Messages in this thread | | | From | Nigel Cunningham <> | Subject | Re: [RFC][PATCH -mm] Freezer: Do not allow freezing processes to clear TIF_SIGPENDING | Date | Fri, 19 Oct 2007 08:09:02 +1000 |
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Hi.
On Friday 19 October 2007 08:22:35 Rafael J. Wysocki wrote: > 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>
Acked-by: Nigel Cunningham <nigel@suspend2.net>
> --- > 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); > > } >
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