Function report |
Source Code:fs\userfaultfd.c |
Create Date:2022-07-28 20:20:34 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:userfaultfd_poll
Proto:static __poll_t userfaultfd_poll(struct file *file, poll_table *wait)
Type:__poll_t
Parameter:
Type | Parameter | Name |
---|---|---|
struct file * | file | |
poll_table * | wait |
984 | Case state machine == UFFD_STATE_WAIT_API |
985 | Return EPOLLERR |
986 | Case state machine == UFFD_STATE_RUNNING |
991 | If Value for the false possibility is greater at compile time(!(f_flags & O_NONBLOCK)) Then Return EPOLLERR |
1003 | ret = 0 |
1004 | smp_mb() |
1010 | Return ret |
1011 | Default |
1012 | WARN_ON_ONCE(1) |
1013 | Return EPOLLERR |
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