The patch titled
fix munlock page table walk - now requires 'mm'
has been added to the -mm tree. Its filename is
mlock-mlocked-pages-are-unevictable-fix-fix-munlock-page-table-walk-now-requires-mm.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: fix munlock page table walk - now requires 'mm'
From: Lee Schermerhorn <lee.schermerhorn@xxxxxx>
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@xxxxxx>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Cc: Nick Piggin <npiggin@xxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Russ Anderson <rja@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/mlock.c | 1 +
1 file changed, 1 insertion(+)
diff -puN mm/mlock.c~mlock-mlocked-pages-are-unevictable-fix-fix-munlock-page-table-walk-now-requires-mm mm/mlock.c
--- a/mm/mlock.c~mlock-mlocked-pages-are-unevictable-fix-fix-munlock-page-table-walk-now-requires-mm
+++ a/mm/mlock.c
@@ -270,6 +270,7 @@ 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);
_
Patches currently in -mm which might be from lee.schermerhorn@xxxxxx are
page-allocator-inlnie-some-__alloc_pages-wrappers.patch
page-allocator-inlnie-some-__alloc_pages-wrappers-fix.patch
vmscan-use-an-indexed-array-for-lru-variables.patch
define-page_file_cache-function.patch
define-page_file_cache-function-fix.patch
pageflag-helpers-for-configed-out-flags.patch
unevictable-lru-infrastructure.patch
unevictable-lru-infrastructure-fix.patch
unevictable-lru-infrastructure-kconfig-fix.patch
unevictable-lru-page-statistics.patch
unevictable-lru-page-statistics-fix-printk-in-show_free_areas.patch
ramfs-and-ram-disk-pages-are-unevictable.patch
shm_locked-pages-are-unevictable.patch
mlock-mlocked-pages-are-unevictable.patch
mlock-mlocked-pages-are-unevictable-fix.patch
mlock-mlocked-pages-are-unevictable-fix-fix.patch
mlock-mlocked-pages-are-unevictable-fix-3.patch
mlock-mlocked-pages-are-unevictable-fix-fix-munlock-page-table-walk-now-requires-mm.patch
mlock-downgrade-mmap-sem-while-populating-mlocked-regions.patch
mmap-handle-mlocked-pages-during-map-remap-unmap.patch
fix-double-unlock_page-in-2626-rc5-mm3-kernel-bug-at-mm-filemapc-575.patch
mmap-handle-mlocked-pages-during-map-remap-unmap-cleanup.patch
vmstat-mlocked-pages-statistics.patch
swap-cull-unevictable-pages-in-fault-path.patch
vmstat-unevictable-and-mlocked-pages-vm-events.patch
vmscan-unevictable-lru-scan-sysctl.patch
vmscan-unevictable-lru-scan-sysctl-nommu-fix.patch
mlock-count-attempts-to-free-mlocked-page.patch
doc-unevictable-lru-and-mlocked-pages-documentation.patch
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