Commit bd65cb86 authored Mar 22, 2011 by Minchan Kim Committed by Linus Torvalds Mar 22, 2011

mm: hugetlbfs: change remove_from_page_cache



This patch series changes remove_from_page_cache()'s page ref counting
rule.  Page cache ref count is decreased in delete_from_page_cache().  So
we don't need to decrease the page reference in callers.

Signed-off-by: Minchan Kim <minchan.kim@gmail.com>
Cc: William Irwin <wli@holomorphy.com>
Acked-by: Hugh Dickins <hughd@google.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reviewed-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 97cecb5a

fs/hugetlbfs/inode.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -332,8 +332,7 @@ static void truncate_huge_page(struct page *page)
		{
		cancel_dirty_page(page, /* No IO accounting for huge pages? */0);
		ClearPageUptodate(page);
		remove_from_page_cache(page);
		put_page(page);
		delete_from_page_cache(page);
		}

		static void truncate_hugepages(struct inode *inode, loff_t lstart)