= REQ_F_NOWAIT;
 	else if (force_nonblock)
@@ -4689,7 +4689,7 @@ static int io_send(struct io_kiocb *req, bool force_nonblock,
 	msg.msg_controllen = 0;
 	msg.msg_namelen = 0;
 
-	flags = req->sr_msg.msg_flags;
+	flags = req->sr_msg.msg_flags | MSG_NOSIGNAL;
 	if (flags & MSG_DONTWAIT)
 		req->flags |= REQ_F_NOWAIT;
 	else if (force_nonblock)
@@ -4883,7 +4883,7 @@ static int io_recvmsg(struct io_kiocb *req, bool force_nonblock,
 				1, req->sr_msg.len);
 	}
 
-	flags = req->sr_msg.msg_flags;
+	flags = req->sr_msg.msg_flags | MSG_NOSIGNAL;
 	if (flags & MSG_DONTWAIT)
 		req->flags |= REQ_F_NOWAIT;
 	else if (force_nonblock)
@@ -4941,7 +4941,7 @@ static int io_recv(struct io_kiocb *req, bool force_nonblock,
 	msg.msg_iocb = NULL;
 	msg.msg_flags = 0;
 
-	flags = req->sr_msg.msg_flags;
+	flags = req->sr_msg.msg_flags | MSG_NOSIGNAL;
 	if (flags & MSG_DONTWAIT)
 		req->flags |= REQ_F_NOWAIT;
 	else if (force_nonblock)
-- 
2.30.1


  parent reply	other threads:[~2021-03-25 11:26 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <[email protected]>
2021-03-25 11:24 ` [PATCH AUTOSEL 5.11 24/44] io_uring: fix ->flags races by linked timeouts Sasha Levin
2021-03-25 11:24 ` [PATCH AUTOSEL 5.11 25/44] io_uring: halt SQO submission on ctx exit Sasha Levin
2021-03-25 11:24 ` Sasha Levin [this message]
2021-03-25 11:24 ` [PATCH AUTOSEL 5.11 44/44] io_uring: call req_set_fail_links() on short send[msg]()/recv[msg]() with MSG_WAITALL Sasha Levin
     [not found] ` <[email protected]>
     [not found]   ` <[email protected]>
     [not found]     ` <[email protected]>
2021-03-25 12:11       ` [PATCH AUTOSEL 5.11 43/44] signal: don't allow STOP on PF_IO_WORKER threads Stefan Metzmacher
2021-03-25 13:38         ` Jens Axboe
2021-03-25 13:56           ` Stefan Metzmacher
2021-03-25 14:02             ` Jens Axboe
2021-03-25 15:00               ` Sasha Levin
2021-03-25 15:10               ` Jens Axboe

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