diff options
| author | zhong jiang <zhongjiang@huawei.com> | 2016-07-28 15:45:07 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-28 16:07:41 -0700 |
| commit | 400bc7fd4fa7d33c96d836e6b65eeed246f1959a (patch) | |
| tree | a86dc157557715af3cfe61f98a1c8863e9633052 | |
| parent | 091f362c53c24ca9751727a699d63e50528c306b (diff) | |
mm: update the comment in __isolate_free_page
We need to assure the comment is consistent with the code.
[akpm@linux-foundation.org: coding-style fixes]
Link: http://lkml.kernel.org/r/1466171914-21027-1-git-send-email-zhongjiang@huawei.com
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/page_alloc.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 452513bf02ce..b6d38b1c1cdb 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2517,7 +2517,10 @@ int __isolate_free_page(struct page *page, unsigned int order) zone->free_area[order].nr_free--; rmv_page_order(page); - /* Set the pageblock if the isolated page is at least a pageblock */ + /* + * Set the pageblock if the isolated page is at least half of a + * pageblock + */ if (order >= pageblock_order - 1) { struct page *endpage = page + (1 << order) - 1; for (; page < endpage; page += pageblock_nr_pages) { |