Function report |
Source Code:include\linux\pagemap.h |
Create Date:2022-07-28 05:45:07 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
home page | Tree |
Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:lock_page_or_retry - Lock the page, unless this would block and the* caller indicated that it can handle a retry.* Return value and mmap_sem implications depend on flags; see* __lock_page_or_retry().
Proto:static inline int lock_page_or_retry(struct page *page, struct mm_struct *mm, unsigned int flags)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
struct page * | page | |
struct mm_struct * | mm | |
unsigned int | flags |
506 | might_sleep() |
507 | Return Return true if the page was successfully locked || __lock_page_or_retry(page, mm, flags) |
Name | Describe |
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do_swap_page | We enter with non-exclusive mmap_sem (to exclude vma changes,* but allow concurrent faults), and pte mapped but not yet locked.* We return with pte unmapped and unlocked.* We return with the mmap_sem locked or unlocked in the same cases |
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