jffs2: fix IN_DELETE_SELF on overwriting rename() killing a directory

We don't generate IN_DELETE_SELF on victim of overwriting rename() if
it happens to be a directory.  Trivially fixed by doing to ->i_nlink
what we do ->pino_nlink a couple of lines later in jffs2_rename().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 4 insertions, 1 deletions

diff --git a/fs/jffs2/dir.c b/fs/jffs2/dir.c
index 8f40ce4f1777..5f243cd63afc 100644
--- a/fs/jffs2/dir.c
+++ b/fs/jffs2/dir.c
@@ -820,7 +820,10 @@ static int jffs2_rename (struct inode *old_dir_i, struct dentry *old_dentry,
 
         if (victim_f) {
                 /* There was a victim. Kill it off nicely */
-                drop_nlink(new_dentry->d_inode);
+                if (S_ISDIR(new_dentry->d_inode->i_mode))
+                        clear_nlink(new_dentry->d_inode);
+                else
+                        drop_nlink(new_dentry->d_inode);
                 /* Don't oops if the victim was a dirent pointing to an
                    inode which didn't exist. */
                 if (victim_f->inocache) {