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authorYan Zheng <yanzheng@21cn.com>2007-10-08 10:08:37 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-08 12:58:14 -0700
commit745ad48e8cac47beec0b2f72dc3c64424bce1fec (patch)
treea16a8eedb7d6e27eaba86fd0cca8ea7bfd0cdcd8
parentdd204d63cd11509081b41d7ab305fdc173382039 (diff)
downloadop-kernel-dev-745ad48e8cac47beec0b2f72dc3c64424bce1fec.zip
op-kernel-dev-745ad48e8cac47beec0b2f72dc3c64424bce1fec.tar.gz
fix page release issue in filemap_fault
find_lock_page increases page's usage count, we should decrease it before return VM_FAULT_SIGBUS Signed-off-by: Yan Zheng<yanzheng@21cn.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/filemap.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index 90b657b..15c8413 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1388,6 +1388,7 @@ retry_find:
size = (i_size_read(inode) + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
if (unlikely(vmf->pgoff >= size)) {
unlock_page(page);
+ page_cache_release(page);
goto outside_data_content;
}
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