lkml.org 
[lkml]   [2007]   [Oct]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[RFC][PATCH -mm] Freezer: Do not allow freezing processes to clear TIF_SIGPENDING
Date
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);

}
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
\
 
 \ /
  Last update: 2007-10-19 00:09    [W:0.053 / U:0.388 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site