Contributors: 18
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Davide Libenzi |
176 |
61.32% |
5 |
21.74% |
| Jens Axboe |
42 |
14.63% |
2 |
8.70% |
| Randy Dunlap |
21 |
7.32% |
1 |
4.35% |
| David Woodhouse |
13 |
4.53% |
1 |
4.35% |
| Thomas Gleixner |
9 |
3.14% |
1 |
4.35% |
| Sha Zhengju |
3 |
1.05% |
1 |
4.35% |
| Al Viro |
3 |
1.05% |
1 |
4.35% |
| Arnd Bergmann |
3 |
1.05% |
1 |
4.35% |
| Eric Biggers |
3 |
1.05% |
1 |
4.35% |
| Wen Yang |
3 |
1.05% |
1 |
4.35% |
| Andi Kleen |
2 |
0.70% |
1 |
4.35% |
| Linus Torvalds (pre-git) |
2 |
0.70% |
1 |
4.35% |
| Ingo Molnar |
2 |
0.70% |
1 |
4.35% |
| Greg Kroah-Hartman |
1 |
0.35% |
1 |
4.35% |
| Dylan Yudaken |
1 |
0.35% |
1 |
4.35% |
| Qilong Zhang |
1 |
0.35% |
1 |
4.35% |
| Martin Sustrik |
1 |
0.35% |
1 |
4.35% |
| Min-Hua Chen |
1 |
0.35% |
1 |
4.35% |
| Total |
287 |
|
23 |
|
/* SPDX-License-Identifier: GPL-2.0 */
/*
* include/linux/eventfd.h
*
* Copyright (C) 2007 Davide Libenzi <davidel@xmailserver.org>
*
*/
#ifndef _LINUX_EVENTFD_H
#define _LINUX_EVENTFD_H
#include <linux/wait.h>
#include <linux/err.h>
#include <linux/percpu-defs.h>
#include <linux/percpu.h>
#include <linux/sched.h>
#include <uapi/linux/eventfd.h>
/*
* CAREFUL: Check include/uapi/asm-generic/fcntl.h when defining
* new flags, since they might collide with O_* ones. We want
* to re-use O_* flags that couldn't possibly have a meaning
* from eventfd, in order to leave a free define-space for
* shared O_* flags.
*/
#define EFD_SHARED_FCNTL_FLAGS (O_CLOEXEC | O_NONBLOCK)
#define EFD_FLAGS_SET (EFD_SHARED_FCNTL_FLAGS | EFD_SEMAPHORE)
struct eventfd_ctx;
struct file;
#ifdef CONFIG_EVENTFD
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);
__u64 eventfd_signal(struct eventfd_ctx *ctx, __u64 n);
__u64 eventfd_signal_mask(struct eventfd_ctx *ctx, __u64 n, __poll_t mask);
int eventfd_ctx_remove_wait_queue(struct eventfd_ctx *ctx, wait_queue_entry_t *wait,
__u64 *cnt);
void eventfd_ctx_do_read(struct eventfd_ctx *ctx, __u64 *cnt);
static inline bool eventfd_signal_allowed(void)
{
return !current->in_eventfd;
}
#else /* CONFIG_EVENTFD */
/*
* Ugly ugly ugly error layer to support modules that uses eventfd but
* pretend to work in !CONFIG_EVENTFD configurations. Namely, AIO.
*/
static inline struct eventfd_ctx *eventfd_ctx_fdget(int fd)
{
return ERR_PTR(-ENOSYS);
}
static inline int eventfd_signal(struct eventfd_ctx *ctx, __u64 n)
{
return -ENOSYS;
}
static inline int eventfd_signal_mask(struct eventfd_ctx *ctx, __u64 n,
unsigned mask)
{
return -ENOSYS;
}
static inline void eventfd_ctx_put(struct eventfd_ctx *ctx)
{
}
static inline int eventfd_ctx_remove_wait_queue(struct eventfd_ctx *ctx,
wait_queue_entry_t *wait, __u64 *cnt)
{
return -ENOSYS;
}
static inline bool eventfd_signal_allowed(void)
{
return true;
}
static inline void eventfd_ctx_do_read(struct eventfd_ctx *ctx, __u64 *cnt)
{
}
#endif
#endif /* _LINUX_EVENTFD_H */