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authorBob Liu <lliubbo@gmail.com>2010-10-26 14:22:09 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-26 16:52:11 -0700
commitf6a3607e5f30dc642bead8cd95c48d47b6b4bfbb (patch)
tree42a2f04238eb2090e1d13914f92489e4029b4a2d /mm/page_isolation.c
parent572438f9b52236bd8938b1647cc15e027d27ef55 (diff)
downloadlinux-f6a3607e5f30dc642bead8cd95c48d47b6b4bfbb.tar.gz
mm: page_isolation: codeclean fix comment and rm unneeded val init
__test_page_isolated_in_pageblock() returns 1 if all pages in the range are isolated, so fix the comment. Variable `pfn' will be initialised in the following loop so remove it. Signed-off-by: Bob Liu <lliubbo@gmail.com> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Mel Gorman <mel@csn.ul.ie> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_isolation.c')
-rw-r--r--mm/page_isolation.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/mm/page_isolation.c b/mm/page_isolation.c
index 5e0ffd96745..4ae42bb4089 100644
--- a/mm/page_isolation.c
+++ b/mm/page_isolation.c
@@ -86,7 +86,7 @@ undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn)
* all pages in [start_pfn...end_pfn) must be in the same zone.
* zone->lock must be held before call this.
*
- * Returns 0 if all pages in the range is isolated.
+ * Returns 1 if all pages in the range is isolated.
*/
static int
__test_page_isolated_in_pageblock(unsigned long pfn, unsigned long end_pfn)
@@ -119,7 +119,6 @@ int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn)
struct zone *zone;
int ret;
- pfn = start_pfn;
/*
* Note: pageblock_nr_page != MAX_ORDER. Then, chunks of free page
* is not aligned to pageblock_nr_pages.