diff options
| author | Sha Zhengju <handai.szj@taobao.com> | 2012-06-01 03:26:41 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-06-01 04:49:32 +0400 |
| commit | ee62c6b2dc93c09585b51fad18449dc5edb9977f (patch) | |
| tree | 538f5338f6a00d1a4cee9e69ba74082747a452aa /include/linux/eventfd.h | |
| parent | 71ca97da9d027009d318d319cbacf54a72f666c1 (diff) | |
| download | linux-ee62c6b2dc93c09585b51fad18449dc5edb9977f.tar.xz | |
eventfd: change int to __u64 in eventfd_signal()
eventfd_ctx->count is an __u64 counter which is allowed to reach
ULLONG_MAX. eventfd_write() adds a __u64 value to "count", but the kernel
side eventfd_signal() only adds an int value to it. Make them consistent.
[akpm@linux-foundation.org: update interface documentation]
Signed-off-by: Sha Zhengju <handai.szj@taobao.com>
Cc: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/eventfd.h')
| -rw-r--r-- | include/linux/eventfd.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/eventfd.h b/include/linux/eventfd.h index 91bb4f27238c..3c3ef19a625a 100644 --- a/include/linux/eventfd.h +++ b/include/linux/eventfd.h @@ -34,7 +34,7 @@ void eventfd_ctx_put(struct eventfd_ctx *ctx); struct file *eventfd_fget(int fd); struct eventfd_ctx *eventfd_ctx_fdget(int fd); struct eventfd_ctx *eventfd_ctx_fileget(struct file *file); -int eventfd_signal(struct eventfd_ctx *ctx, int n); +__u64 eventfd_signal(struct eventfd_ctx *ctx, __u64 n); ssize_t eventfd_ctx_read(struct eventfd_ctx *ctx, int no_wait, __u64 *cnt); int eventfd_ctx_remove_wait_queue(struct eventfd_ctx *ctx, wait_queue_t *wait, __u64 *cnt); |