jffs2: Fix NFS race by using insert_inode_locked()
New inodes need to be locked as we're creating them, so they don't get used
by other things (like NFSd) before they're ready.
Pointed out by Al Viro.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index 86e0821..26037e2 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -465,7 +465,12 @@
inode->i_blocks = 0;
inode->i_size = 0;
- insert_inode_hash(inode);
+ if (insert_inode_locked(inode) < 0) {
+ make_bad_inode(inode);
+ unlock_new_inode(inode);
+ iput(inode);
+ return ERR_PTR(-EINVAL);
+ }
return inode;
}