Messages in this thread Patch in this message | | | Date | Wed, 02 Oct 2013 11:22:29 +0200 | From | Peter Zijlstra <> | Subject | [PATCH 12/16] sched/wait: Collapse __wait_event_interruptible_lock_irq_timeout() |
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Reduce macro complexity by using the new ___wait_event() helper. No change in behaviour, identical generated code.
Reviewed-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> --- include/linux/tty.h | 21 +---- include/linux/wait.h | 192 +++++++++++++++------------------------------------ 2 files changed, 63 insertions(+), 150 deletions(-)
--- a/include/linux/wait.h +++ b/include/linux/wait.h @@ -809,25 +748,12 @@ do { \ __ret; \ }) -#define __wait_event_interruptible_lock_irq_timeout(wq, condition, \ - lock, ret) \ -do { \ - DEFINE_WAIT(__wait); \ - \ - for (;;) { \ - prepare_to_wait(&wq, &__wait, TASK_INTERRUPTIBLE); \ - if (___wait_cond_timeout(condition, ret)) \ - break; \ - if (signal_pending(current)) { \ - ret = -ERESTARTSYS; \ - break; \ - } \ - spin_unlock_irq(&lock); \ - ret = schedule_timeout(ret); \ - spin_lock_irq(&lock); \ - } \ - finish_wait(&wq, &__wait); \ -} while (0) +#define __wait_event_interruptible_lock_irq_timeout(wq, condition, lock, ret) \ + ___wait_event(wq, ___wait_cond_timeout(condition, ret), \ + TASK_INTERRUPTIBLE, 0, ret, \ + spin_unlock_irq(&lock); \ + ret = schedule_timeout(ret); \ + spin_lock_irq(&lock)); /** * wait_event_interruptible_lock_irq_timeout - sleep until a condition gets true or a timeout elapses.
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