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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>
This commit is contained in:
Andrew Morton 2014-01-21 15:48:57 -08:00 committed by Linus Torvalds
parent 3bfcd13ec0
commit 758f66a29c
1 changed files with 2 additions and 10 deletions
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12
mm/hugetlb.c
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@ -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);