36 	__u64 count;  member
59 	if (ULLONG_MAX - ctx->count < n)  in eventfd_signal()
60 		n = ULLONG_MAX - ctx->count;  in eventfd_signal()
61 	ctx->count += n;  in eventfd_signal()
121 	u64 count;  in eventfd_poll()  local
125 	count = ctx->count;  in eventfd_poll()
127 	if (count > 0)  in eventfd_poll()
129 	if (count == ULLONG_MAX)  in eventfd_poll()
131 	if (ULLONG_MAX - 1 > count)  in eventfd_poll()
139 	*cnt = (ctx->flags & EFD_SEMAPHORE) ? 1 : ctx->count;  in eventfd_ctx_do_read()
140 	ctx->count -= *cnt;  in eventfd_ctx_do_read()
194 	if (ctx->count > 0)  in eventfd_ctx_read()
200 			if (ctx->count > 0) {  in eventfd_ctx_read()
226 static ssize_t eventfd_read(struct file *file, char __user *buf, size_t count,  in eventfd_read()  argument
233 	if (count < sizeof(cnt))  in eventfd_read()
242 static ssize_t eventfd_write(struct file *file, const char __user *buf, size_t count,  in eventfd_write()  argument
250 	if (count < sizeof(ucnt))  in eventfd_write()
258 	if (ULLONG_MAX - ctx->count > ucnt)  in eventfd_write()
264 			if (ULLONG_MAX - ctx->count > ucnt) {  in eventfd_write()
280 		ctx->count += ucnt;  in eventfd_write()
296 		   (unsigned long long)ctx->count);  in eventfd_show_fdinfo()
391 struct file *eventfd_file_create(unsigned int count, int flags)  in eventfd_file_create()  argument
409 	ctx->count = count;  in eventfd_file_create()
420 SYSCALL_DEFINE2(eventfd2, unsigned int, count, int, flags)  in SYSCALL_DEFINE2()  argument
430 	file = eventfd_file_create(count, flags);  in SYSCALL_DEFINE2()
445 SYSCALL_DEFINE1(eventfd, unsigned int, count)  in SYSCALL_DEFINE1()  argument
447 	return sys_eventfd2(count, 0);  in SYSCALL_DEFINE1()