vfs_poll

函数名称：vfs_poll

函数原型：static inline __poll_t vfs_poll(struct file *file, struct poll_table_struct *pt)

返回类型：__poll_t

参数：

类型	参数	名称
struct file *	file
struct poll_table_struct *	pt

**调用者**
名称	描述
memcg_write_event_control	DO NOT USE IN NEW FILES.* Parse input and register new cgroup event handler.* Input must be in format ' '.* Interpretation of args is defined by control file implementation.
do_select
do_pollfd	Fish for pollable events on the pollfd->fd file descriptor
ep_item_poll	Differs from ep_eventpoll_poll() in that internal callers already have* the ep->mtx so we need to start from depth=1, such that mutex_lock_nested()* is correctly annotated.
aio_poll_complete_work
aio_poll
io_poll_complete_work
io_poll_add

函数逻辑报告