lock_page_or

函数名称：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().

函数原型：static inline int lock_page_or_retry(struct page *page, struct mm_struct *mm, unsigned int flags)

返回类型：int

参数：

类型	参数	名称
struct page *	page
struct mm_struct *	mm
unsigned int	flags

506

might_sleep()

507

返回:Return true if the page was successfully locked或__lock_page_or_retry(page, mm, flags)

**调用者**
名称	描述
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

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告