diff options
Diffstat (limited to 'include/uapi/linux/eventpoll.h')
| -rw-r--r-- | include/uapi/linux/eventpoll.h | 44 |
1 files changed, 40 insertions, 4 deletions
diff --git a/include/uapi/linux/eventpoll.h b/include/uapi/linux/eventpoll.h index 2c267bcbb85c..4f4b948ef381 100644 --- a/include/uapi/linux/eventpoll.h +++ b/include/uapi/linux/eventpoll.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ /* * include/linux/eventpoll.h ( Efficient event polling implementation ) * Copyright (C) 2001,...,2006 Davide Libenzi @@ -26,6 +27,29 @@ #define EPOLL_CTL_DEL 2 #define EPOLL_CTL_MOD 3 +/* Epoll event masks */ +#define EPOLLIN (__force __poll_t)0x00000001 +#define EPOLLPRI (__force __poll_t)0x00000002 +#define EPOLLOUT (__force __poll_t)0x00000004 +#define EPOLLERR (__force __poll_t)0x00000008 +#define EPOLLHUP (__force __poll_t)0x00000010 +#define EPOLLNVAL (__force __poll_t)0x00000020 +#define EPOLLRDNORM (__force __poll_t)0x00000040 +#define EPOLLRDBAND (__force __poll_t)0x00000080 +#define EPOLLWRNORM (__force __poll_t)0x00000100 +#define EPOLLWRBAND (__force __poll_t)0x00000200 +#define EPOLLMSG (__force __poll_t)0x00000400 +#define EPOLLRDHUP (__force __poll_t)0x00002000 + +/* + * Internal flag - wakeup generated by io_uring, used to detect recursion back + * into the io_uring poll handler. + */ +#define EPOLL_URING_WAKE ((__force __poll_t)(1U << 27)) + +/* Set exclusive wakeup mode for the target file descriptor */ +#define EPOLLEXCLUSIVE ((__force __poll_t)(1U << 28)) + /* * Request the handling of system wakeup events so as to prevent system suspends * from happening while those events are being processed. @@ -36,13 +60,13 @@ * * Requires CAP_BLOCK_SUSPEND */ -#define EPOLLWAKEUP (1 << 29) +#define EPOLLWAKEUP ((__force __poll_t)(1U << 29)) /* Set the One Shot behaviour for the target file descriptor */ -#define EPOLLONESHOT (1 << 30) +#define EPOLLONESHOT ((__force __poll_t)(1U << 30)) /* Set the Edge Triggered behaviour for the target file descriptor */ -#define EPOLLET (1 << 31) +#define EPOLLET ((__force __poll_t)(1U << 31)) /* * On x86-64 make the 64bit structure have the same alignment as the @@ -57,9 +81,21 @@ #endif struct epoll_event { - __u32 events; + __poll_t events; __u64 data; } EPOLL_PACKED; +struct epoll_params { + __u32 busy_poll_usecs; + __u16 busy_poll_budget; + __u8 prefer_busy_poll; + + /* pad the struct to a multiple of 64bits */ + __u8 __pad; +}; + +#define EPOLL_IOC_TYPE 0x8A +#define EPIOCSPARAMS _IOW(EPOLL_IOC_TYPE, 0x01, struct epoll_params) +#define EPIOCGPARAMS _IOR(EPOLL_IOC_TYPE, 0x02, struct epoll_params) #endif /* _UAPI_LINUX_EVENTPOLL_H */ |