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authorNick Piggin <nickpiggin@yahoo.com.au>2005-09-03 15:54:48 -0700
committerLinus Torvalds <torvalds@evo.osdl.org>2005-09-05 00:05:43 -0700
commit4d7670e0f649f9e6e6ea6c8bb9f52441fa00f92b (patch)
tree52009a96e89a4fe2ff390cd34a7832c89d28f588 /mm/rmap.c
parent2822c1aa574d277b9ba0130b1e71c1a5874bc04a (diff)
downloadop-kernel-dev-4d7670e0f649f9e6e6ea6c8bb9f52441fa00f92b.zip
op-kernel-dev-4d7670e0f649f9e6e6ea6c8bb9f52441fa00f92b.tar.gz
[PATCH] mm: cleanup rmap
Thanks to Bill Irwin for pointing this out. Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/rmap.c')
-rw-r--r--mm/rmap.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/mm/rmap.c b/mm/rmap.c
index 7e975ca..450f524 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -445,16 +445,12 @@ void page_add_anon_rmap(struct page *page,
if (atomic_inc_and_test(&page->_mapcount)) {
struct anon_vma *anon_vma = vma->anon_vma;
- pgoff_t index;
BUG_ON(!anon_vma);
anon_vma = (void *) anon_vma + PAGE_MAPPING_ANON;
page->mapping = (struct address_space *) anon_vma;
- index = (address - vma->vm_start) >> PAGE_SHIFT;
- index += vma->vm_pgoff;
- index >>= PAGE_CACHE_SHIFT - PAGE_SHIFT;
- page->index = index;
+ page->index = linear_page_index(vma, address);
inc_page_state(nr_mapped);
}
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