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authorRafael J. Wysocki <rjw@sisk.pl>2007-10-29 17:37:12 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-30 11:06:55 -0400
commitcc5f916e90a811dd8f809b4d17409f98e74b237c (patch)
tree14a6c21e0f2de43553e94460aca897076d0f1952 /kernel/signal.c
parentc8593884f2768fa3ff6f7e199d75b6ca91f9e891 (diff)
Freezer: do not allow freezing processes to clear TIF_SIGPENDING
Do not allow processes to clear their TIF_SIGPENDING if TIF_FREEZE is set, so that they will not race with the freezer (like mysqld does, for example). Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Nigel Cunningham <nigel@suspend2.net> Acked-by: Pavel Machek <pavel@ucw.cz> Cc: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/signal.c')
-rw-r--r--kernel/signal.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/signal.c b/kernel/signal.c
index 4537bdda1ebf..909a0cc6bc70 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -124,7 +124,7 @@ void recalc_sigpending_and_wake(struct task_struct *t)
124 124
125void recalc_sigpending(void) 125void recalc_sigpending(void)
126{ 126{
127 if (!recalc_sigpending_tsk(current)) 127 if (!recalc_sigpending_tsk(current) && !freezing(current))
128 clear_thread_flag(TIF_SIGPENDING); 128 clear_thread_flag(TIF_SIGPENDING);
129 129
130} 130}