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| author | Davide Libenzi <davidel@xmailserver.org> | 2009-03-31 15:24:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-01 08:59:20 -0700 |
| commit | 395108880efff4a4ffa1ffa554477f7f5ba6a031 (patch) | |
| tree | 7d5797145d54b6cd8752eb2a6b1fd934336a005f /fs/eventfd.c | |
| parent | 2dfa4eeab0fc7e8633974f2770945311b31eedf6 (diff) | |
| download | lwn-395108880efff4a4ffa1ffa554477f7f5ba6a031.tar.gz lwn-395108880efff4a4ffa1ffa554477f7f5ba6a031.zip | |
epoll keyed wakeups: make eventfd use keyed wakeups
Introduce keyed event wakeups inside the eventfd code.
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>
Diffstat (limited to 'fs/eventfd.c')
| -rw-r--r-- | fs/eventfd.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/eventfd.c b/fs/eventfd.c index 91c0829a7035..2a701d593d35 100644 --- a/fs/eventfd.c +++ b/fs/eventfd.c @@ -51,7 +51,7 @@ int eventfd_signal(struct file *file, int n) 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 *file, char __user *buf, size_t count, ucnt = (ctx->flags & EFD_SEMAPHORE) ? 1 : ctx->count; ctx->count -= ucnt; 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 *file, const char __user *buf, size_t c if (likely(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); |