Function report |
Source Code:fs\io_uring.c |
Create Date:2022-07-28 20:22:16 |
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_timeout_prep
Proto:static int io_timeout_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe, bool is_timeout_link)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
struct io_kiocb * | req | |
const struct io_uring_sqe * | sqe | |
bool | is_timeout_link |
2906 | If Value for the false possibility is greater at compile time(flags & _context is polled ) Then Return -EINVAL |
2908 | If prio for the request || dex into fixed buffers, if used || uffer size or number of iovecs != 1 Then Return -EINVAL |
2910 | If ffset into file && is_timeout_link Then Return -EINVAL |
2912 | flags = READ_ONCE(timeout_flags) |
2913 | If flags & ~sqe->timeout_flags Then Return -EINVAL |
2916 | count = READ_ONCE(ffset into file ) |
2918 | If Not io && io_alloc_async_ctx(req) Then Return -ENOMEM |
2923 | flags |= imeout request |
2925 | If get_timespec64( & ts, u64_to_user_ptr(pointer to buffer or iovecs )) Then Return -EFAULT |
2928 | If flags & sqe->timeout_flags Then mode = Time value is absolute |
2930 | Else mode = Time value is relative to now |
2934 | Return 0 |
Name | Describe |
---|---|
io_req_defer_prep | |
io_issue_sqe |
Source code conversion tool public plug-in interface | X |
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