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authorLuiz Capitulino <lcapitulino@redhat.com>2014-06-04 16:07:08 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-04 16:53:59 -0700
commitbae7f4ae14d47008a11b4358b167cb0ae186c06a (patch)
treefd5594eddfb5b249b67f2704032f3dda209f247e /include/linux/hugetlb.h
parent2906dd52831b6049e1d4d9b12f6f234bf2f64a03 (diff)
downloadop-kernel-dev-bae7f4ae14d47008a11b4358b167cb0ae186c06a.zip
op-kernel-dev-bae7f4ae14d47008a11b4358b167cb0ae186c06a.tar.gz
hugetlb: add hstate_is_gigantic()
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Reviewed-by: Andrea Arcangeli <aarcange@redhat.com> Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Reviewed-by: Davidlohr Bueso <davidlohr@hp.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reviewed-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Cc: David Rientjes <rientjes@google.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Rik van Riel <riel@redhat.com> Cc: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/hugetlb.h')
-rw-r--r--include/linux/hugetlb.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index d0bad1a..35786ee 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -343,6 +343,11 @@ static inline unsigned huge_page_shift(struct hstate *h)
return h->order + PAGE_SHIFT;
}
+static inline bool hstate_is_gigantic(struct hstate *h)
+{
+ return huge_page_order(h) >= MAX_ORDER;
+}
+
static inline unsigned int pages_per_huge_page(struct hstate *h)
{
return 1 << h->order;
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