diff options
author | Jens Axboe <axboe@kernel.dk> | 2020-01-08 15:05:37 -0700 |
---|---|---|
committer | Jens Axboe <axboe@kernel.dk> | 2020-01-29 15:45:47 -0700 |
commit | 39220e8d4a2aaab045ea03cc16d737e85d0817bf (patch) | |
tree | 2f632dd3e4f97820a9bb9de3bc18682c72ba5015 /include/linux/eventpoll.h | |
parent | 58e41a44c488f3e9601fd8150f58377ef8f44889 (diff) | |
download | lwn-39220e8d4a2aaab045ea03cc16d737e85d0817bf.tar.gz lwn-39220e8d4a2aaab045ea03cc16d737e85d0817bf.zip |
eventpoll: support non-blocking do_epoll_ctl() calls
Also make it available outside of epoll, along with the helper that
decides if we need to copy the passed in epoll_event.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/eventpoll.h')
-rw-r--r-- | include/linux/eventpoll.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/eventpoll.h b/include/linux/eventpoll.h index bc6d79b00c4e..8f000fada5a4 100644 --- a/include/linux/eventpoll.h +++ b/include/linux/eventpoll.h @@ -61,6 +61,15 @@ static inline void eventpoll_release(struct file *file) eventpoll_release_file(file); } +int do_epoll_ctl(int epfd, int op, int fd, struct epoll_event *epds, + bool nonblock); + +/* Tells if the epoll_ctl(2) operation needs an event copy from userspace */ +static inline int ep_op_has_event(int op) +{ + return op != EPOLL_CTL_DEL; +} + #else static inline void eventpoll_init_file(struct file *file) {} |