From: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Date: Wed, 3 Jul 2013 22:02:42 +0000 (-0700)
Subject: mm/hugetlb: remove hugetlb_prefault
X-Git-Tag: firefly_0821_release~176^2~5786^2~350
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=5f1e31d2f5977d910d0b2f5018173e99241d1940;p=firefly-linux-kernel-4.4.55.git

mm/hugetlb: remove hugetlb_prefault

hugetlb_prefault() is not used any more, this patch removes it.

Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 89d4fbf681e7..c2b1801a160b 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -55,7 +55,6 @@ void __unmap_hugepage_range_final(struct mmu_gather *tlb,
 void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
 				unsigned long start, unsigned long end,
 				struct page *ref_page);
-int hugetlb_prefault(struct address_space *, struct vm_area_struct *);
 void hugetlb_report_meminfo(struct seq_file *);
 int hugetlb_report_node_meminfo(int, char *);
 void hugetlb_show_meminfo(void);
@@ -114,7 +113,6 @@ static inline unsigned long hugetlb_total_pages(void)
 #define follow_hugetlb_page(m,v,p,vs,a,b,i,w)	({ BUG(); 0; })
 #define follow_huge_addr(mm, addr, write)	ERR_PTR(-EINVAL)
 #define copy_hugetlb_page_range(src, dst, vma)	({ BUG(); 0; })
-#define hugetlb_prefault(mapping, vma)		({ BUG(); 0; })
 static inline void hugetlb_report_meminfo(struct seq_file *m)
 {
 }