unmap_single

Name:unmap_single_vma

Proto:static void unmap_single_vma(struct mmu_gather *tlb, struct vm_area_struct *vma, unsigned long start_addr, unsigned long end_addr, struct zap_details *details)

Type:void

Parameter:

Type	Parameter	Name
struct mmu_gather *	tlb
struct vm_area_struct *	vma
unsigned long	start_addr
unsigned long	end_addr
struct zap_details *	details

1266

start = max - return maximum of two values of the same or compatible types*@x: first value*@y: second value(Our start address within vm_mm. , start_addr)

1269

If start >= The first byte after our end addresswithin vm_mm. Then Return

1271

end = min - return minimum of two values of the same or compatible types*@x: first value*@y: second value(The first byte after our end addresswithin vm_mm. , end_addr)

1272

If end <= Our start address within vm_mm. Then Return

1275

If File we map to (can be NULL). Then Called in context of a munmap of a vma.

1278

If Value for the false possibility is greater at compile time(Flags, see mm.h. & Page-ranges managed without "struct page", just pure PFN ) Then untrack_pfn(vma, 0, 0)

1281

If start != end Then

1282

If Value for the false possibility is greater at compile time(is_vm_hugetlb_page(vma)) Then

1294

If File we map to (can be NULL). Then

1295

i_mmap_lock_write(f_mapping)

1296

__unmap_hugepage_range_final(tlb, vma, start, end, NULL)

1297

i_mmap_unlock_write(f_mapping)

1299

Else unmap_page_range(tlb, vma, start, end, details)

**Caller**
Name	Describe
unmap_vmas	map_vmas - unmap a range of memory covered by a list of vma's@tlb: address of the caller's struct mmu_gather@vma: the starting vma@start_addr: virtual address at which to start unmapping@end_addr: virtual address at which to end unmapping
zap_page_range	zap_page_range - remove user pages in a given range@vma: vm_area_struct holding the applicable pages@start: starting address of pages to zap@size: number of bytes to zap Caller must protect the VMA list
zap_page_range_single	zap_page_range_single - remove user pages in a given range@vma: vm_area_struct holding the applicable pages@address: starting address of pages to zap@size: number of bytes to zap@details: details of shared cache invalidation

Source code conversion tool public plug-in interface	X
Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion

Function report