commit 677ead461448e2727557f32986f2117a79cbf662
Author: Erez_Zadok <[EMAIL PROTECTED]>
Date: Wed Sep 19 23:55:27 2007 -0400
Unionfs: cache-coherency fixes
Do not update mtime if there is no upper branch for the inode. This
prevents from calling unionfs_lower_inode_idx() with a negative index, which
triggers a bug.
Signed-off-by: Olivier Blin <[EMAIL PROTECTED]>
Acked-by: Erez Zadok <[EMAIL PROTECTED]>
diff --git a/fs/unionfs/fanout.h b/fs/unionfs/fanout.h
index afeb9f6..51aa0de 100644
--- a/fs/unionfs/fanout.h
+++ b/fs/unionfs/fanout.h
@@ -308,7 +308,7 @@ static inline void unionfs_copy_attr_times(struct inode
*upper)
int bindex;
struct inode *lower;
- if (!upper)
+ if (!upper || ibstart(upper) < 0)
return;
for (bindex=ibstart(upper); bindex <= ibend(upper); bindex++) {
lower = unionfs_lower_inode_idx(upper, bindex);
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