From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Nigel Cunningham <nigel@nigel.suspend2.net>,
Oleg Nesterov <oleg@tv-sign.ru>, Pavel Machek <pavel@ucw.cz>,
pm list <linux-pm@lists.linux-foundation.org>
Subject: [RFC][PATCH -mm] Freezer: Do not allow freezing processes to clear TIF_SIGPENDING
Date: Fri, 19 Oct 2007 00:22:35 +0200 [thread overview]
Message-ID: <200710190022.36145.rjw@sisk.pl> (raw)
From: Rafael J. Wysocki <rjw@sisk.pl>
Do not allow processes to clear their TIF_SIGPENDING if TIF_FREEZE is set,
to prevent them from racing with the freezer (like mysqld does, for example).
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
---
kernel/signal.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux-2.6.23-mm1/kernel/signal.c
===================================================================
--- linux-2.6.23-mm1.orig/kernel/signal.c
+++ linux-2.6.23-mm1/kernel/signal.c
@@ -124,7 +124,7 @@ void recalc_sigpending_and_wake(struct t
void recalc_sigpending(void)
{
- if (!recalc_sigpending_tsk(current))
+ if (!recalc_sigpending_tsk(current) && !freezing(current))
clear_thread_flag(TIF_SIGPENDING);
}
next reply other threads:[~2007-10-18 22:06 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-18 22:22 Rafael J. Wysocki [this message]
2007-10-18 22:09 ` [RFC][PATCH -mm] Freezer: Do not allow freezing processes to clear TIF_SIGPENDING Nigel Cunningham
2007-10-18 22:09 ` Nigel Cunningham
2007-10-19 7:55 ` Pavel Machek
2007-10-19 7:55 ` Pavel Machek
2007-10-19 21:34 ` Rafael J. Wysocki
2007-10-19 21:34 ` Rafael J. Wysocki
-- strict thread matches above, loose matches on Subject: below --
2007-10-18 22:22 Rafael J. Wysocki
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=200710190022.36145.rjw@sisk.pl \
--to=rjw@sisk.pl \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@lists.linux-foundation.org \
--cc=nigel@nigel.suspend2.net \
--cc=oleg@tv-sign.ru \
--cc=pavel@ucw.cz \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.