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| author | Andrew Morton | 2014-01-22 00:48:57 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2014-01-22 01:19:43 +0100 |
| commit | 758f66a29ccc6383353fd395aa04be15e8dea445 (patch) | |
| tree | 98aa821210f14cab5e7ebe07cc4f6a1047583883 /mm/hugetlb.c | |
| parent | mm: hugetlbfs: use __compound_tail_refcounted in __get_page_tail too (diff) | |
| download | kernel-qcow2-linux-758f66a29ccc6383353fd395aa04be15e8dea445.tar.gz kernel-qcow2-linux-758f66a29ccc6383353fd395aa04be15e8dea445.tar.xz kernel-qcow2-linux-758f66a29ccc6383353fd395aa04be15e8dea445.zip | |
mm/hugetlb.c: simplify PageHeadHuge() and PageHuge()
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: Khalid Aziz <khalid.aziz@oracle.com>
Cc: Pravin Shelar <pshelar@nicira.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Johannes Weiner <jweiner@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Minchan Kim <minchan@kernel.org>
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 | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 7596e104bffa..1d9125360bf5 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -690,15 +690,11 @@ static void prep_compound_gigantic_page(struct page *page, unsigned long order) */ int PageHuge(struct page *page) { - compound_page_dtor *dtor; - if (!PageCompound(page)) return 0; page = compound_head(page); - dtor = get_compound_page_dtor(page); - - return dtor == free_huge_page; + return get_compound_page_dtor(page) == free_huge_page; } EXPORT_SYMBOL_GPL(PageHuge); @@ -708,14 +704,10 @@ EXPORT_SYMBOL_GPL(PageHuge); */ int PageHeadHuge(struct page *page_head) { - compound_page_dtor *dtor; - if (!PageHead(page_head)) return 0; - dtor = get_compound_page_dtor(page_head); - - return dtor == free_huge_page; + return get_compound_page_dtor(page_head) == free_huge_page; } EXPORT_SYMBOL_GPL(PageHeadHuge); |