Function report |
Source Code:mm\mmap.c |
Create Date:2022-07-28 14:47:55 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Name:is_mergeable_anon_vma
Proto:static inline int is_mergeable_anon_vma(struct anon_vma *anon_vma1, struct anon_vma *anon_vma2, struct vm_area_struct *vma)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
struct anon_vma * | anon_vma1 | |
struct anon_vma * | anon_vma2 | |
struct vm_area_struct * | vma |
1016 | If ( Not anon_vma1 || Not anon_vma2 ) && ( Not vma || list_is_singular - tests whether a list has just one entry.*@head: the list to test.) Then Return 1 |
Name | Describe |
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can_vma_merge_before | Return true if we can merge this (vm_flags,anon_vma,file,vm_pgoff)* in front of (at a lower virtual address and file offset than) the vma.* We cannot merge two vmas if they have differently assigned (non-NULL) |
can_vma_merge_after | Return true if we can merge this (vm_flags,anon_vma,file,vm_pgoff)* beyond (at a higher virtual address and file offset than) the vma.* We cannot merge two vmas if they have differently assigned (non-NULL) |
vma_merge | Given a mapping request (addr,end,vm_flags,file,pgoff), figure out* whether that can be merged with its predecessor or its successor |
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