is_vma_resv_set

函数名称：is_vma_resv_set

函数原型：static int is_vma_resv_set(struct vm_area_struct *vma, unsigned long flag)

返回类型：int

参数：

类型	参数	名称
struct vm_area_struct *	vma
unsigned long	flag

744

VM_BUG_ON_VMA(!is_vm_hugetlb_page(vma), vma)

746

返回:These helpers are used to track how many pages are reserved for* faults in a MAP_PRIVATE mapping按位与flag的值不等于0

**调用者**
名称	描述
vma_has_reserves	Returns true if the VMA has associated reserve pages
__vma_reservation_common
hugetlb_vm_op_open
hugetlb_vm_op_close
unmap_ref_private	This is called when the original mapper is failing to COW a MAP_PRIVATE* mappping it owns the reserve page for. The intention is to unmap the page* from other VMAs and let the children be SIGKILLed if they are faulting the* same region.
hugetlb_cow	Hugetlb_cow() should be called with page lock of the original hugepage held.* Called with hugetlb_instantiation_mutex held and pte_page locked so we* cannot race with other handlers or page migration.
hugetlb_no_page
hugetlb_reserve_pages

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