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authorNaoya Horiguchi <n-horiguchi@ah.jp.nec.com>2015-04-15 16:14:41 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-04-15 16:35:19 -0700
commit7e1f049efb86bd86c06b80eeac0ef80cdeb8c0e7 (patch)
treef98ef2ddc292f1a6d9337cba73864618e7fcbcae /include
parentbcc54222309c70ebcb6c69c156fba4a13dee0a3b (diff)
downloadlinux-7e1f049efb86bd86c06b80eeac0ef80cdeb8c0e7.tar.bz2
mm: hugetlb: cleanup using paeg_huge_active()
Now we have an easy access to hugepages' activeness, so existing helpers to get the information can be cleaned up. [akpm@linux-foundation.org: s/PageHugeActive/page_huge_active/] Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Hugh Dickins <hughd@google.com> Reviewed-by: Michal Hocko <mhocko@suse.cz> Cc: Mel Gorman <mgorman@suse.de> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/hugetlb.h2
-rw-r--r--include/linux/page-flags.h7
2 files changed, 7 insertions, 2 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 5713c49a4a5c..205026175c42 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -84,7 +84,6 @@ void hugetlb_unreserve_pages(struct inode *inode, long offset, long freed);
int dequeue_hwpoisoned_huge_page(struct page *page);
bool isolate_huge_page(struct page *page, struct list_head *list);
void putback_active_hugepage(struct page *page);
-bool is_hugepage_active(struct page *page);
void free_huge_page(struct page *page);
#ifdef CONFIG_ARCH_WANT_HUGE_PMD_SHARE
@@ -152,7 +151,6 @@ static inline bool isolate_huge_page(struct page *page, struct list_head *list)
return false;
}
#define putback_active_hugepage(p) do {} while (0)
-#define is_hugepage_active(x) false
static inline unsigned long hugetlb_change_protection(struct vm_area_struct *vma,
unsigned long address, unsigned long end, pgprot_t newprot)
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 84d10b65cec6..f34e040b34e9 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -470,11 +470,18 @@ static inline void ClearPageCompound(struct page *page)
#ifdef CONFIG_HUGETLB_PAGE
int PageHuge(struct page *page);
int PageHeadHuge(struct page *page);
+bool page_huge_active(struct page *page);
#else
TESTPAGEFLAG_FALSE(Huge)
TESTPAGEFLAG_FALSE(HeadHuge)
+
+static inline bool page_huge_active(struct page *page)
+{
+ return 0;
+}
#endif
+
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
/*
* PageHuge() only returns true for hugetlbfs pages, but not for