From: Davide Libenzi <davidel@xmailserver.org>
To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Alan Cox <alan@lxorguk.ukuu.org.uk>, Ingo Molnar <mingo@elte.hu>,
David Miller <davem@davemloft.net>
Subject: [patch 2/6] epoll keyed wakeups v3 - introduce new *_poll() wakeup macros
Date: Thu, 05 Feb 2009 12:23:39 -0800 [thread overview]
Message-ID: <send-serie.davidel@xmailserver.org.21761.1233865420.2> (raw)
This patch introduces 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>
- Davide
---
include/linux/wait.h | 22 +++++++++-------------
1 file changed, 9 insertions(+), 13 deletions(-)
Index: linux-2.6.mod/include/linux/wait.h
===================================================================
--- linux-2.6.mod.orig/include/linux/wait.h 2009-02-03 13:44:00.000000000 -0800
+++ linux-2.6.mod/include/linux/wait.h 2009-02-03 13:44:01.000000000 -0800
@@ -156,21 +156,17 @@ wait_queue_head_t *bit_waitqueue(void *,
#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 { \
reply other threads:[~2009-02-05 20:24 UTC|newest]
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