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mm: rename __mlock_vma_pages_range() to populate_vma_page_range()

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__mlock_vma_pages_range() doesn't necessarily mlock pages.  It depends on
vma flags.  The same codepath is used for MAP_POPULATE.

Let's rename __mlock_vma_pages_range() to populate_vma_page_range().

This patch also drops mlock_vma_pages_range() references from
documentation.  It has gone in cea10a19b7 ("mm: directly use
__mlock_vma_pages_range() in find_extend_vma()").

Signed-off-by: Kirill A. Shutemov <[email protected]>
Acked-by: Linus Torvalds <[email protected]>
Acked-by: David Rientjes <[email protected]>
Cc: Michel Lespinasse <[email protected]>
Cc: Rik van Riel <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Kirill A. Shutemov 2015-04-14 15:44:39 -07:00 • committed by Linus Torvalds
commit fc05f56621
4 changed files with 17 additions and 27 deletions
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12
mm/mlock.c
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@ -206,13 +206,13 @@ out:
}
/**
* __mlock_vma_pages_range() - mlock a range of pages in the vma.
* populate_vma_page_range() - populate a range of pages in the vma.
* @vma: target vma
* @start: start address
* @end: end address
* @nonblocking:
*
* This takes care of making the pages present too.
* This takes care of mlocking the pages too if VM_LOCKED is set.
*
* return 0 on success, negative error code on error.
*
@ -224,7 +224,7 @@ out:
* If @nonblocking is non-NULL, it must held for read only and may be
* released. If it's released, *@nonblocking will be set to 0.
*/
long __mlock_vma_pages_range(struct vm_area_struct *vma,
long populate_vma_page_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end, int *nonblocking)
{
struct mm_struct *mm = vma->vm_mm;
@ -596,7 +596,7 @@ success:
/*
* vm_flags is protected by the mmap_sem held in write mode.
* It's okay if try_to_unmap_one unmaps a page just after we
* set VM_LOCKED, __mlock_vma_pages_range will bring it back.
* set VM_LOCKED, populate_vma_page_range will bring it back.
*/
if (lock)
@ -702,11 +702,11 @@ int __mm_populate(unsigned long start, unsigned long len, int ignore_errors)
if (nstart < vma->vm_start)
nstart = vma->vm_start;
/*
* Now fault in a range of pages. __mlock_vma_pages_range()
* Now fault in a range of pages. populate_vma_page_range()
* double checks the vma flags, so that it won't mlock pages
* if the vma was already munlocked.
*/
ret = __mlock_vma_pages_range(vma, nstart, nend, &locked);
ret = populate_vma_page_range(vma, nstart, nend, &locked);
if (ret < 0) {
if (ignore_errors) {
ret = 0;