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authorNaoya Horiguchi <n-horiguchi@ah.jp.nec.com>2010-09-08 10:19:34 +0900
committerAndi Kleen <ak@linux.intel.com>2010-10-08 09:32:44 +0200
commit0ebabb416f585ace711769057422af4bbc9d1110 (patch)
treed23d66033fdaefec9c2b4051f108b948c5389d0e /include/linux/hugetlb.h
parentbf50bab2b34483316162443587b8467952e07730 (diff)
hugetlb: redefine hugepage copy functions
This patch modifies hugepage copy functions to have only destination and source hugepages as arguments for later use. The old ones are renamed from copy_{gigantic,huge}_page() to copy_user_{gigantic,huge}_page(). This naming convention is consistent with that between copy_highpage() and copy_user_highpage(). ChangeLog since v4: - add blank line between local declaration and code - remove unnecessary might_sleep() ChangeLog since v2: - change copy_huge_page() from macro to inline dummy function to avoid compile warning when !CONFIG_HUGETLB_PAGE. Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Acked-by: Mel Gorman <mel@csn.ul.ie> Reviewed-by: Christoph Lameter <cl@linux.com> Signed-off-by: Andi Kleen <ak@linux.intel.com>
Diffstat (limited to 'include/linux/hugetlb.h')
-rw-r--r--include/linux/hugetlb.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 0b73c536afd2..9e51f77d44ca 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -44,6 +44,7 @@ int hugetlb_reserve_pages(struct inode *inode, long from, long to,
int acctflags);
void hugetlb_unreserve_pages(struct inode *inode, long offset, long freed);
void __isolate_hwpoisoned_huge_page(struct page *page);
+void copy_huge_page(struct page *dst, struct page *src);
extern unsigned long hugepages_treat_as_movable;
extern const unsigned long hugetlb_zero, hugetlb_infinity;
@@ -102,6 +103,9 @@ static inline void hugetlb_report_meminfo(struct seq_file *m)
#define hugetlb_fault(mm, vma, addr, flags) ({ BUG(); 0; })
#define huge_pte_offset(mm, address) 0
#define __isolate_hwpoisoned_huge_page(page) 0
+static inline void copy_huge_page(struct page *dst, struct page *src)
+{
+}
#define hugetlb_change_protection(vma, address, end, newprot)