Function report |
Source Code:fs\io_uring.c |
Create Date:2022-07-28 20:22:22 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:io_uring_poll
Proto:static __poll_t io_uring_poll(struct file *file, poll_table *wait)
Type:__poll_t
Parameter:
Type | Parameter | Name |
---|---|---|
struct file * | file | |
poll_table * | wait |
4972 | mask = 0 |
4979 | smp_rmb() |
4980 | If READ_ONCE(tail) - cached_sq_head != Ring sizes (constant, power of 2) Then mask |= EPOLLOUT | EPOLLWRNORM |
4983 | If io_cqring_events(ctx, false) Then mask |= Epoll event masks | EPOLLRDNORM |
4986 | Return mask |
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