r/o bind mounts: filesystem helpers for custom 'struct file's

[safe/jmp/linux-2.6] / net / socket.c

diff --git a/net/socket.c b/net/socket.c
index 3cd96fe..540013e 100644 (file)
--- a/net/socket.c
+++ b/net/socket.c
@@ -364,26 +364,26 @@ static int sock_alloc_fd(struct file **filep)
 
 static int sock_attach_fd(struct socket *sock, struct file *file)
 {
+       struct dentry *dentry;
        struct qstr name = { .name = "" };
 
-       file->f_path.dentry = d_alloc(sock_mnt->mnt_sb->s_root, &name);
-       if (unlikely(!file->f_path.dentry))
+       dentry = d_alloc(sock_mnt->mnt_sb->s_root, &name);
+       if (unlikely(!dentry))
                return -ENOMEM;
 
-       file->f_path.dentry->d_op = &sockfs_dentry_operations;
+       dentry->d_op = &sockfs_dentry_operations;
        /*
         * We dont want to push this dentry into global dentry hash table.
         * We pretend dentry is already hashed, by unsetting DCACHE_UNHASHED
         * This permits a working /proc/$pid/fd/XXX on sockets
         */
-       file->f_path.dentry->d_flags &= ~DCACHE_UNHASHED;
-       d_instantiate(file->f_path.dentry, SOCK_INODE(sock));
-       file->f_path.mnt = mntget(sock_mnt);
-       file->f_mapping = file->f_path.dentry->d_inode->i_mapping;
+       dentry->d_flags &= ~DCACHE_UNHASHED;
+       d_instantiate(dentry, SOCK_INODE(sock));
 
        sock->file = file;
-       file->f_op = SOCK_INODE(sock)->i_fop = &socket_file_ops;
-       file->f_mode = FMODE_READ | FMODE_WRITE;
+       init_file(file, sock_mnt, dentry, FMODE_READ | FMODE_WRITE,
+                 &socket_file_ops);
+       SOCK_INODE(sock)->i_fop = &socket_file_ops;
        file->f_flags = O_RDWR;
        file->f_pos = 0;
        file->private_data = sock;