From: Jens Axboe <axboe@kernel.dk>
Date: Wed, 1 Sep 2021 17:18:41 +0000 (-0600)
Subject: io-wq: only exit on fatal signals
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=15e20db2e0cecce0bfc6a67b69e55020fe9cda00;p=linux.git

io-wq: only exit on fatal signals

If the application uses io_uring and also relies heavily on signals
for communication, that can cause io-wq workers to spuriously exit
just because the parent has a signal pending. Just ignore signals
unless they are fatal.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/fs/io-wq.c b/fs/io-wq.c
index 8cba77a937a12..027eb4e13e3b6 100644
--- a/fs/io-wq.c
+++ b/fs/io-wq.c
@@ -575,7 +575,9 @@ loop:
 
 			if (!get_signal(&ksig))
 				continue;
-			break;
+			if (fatal_signal_pending(current))
+				break;
+			continue;
 		}
 		if (ret)
 			continue;