Messages in this thread Patch in this message | | | Date | Wed, 25 Jun 2008 19:03:36 +0900 | From | KOSAKI Motohiro <> | Subject | [-mm][PATCH 3/10] fix munlock page table walk - now requires 'mm' |
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= From: Lee Schermerhorn <lee.schermerhorn@hp.com>
Against 2.6.26-rc5-mm3.
Initialize the 'mm' member of the mm_walk structure, else the page table walk doesn't occur, and mlocked pages will not be munlocked. This is visible in the vmstats:
noreclaim_pgs_munlocked - should equal noreclaim_pgs_mlocked less (nr_mlock + noreclaim_pgs_cleared), but is always zero [munlock_vma_page() never called]
noreclaim_pgs_mlockfreed - should be zero [for debug only], but == noreclaim_pgs_mlocked - (nr_mlock + noreclaim_pgs_cleared)
Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
mm/mlock.c | 1 + 1 file changed, 1 insertion(+)
Index: b/mm/mlock.c =================================================================== --- a/mm/mlock.c +++ b/mm/mlock.c @@ -301,6 +301,7 @@ static void __munlock_vma_pages_range(st .pmd_entry = __munlock_pmd_handler, .pte_entry = __munlock_pte_handler, .private = &mpw, + .mm = mm, }; VM_BUG_ON(start & ~PAGE_MASK || end & ~PAGE_MASK);
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