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Add a comment describing pmap_extract_and_hold() noting that the protection

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check still needs implementation on arm.
This commit is contained in:
Alan Cox 2004-08-10 21:43:40 +00:00
parent 80efc187ed
commit 6306df6b89
1 changed files with 7 additions and 0 deletions
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7
sys/arm/arm/pmap.c
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@ -3546,6 +3546,13 @@ pmap_extract(pmap_t pm, vm_offset_t va)
return (pa);
}
/*
* Atomically extract and hold the physical page with the given
* pmap and virtual address pair if that mapping permits the given
* protection.
*
* XXX Need to implement the protection check.
*/
vm_page_t
pmap_extract_and_hold(pmap_t pmap, vm_offset_t va, vm_prot_t prot)
{