Wrapfs: update ->permission prototye and code for new iperm flag

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>

diff --git a/fs/wrapfs/inode.c b/fs/wrapfs/inode.c
index eba0883c046292ab6fa56e0f05e50c1d97d57c24..9fc3c66d751693a380c2cb81c7a21cc8af13101f 100644 (file)
--- a/fs/wrapfs/inode.c
+++ b/fs/wrapfs/inode.c
@@ -407,11 +407,14 @@ static void wrapfs_put_link(struct dentry *dentry, struct nameidata *nd,
                kfree(buf);
 }
 
-static int wrapfs_permission(struct inode *inode, int mask)
+static int wrapfs_permission(struct inode *inode, int mask, unsigned int flags)
 {
        struct inode *lower_inode;
        int err;
 
+       if (flags & IPERM_FLAG_RCU)
+               return -ECHILD;
+
        lower_inode = wrapfs_lower_inode(inode);
        err = inode_permission(lower_inode, mask);
        return err;