函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\page-flags.h Create Date:2022-07-27 06:40:02
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:__SetPageLocked

函数原型:static inline __attribute__((__always_inline__)) void __SetPageLocked(struct page *page)

返回类型:void

参数:

类型参数名称
struct page *page
312  __set_bit - Set a bit in memory*@nr: the bit to set*@addr: the address to start counting from* Unlike set_bit(), this function is non-atomic. If it is called on the same* region of memory concurrently, the effect may be that only one operation* succeeds.
调用者
名称描述
add_to_page_cache_lru
do_swap_pageWe 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
__read_swap_cache_async
ksm_might_need_to_copy
anon_pipe_buf_steal
add_to_page_cacheLike add_to_page_cache_locked, but used to add newly allocated pages:* the page is new, so we can just run __SetPageLocked() against it.