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| author | Al Viro <viro@zeniv.linux.org.uk> | 2009-11-24 08:45:24 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2009-12-11 06:30:23 -0500 |
| commit | 935874141df839c706cd6cdc438e85eb69d1525e (patch) | |
| tree | b55c66ff76e35332f8565bf20efd076d9dccf0cb | |
| parent | 097eed103862f9c6a97f2e415e21d1134017b135 (diff) | |
| download | lwn-935874141df839c706cd6cdc438e85eb69d1525e.tar.gz lwn-935874141df839c706cd6cdc438e85eb69d1525e.zip | |
fix pgoff in "have to relocate" case of mremap()
Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | mm/mremap.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/mm/mremap.c b/mm/mremap.c index 84efffb2d2c4..bbbbbf507ff3 100644 --- a/mm/mremap.c +++ b/mm/mremap.c @@ -495,7 +495,9 @@ unsigned long do_mremap(unsigned long addr, map_flags |= MAP_SHARED; new_addr = get_unmapped_area(vma->vm_file, 0, new_len, - vma->vm_pgoff, map_flags); + vma->vm_pgoff + + ((addr - vma->vm_start) >> PAGE_SHIFT), + map_flags); if (new_addr & ~PAGE_MASK) { ret = new_addr; goto out; |