函数逻辑报告 |
Source Code:mm\migrate.c |
Create Date:2022-07-27 17:32:24 |
| Last Modify:2022-05-20 09:53:13 | Copyright©Brick |
| 首页 | 函数Tree |
| 注解内核,赢得工具 | 下载SCCT | English |
函数名称：Something used the pte of a page under migration. We need to* get to the page and wait until migration is finished.* When we return from this function the fault will be retried.
函数原型：void __migration_entry_wait(struct mm_struct *mm, pte_t *ptep, spinlock_t *ptl)
返回类型：void
参数：
| 类型 | 参数 | 名称 |
|---|---|---|
| struct mm_struct * | mm | |
| pte_t * | ptep | |
| spinlock_t * | ptl |
| 314 | 加自旋锁 |
| 316 | 如果非heck whether a pte points to a swap entry 则转到:out |
| 319 | entry等于Convert the arch-dependent pte representation of a swp_entry_t into an* arch-independent swp_entry_t. |
| 320 | 如果非is_migration_entry(entry)则转到:out |
| 323 | page等于migration_entry_to_page(entry) |
| 330 | 如果非Try to grab a ref unless the page has a refcount of zero, return false if* that is the case.* This can be called when MMU is off so it must not access* any of the virtual mappings.则转到:out |
| 332 | pte_unmap_unlock(ptep, ptl) |
| 334 | 返回 |
| 335 | out : |
| 336 | pte_unmap_unlock(ptep, ptl) |
| 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 |