函数逻辑报告 |
Source Code:mm\memory.c |
Create Date:2022-07-27 16:10:28 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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函数名称:do_shared_fault
函数原型:static vm_fault_t do_shared_fault(struct vm_fault *vmf)
返回类型:vm_fault_t
参数:
类型 | 参数 | 名称 |
---|---|---|
struct vm_fault * | vmf |
3708 | vma等于Target VMA |
3711 | ret等于The mmap_sem must have been held on entry, and may have been* released depending on flags and vma->vm_ops->fault() return value.* See filemap_fault() and __lock_page_retry(). |
3712 | 如果此条件成立可能性小(为编译器优化)(ret & (VM_FAULT_ERROR | VM_FAULT_NOPAGE | VM_FAULT_RETRY))则返回:ret |
3719 | 如果page_mkwrite则 |
3722 | 如果此条件成立可能性小(为编译器优化)(!tmp || (tmp & (VM_FAULT_ERROR | VM_FAULT_NOPAGE)))则 |
3730 | 如果此条件成立可能性小(为编译器优化)(ret & (VM_FAULT_ERROR | VM_FAULT_NOPAGE | VM_FAULT_RETRY))则 |
3733 | put_page(->fault handlers should return a* page here, unless VM_FAULT_NOPAGE* is set (which is also implied by* VM_FAULT_ERROR).) |
3734 | 返回:ret |
3737 | ret或等于Handle dirtying of a page in shared file mapping on a write fault.* The function expects the page to be locked and unlocks it. |
3738 | 返回:ret |
名称 | 描述 |
---|---|
do_fault | We enter with non-exclusive mmap_sem (to exclude vma changes,* but allow concurrent faults) |
源代码转换工具 开放的插件接口 | X |
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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 |