From: Florian Fainelli <florian.fainelli@broadcom.com>
To: stable@vger.kernel.org
Cc: Tiwei Bie <tiwei.btw@antgroup.com>,
Johannes Berg <johannes.berg@intel.com>,
Florian Fainelli <florian.fainelli@broadcom.com>,
Richard Weinberger <richard@nod.at>,
Anton Ivanov <anton.ivanov@cambridgegreys.com>,
Johannes Berg <johannes@sipsolutions.net>,
Brendan Higgins <brendan.higgins@linux.dev>,
David Gow <david@davidgow.net>, Rae Moar <raemoar63@gmail.com>,
Kees Cook <kees@kernel.org>, Jens Axboe <axboe@kernel.dk>,
Al Viro <viro@zeniv.linux.org.uk>,
linux-um@lists.infradead.org (open list:USER-MODE LINUX (UML)),
linux-kernel@vger.kernel.org (open list),
linux-kselftest@vger.kernel.org (open list:KERNEL UNIT TESTING
FRAMEWORK (KUnit)),
kunit-dev@googlegroups.com (open list:KERNEL UNIT TESTING
FRAMEWORK (KUnit)),
bcm-kernel-feedback-list@broadcom.com
Subject: [PATCH stable 6.12 3/9] um: Use os_set_pdeathsig helper in winch thread/process
Date: Fri, 24 Jul 2026 14:41:13 -0700 [thread overview]
Message-ID: <20260724214119.1066665-4-florian.fainelli@broadcom.com> (raw)
In-Reply-To: <20260724214119.1066665-1-florian.fainelli@broadcom.com>
From: Tiwei Bie <tiwei.btw@antgroup.com>
commit 42b8b00c8ab1ac18fccde3f29ee589626a561ea7 upstream
Since we have a helper now, let's switch to using it. It will make
the code slightly more consistent.
Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Link: https://patch.msgid.link/20241024142828.2612828-5-tiwei.btw@antgroup.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
---
arch/um/drivers/chan_user.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/um/drivers/chan_user.c b/arch/um/drivers/chan_user.c
index 1434114b2f34..35f9beeb19b3 100644
--- a/arch/um/drivers/chan_user.c
+++ b/arch/um/drivers/chan_user.c
@@ -10,7 +10,6 @@
#include <signal.h>
#include <termios.h>
#include <sys/ioctl.h>
-#include <sys/prctl.h>
#include "chan_user.h"
#include <os.h>
#include <um_malloc.h>
@@ -162,7 +161,7 @@ static __noreturn int winch_thread(void *arg)
int count;
char c = 1;
- prctl(PR_SET_PDEATHSIG, SIGKILL);
+ os_set_pdeathsig();
pty_fd = data->pty_fd;
pipe_fd = data->pipe_fd;
--
2.34.1
next prev parent reply other threads:[~2026-07-24 21:49 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-24 21:41 [PATCH stable 6.12 0/9] Kunit backports for older systems Florian Fainelli
2026-07-24 21:41 ` [PATCH stable 6.12 1/9] um: Add os_set_pdeathsig helper function Florian Fainelli
2026-07-24 21:41 ` [PATCH stable 6.12 2/9] um: Set parent death signal for winch thread/process Florian Fainelli
2026-07-24 21:41 ` Florian Fainelli [this message]
2026-07-24 21:41 ` [PATCH stable 6.12 4/9] um: Set parent-death signal for ubd io thread/process Florian Fainelli
2026-07-24 21:41 ` [PATCH stable 6.12 5/9] um: Set parent-death signal for write_sigio thread/process Florian Fainelli
2026-07-24 21:41 ` [PATCH stable 6.12 6/9] um: Set parent death signal for userspace process Florian Fainelli
2026-07-24 21:41 ` [PATCH stable 6.12 7/9] kunit: tool: Terminate kernel under test on SIGINT Florian Fainelli
2026-07-24 21:41 ` [PATCH stable 6.12 8/9] kunit: tool: skip stty when stdin is not a tty Florian Fainelli
2026-07-24 21:41 ` [PATCH stable 6.12 9/9] um: Preserve errno within signal handler Florian Fainelli
2026-07-30 12:38 ` [PATCH stable 6.12 0/9] Kunit backports for older systems Greg KH
2026-07-30 16:07 ` Florian Fainelli
2026-07-31 2:39 ` Sasha Levin
2026-07-31 23:16 ` Florian Fainelli
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