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| author | Andrew Morton <akpm@linux-foundation.org> | 2012-10-08 16:34:11 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-09 16:23:03 +0900 |
| commit | 7795912c257bc068445f1db429c94d6b4b6ee604 (patch) | |
| tree | baf49e5f849cc9b36e989ae3a0c02e7d55d30021 /mm/hugetlb.c | |
| parent | 45ec16908e84e00d847e9063231fb3a75e6366bc (diff) | |
| download | lwn-7795912c257bc068445f1db429c94d6b4b6ee604.tar.gz lwn-7795912c257bc068445f1db429c94d6b4b6ee604.zip | |
mm: document PageHuge somewhat
Acked-by: David Rientjes <rientjes@google.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/hugetlb.c')
| -rw-r--r-- | mm/hugetlb.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 993f7c1820a8..59a0059b39e2 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -671,6 +671,11 @@ static void prep_compound_gigantic_page(struct page *page, unsigned long order) } } +/* + * PageHuge() only returns true for hugetlbfs pages, but not for normal or + * transparent huge pages. See the PageTransHuge() documentation for more + * details. + */ int PageHuge(struct page *page) { compound_page_dtor *dtor; |