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epoll keyed wakeups: introduce new *_poll() wakeup macros

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Introduce new wakeup macros that allow passing an event mask to the wakeup
targets.  They exactly mimic their non-_poll() counterpart, with the added
event mask passing capability.  I did add only the ones currently
requested, avoiding the _nr() and _all() for the moment.

Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: David Miller <davem@davemloft.net>
Cc: William Lee Irwin III <wli@movementarian.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Davide Libenzi 2009-03-31 15:24:20 -07:00 committed by Linus Torvalds
parent 4ede816ac3
commit c0da377536
1 changed files with 9 additions and 13 deletions
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22
include/linux/wait.h
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@ -158,21 +158,17 @@ wait_queue_head_t *bit_waitqueue(void *, int);
#define wake_up_interruptible_all(x) __wake_up(x, TASK_INTERRUPTIBLE, 0, NULL)
#define wake_up_interruptible_sync(x) __wake_up_sync((x), TASK_INTERRUPTIBLE, 1)
#ifdef CONFIG_DEBUG_LOCK_ALLOC
/*
* macro to avoid include hell
* Wakeup macros to be used to report events to the targets.
*/
#define wake_up_nested(x, s) \
do { \
unsigned long flags; \
\
spin_lock_irqsave_nested(&(x)->lock, flags, (s)); \
wake_up_locked(x); \
spin_unlock_irqrestore(&(x)->lock, flags); \
} while (0)
#else
#define wake_up_nested(x, s) wake_up(x)
#endif
#define wake_up_poll(x, m) \
__wake_up(x, TASK_NORMAL, 1, (void *) (m))
#define wake_up_locked_poll(x, m) \
__wake_up_locked_key((x), TASK_NORMAL, (void *) (m))
#define wake_up_interruptible_poll(x, m) \
__wake_up(x, TASK_INTERRUPTIBLE, 1, (void *) (m))
#define wake_up_interruptible_sync_poll(x, m) \
__wake_up_sync_key((x), TASK_INTERRUPTIBLE, 1, (void *) (m))
#define __wait_event(wq, condition) \
do { \