The patch titled
page allocator: update NR_FREE_PAGES only when necessary
has been added to the -mm tree. Its filename is
page-allocator-fix-update-nr_free_pages-only-as-necessary.patch
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------------------------------------------------------
Subject: page allocator: update NR_FREE_PAGES only when necessary
From: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
commit f2260e6b (page allocator: update NR_FREE_PAGES only as necessary)
made one minor regression. if __rmqueue() was failed, NR_FREE_PAGES stat
go wrong. this patch fixes it.
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Cc: Mel Gorman <mel@xxxxxxxxx>
Cc: Huang Shijie <shijie8@xxxxxxxxx>
Reviewed-by : Minchan Kim <minchan.kim@xxxxxxxxx>
Cc: Huang Shijie <shijie8@xxxxxxxxx>
Reviewed-by: Christoph Lameter <cl@xxxxxxxxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/page_alloc.c~page-allocator-fix-update-nr_free_pages-only-as-necessary mm/page_alloc.c
--- a/mm/page_alloc.c~page-allocator-fix-update-nr_free_pages-only-as-necessary
+++ a/mm/page_alloc.c
@@ -1219,10 +1219,10 @@ again:
}
spin_lock_irqsave(&zone->lock, flags);
page = __rmqueue(zone, order, migratetype);
- __mod_zone_page_state(zone, NR_FREE_PAGES, -(1 << order));
spin_unlock(&zone->lock);
if (!page)
goto failed;
+ __mod_zone_page_state(zone, NR_FREE_PAGES, -(1 << order));
}
__count_zone_vm_events(PGALLOC, zone, 1 << order);
_
Patches currently in -mm which might be from kosaki.motohiro@xxxxxxxxxxxxxx are
proc-revert-procfs-provide-stack-information-for-threads.patch
smaps-fix-wrong-rss-count.patch
linux-next.patch
page-allocator-fix-update-nr_free_pages-only-as-necessary.patch
mm-introduce-dump_page-and-print-symbolic-flag-names.patch
mlock_vma_pages_range-never-return-negative-value.patch
mlock_vma_pages_range-only-return-success-or-failure.patch
prctl-add-pr_set_proctitle_area-option-for-prctl.patch
mm-pass-mm-flags-as-a-coredump-parameter-for-consistency.patch
fs-symlink-write_begin-allocation-context-fix-reiser4-fix.patch
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