Messages in this thread Patch in this message | | | From | "Rafael J. Wysocki" <> | Subject | [RFC][PATCH -mm] Freezer: Do not allow freezing processes to clear TIF_SIGPENDING | Date | Fri, 19 Oct 2007 00:22:35 +0200 |
| |
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/
| |