[PATCH] Freezer: Do not allow freezing processes to clear TIF_SIGPENDING

2007-10-23 Thread Rafael J. Wysocki 
[Please consider as 2.6.24 material.]
---
From: Rafael J. Wysocki <[EMAIL PROTECTED]>

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 <[EMAIL PROTECTED]>
Acked-by: Nigel Cunningham <[EMAIL PROTECTED]>
Acked-by: Pavel Machek <[EMAIL PROTECTED]>
---
 kernel/signal.c |2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6.23/kernel/signal.c
===
--- linux-2.6.23.orig/kernel/signal.c
+++ linux-2.6.23/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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[PATCH] Freezer: Do not allow freezing processes to clear TIF_SIGPENDING

2007-10-23 Thread Rafael J. Wysocki 
[Please consider as 2.6.24 material.]
---
From: Rafael J. Wysocki [EMAIL PROTECTED]

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 [EMAIL PROTECTED]
Acked-by: Nigel Cunningham [EMAIL PROTECTED]
Acked-by: Pavel Machek [EMAIL PROTECTED]
---
 kernel/signal.c |2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6.23/kernel/signal.c
===
--- linux-2.6.23.orig/kernel/signal.c
+++ linux-2.6.23/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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