From 0ebabb416f585ace711769057422af4bbc9d1110 Mon Sep 17 00:00:00 2001 From: Naoya Horiguchi Date: Wed, 8 Sep 2010 10:19:34 +0900 Subject: 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 Acked-by: Mel Gorman Reviewed-by: Christoph Lameter Signed-off-by: Andi Kleen --- include/linux/hugetlb.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux/hugetlb.h') diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 0b73c53..9e51f77 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) -- cgit v1.1