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pagewalk: fix code comment for THP

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Commit bae9c19bf1 ("thp: split_huge_page_mm/vma") changed locking behavior
of walk_page_range().  Thus this patch changes the comment too.

Signed-off-by: KOSAKI Motohiro <[email protected]>
Cc: Naoya Horiguchi <[email protected]>
Cc: Hiroyuki Kamezawa <[email protected]>
Cc: Andrea Arcangeli <[email protected]>
Cc: Matt Mackall <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
KOSAKI Motohiro 2011-07-25 17:12:11 -07:00 • committed by Linus Torvalds
commit dd78553b5e
1 changed files with 2 additions and 1 deletions
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3
mm/pagewalk.c
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@ -176,7 +176,8 @@ static int walk_hugetlb_range(struct vm_area_struct *vma,
* associated range, and a copy of the original mm_walk for access to
* the ->private or ->mm fields.
*
* No locks are taken, but the bottom level iterator will map PTE
* Usually no locks are taken, but splitting transparent huge page may
* take page table lock. And the bottom level iterator will map PTE
* directories from highmem if necessary.
*
* If any callback returns a non-zero value, the walk is aborted and