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| author | Bob Liu <lliubbo@gmail.com> | 2010-10-26 14:22:09 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-26 16:52:11 -0700 |
| commit | f6a3607e5f30dc642bead8cd95c48d47b6b4bfbb (patch) | |
| tree | 42a2f04238eb2090e1d13914f92489e4029b4a2d | |
| parent | 572438f9b52236bd8938b1647cc15e027d27ef55 (diff) | |
| download | linux-3.10-f6a3607e5f30dc642bead8cd95c48d47b6b4bfbb.tar.gz linux-3.10-f6a3607e5f30dc642bead8cd95c48d47b6b4bfbb.tar.bz2 linux-3.10-f6a3607e5f30dc642bead8cd95c48d47b6b4bfbb.zip | |
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>
| -rw-r--r-- | mm/page_isolation.c | 3 |
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. |