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mm: remove vma arg from page_evictable

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page_evictable(page, vma) is an irritant: almost all its callers pass
NULL for vma.  Remove the vma arg and use mlocked_vma_newpage(vma, page)
explicitly in the couple of places it's needed.  But in those places we
don't even need page_evictable() itself!  They're dealing with a freshly
allocated anonymous page, which has no "mapping" and cannot be mlocked yet.

Signed-off-by: Hugh Dickins <[email protected]>
Acked-by: Mel Gorman <[email protected]>
Cc: Rik van Riel <[email protected]>
Acked-by: Johannes Weiner <[email protected]>
Cc: Michel Lespinasse <[email protected]>
Cc: Ying Han <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Hugh Dickins 2012-10-08 16:33:18 -07:00 • committed by Linus Torvalds
commit 39b5f29ac1
7 changed files with 18 additions and 32 deletions
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5
mm/internal.h
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@ -168,9 +168,8 @@ static inline void munlock_vma_pages_all(struct vm_area_struct *vma)
}
/*
* Called only in fault path via page_evictable() for a new page
* to determine if it's being mapped into a LOCKED vma.
* If so, mark page as mlocked.
* Called only in fault path, to determine if a new page is being
* mapped into a LOCKED vma. If it is, mark page as mlocked.
*/
static inline int mlocked_vma_newpage(struct vm_area_struct *vma,
struct page *page)