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authorHugh Dickins <hughd@google.com>2016-05-20 03:12:54 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-20 05:12:14 +0300
commitbf8616d5fa179d6c755f06726567c6d63c6fbbc7 (patch)
treee9bb568bea162e3f66da723d09d21449638b3878 /mm/mremap.c
parent52b6f46bc163eef17ecba4cd552beeafe2b24453 (diff)
downloadlinux-bf8616d5fa179d6c755f06726567c6d63c6fbbc7.tar.xz
huge mm: move_huge_pmd does not need new_vma
Remove move_huge_pmd()'s redundant new_vma arg: all it was used for was a VM_NOHUGEPAGE check on new_vma flags, but the new_vma is cloned from the old vma, so a trans_huge_pmd in the new_vma will be as acceptable as it was in the old vma, alignment and size permitting. Signed-off-by: Hugh Dickins <hughd@google.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Andres Lagar-Cavilla <andreslc@google.com> Cc: Yang Shi <yang.shi@linaro.org> Cc: Ning Qu <quning@gmail.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Andres Lagar-Cavilla <andreslc@google.com> Cc: Konstantin Khlebnikov <koct9i@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mremap.c')
-rw-r--r--mm/mremap.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/mm/mremap.c b/mm/mremap.c
index 3fa0a467df66..7d98fe1adc12 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -198,9 +198,8 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
/* See comment in move_ptes() */
if (need_rmap_locks)
anon_vma_lock_write(vma->anon_vma);
- moved = move_huge_pmd(vma, new_vma, old_addr,
- new_addr, old_end,
- old_pmd, new_pmd);
+ moved = move_huge_pmd(vma, old_addr, new_addr,
+ old_end, old_pmd, new_pmd);
if (need_rmap_locks)
anon_vma_unlock_write(vma->anon_vma);
if (moved) {