Function report |
Source Code:mm\madvise.c |
Create Date:2022-07-28 15:12:41 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:Application wants to free up the pages and associated backing store.* This is effectively punching a hole into the middle of a file.
Proto:static long madvise_remove(struct vm_area_struct *vma, struct vm_area_struct **prev, unsigned long start, unsigned long end)
Type:long
Parameter:
Type | Parameter | Name |
---|---|---|
struct vm_area_struct * | vma | |
struct vm_area_struct ** | prev | |
unsigned long | start | |
unsigned long | end |
822 | * prev = NULL |
824 | If Flags, see mm.h. & VM_LOCKED Then Return -EINVAL |
830 | Return -EINVAL |
836 | offset = start - Our start address within vm_mm. + (Offset (within vm_file) in PAGE_SIZEunits << PAGE_SHIFT determines the page size ) |
846 | If userfaultfd_remove(vma, start, end) Then |
850 | error = vfs_fallocate(f, de-allocates range | default is extend size , offset, end - start) |
854 | lock for reading |
855 | Return error |
Name | Describe |
---|---|
madvise_vma |
Source code conversion tool public plug-in interface | X |
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Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion |