The patch titled
semaphore: __down_common: use signal_pending_state()
has been added to the -mm tree. Its filename is
semaphore-__down_common-use-signal_pending_state.patch
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------------------------------------------------------
Subject: semaphore: __down_common: use signal_pending_state()
From: Oleg Nesterov <oleg@xxxxxxxxxx>
Change __down_common() to use signal_pending_state() instead of open
coding.
The changes in kernel/semaphore.o are just artifacts, the state checks are
optimized away.
Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Matthew Wilcox <matthew@xxxxxx>
Cc: Roland McGrath <roland@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/semaphore.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff -puN kernel/semaphore.c~semaphore-__down_common-use-signal_pending_state kernel/semaphore.c
--- a/kernel/semaphore.c~semaphore-__down_common-use-signal_pending_state
+++ a/kernel/semaphore.c
@@ -211,9 +211,7 @@ static inline int __sched __down_common(
waiter.up = 0;
for (;;) {
- if (state == TASK_INTERRUPTIBLE && signal_pending(task))
- goto interrupted;
- if (state == TASK_KILLABLE && fatal_signal_pending(task))
+ if (signal_pending_state(state, task))
goto interrupted;
if (timeout <= 0)
goto timed_out;
_
Patches currently in -mm which might be from oleg@xxxxxxxxxx are
origin.patch
linux-next.patch
migrate_timers-add-comment-use-spinlock_irq.patch
sched-do_wait_for_common-use-signal_pending_state.patch
semaphore-__down_common-use-signal_pending_state.patch
posix-timers-fix-posix_timer_event-vs-dequeue_signal-race.patch
posix-timers-do_schedule_next_timer-fix-the-setting-of-si_overrun.patch
coredump-format_corename-dont-append-%pid-if-multi-threaded.patch
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