get_anon_vma

Name:get_anon_vma

Proto:static inline void get_anon_vma(struct anon_vma *anon_vma)

Type:void

Parameter:

Type	Parameter	Name
struct anon_vma *	anon_vma

107

atomic_inc( & The refcount is taken on an anon_vma when there is no* guarantee that the vma of page tables will exist for* the duration of the operation. A caller that takes* the reference is responsible for clearing up the* anon_vma if they are the last user on release)

**Caller**
Name	Describe
anon_vma_fork	Attach vma to its own anon_vma, as well as to the anon_vmas that* the corresponding VMA in the parent process is attached to.* Returns 0 on success, non-zero on failure.
try_to_merge_with_ksm_page	ry_to_merge_with_ksm_page - like try_to_merge_two_pages,* but no new kernel page is allocated: kpage must already be a ksm page.* This function returns 0 if the pages were merged, -EFAULT otherwise.

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