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authorNick Piggin <npiggin@suse.de>2007-07-20 00:31:45 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-20 08:44:19 -0700
commit1833633803c7ef4d8f09877d3f1549cbd252f477 (patch)
treece69505de705701f838bd77c6b6b6bc18529bed0 /fs/ocfs2
parente228929bc257b963523ed75aa60d2ad77ece2189 (diff)
fix some conversion overflows
Fix page index to offset conversion overflows in buffer layer, ecryptfs, and ocfs2. It would be nice to convert the whole tree to page_offset, but for now just fix the bugs. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Mark Fasheh <mark.fasheh@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ocfs2')
-rw-r--r--fs/ocfs2/mmap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ocfs2/mmap.c b/fs/ocfs2/mmap.c
index ee64749e2ee..98756156d29 100644
--- a/fs/ocfs2/mmap.c
+++ b/fs/ocfs2/mmap.c
@@ -89,7 +89,7 @@ static int __ocfs2_page_mkwrite(struct inode *inode, struct buffer_head *di_bh,
{
int ret;
struct address_space *mapping = inode->i_mapping;
- loff_t pos = page->index << PAGE_CACHE_SHIFT;
+ loff_t pos = page_offset(page);
unsigned int len = PAGE_CACHE_SIZE;
pgoff_t last_index;
struct page *locked_page = NULL;