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 5/6] epoll keyed wakeups v2 - make eventfd use keyed wakeups
Date: Sun, 01 Feb 2009 12:04:23 -0800 [thread overview]
Message-ID: <send-serie.davidel@xmailserver.org.13601.1233518666.5> (raw)
The following patch introduces keyed event wakeups inside the eventfd code.
Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
- Davide
---
fs/eventfd.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
Index: linux-2.6.mod/fs/eventfd.c
===================================================================
--- linux-2.6.mod.orig/fs/eventfd.c 2009-01-31 14:55:13.000000000 -0800
+++ linux-2.6.mod/fs/eventfd.c 2009-01-31 15:36:00.000000000 -0800
@@ -50,7 +50,7 @@ int eventfd_signal(struct file *file, in
n = (int) (ULLONG_MAX - ctx->count);
ctx->count += n;
if (waitqueue_active(&ctx->wqh))
- wake_up_locked(&ctx->wqh);
+ wake_up_locked_poll(&ctx->wqh, POLLIN);
spin_unlock_irqrestore(&ctx->wqh.lock, flags);
return n;
@@ -120,7 +120,7 @@ static ssize_t eventfd_read(struct file
if (res > 0) {
ctx->count = 0;
if (waitqueue_active(&ctx->wqh))
- wake_up_locked(&ctx->wqh);
+ wake_up_locked_poll(&ctx->wqh, POLLOUT);
}
spin_unlock_irq(&ctx->wqh.lock);
if (res > 0 && put_user(ucnt, (__u64 __user *) buf))
@@ -169,7 +169,7 @@ static ssize_t eventfd_write(struct file
if (res > 0) {
ctx->count += ucnt;
if (waitqueue_active(&ctx->wqh))
- wake_up_locked(&ctx->wqh);
+ wake_up_locked_poll(&ctx->wqh, POLLIN);
}
spin_unlock_irq(&ctx->wqh.lock);
reply other threads:[~2009-02-01 20:06 UTC|newest]
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