Skip to content
charmOS docs

Anonymous VMA Chain

include/mem/avc.h View source View on GitHub

Structs

Section titled “Structs”

anon_vma_chain

Section titled “anon_vma_chain”
struct anon_vma_chain (4 fields) source
§ struct vma_range *vma_range
§ struct anon_vma *anon_vma
§ struct list_node same_vma_range

on vma_range->anon_vma_chain

§ struct rbit_node itnode

in anon_vma->tree

Functions

Section titled “Functions”

avc_alloc

Section titled “avc_alloc”
struct anon_vma_chain * avc_alloc(void)
source

avc_free

Section titled “avc_free”
void avc_free(struct anon_vma_chain *avc)
source
Section titled “avc_link”
void avc_link(
    struct vma_range *vma_range,
    struct anon_vma *av,
    struct anon_vma_chain *avc
)
source

Link a vma_range to an anon_vma: push onto vma_range’s list AND insert into av’s tree

Section titled “avc_unlink”
void avc_unlink(struct anon_vma_chain *avc)
source

avc_rekey

Section titled “avc_rekey”
void avc_rekey(struct anon_vma_chain *avc)
source

re-key AVC after vma_range page range changed, reinsert tree node afterwards

avc_first

Section titled “avc_first”
pgoff_t avc_first(const struct anon_vma_chain *a)
source

what the tree is keyed on

avc_last

Section titled “avc_last”
pgoff_t avc_last(const struct anon_vma_chain *a)
source