pass default dentry_operations to mount_pseudo()

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

4 files changed, 17 insertions, 14 deletions

diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c
index 5fd38112a..549a53c 100644
--- a/fs/anon_inodes.c
+++ b/fs/anon_inodes.c
@@ -26,12 +26,6 @@ static struct vfsmount *anon_inode_mnt __read_mostly;
 static struct inode *anon_inode_inode;
 static const struct file_operations anon_inode_fops;
 
-static struct dentry *anon_inodefs_mount(struct file_system_type *fs_type,
-				int flags, const char *dev_name, void *data)
-{
-	return mount_pseudo(fs_type, "anon_inode:", NULL, ANON_INODE_FS_MAGIC);
-}
-
 /*
  * anon_inodefs_dname() is called from d_path().
  */
@@ -41,14 +35,22 @@ static char *anon_inodefs_dname(struct dentry *dentry, char *buffer, int buflen)
 				dentry->d_name.name);
 }
 
+static const struct dentry_operations anon_inodefs_dentry_operations = {
+	.d_dname	= anon_inodefs_dname,
+};
+
+static struct dentry *anon_inodefs_mount(struct file_system_type *fs_type,
+				int flags, const char *dev_name, void *data)
+{
+	return mount_pseudo(fs_type, "anon_inode:", NULL,
+			&anon_inodefs_dentry_operations, ANON_INODE_FS_MAGIC);
+}
+
 static struct file_system_type anon_inode_fs_type = {
 	.name		= "anon_inodefs",
 	.mount		= anon_inodefs_mount,
 	.kill_sb	= kill_anon_super,
 };
-static const struct dentry_operations anon_inodefs_dentry_operations = {
-	.d_dname	= anon_inodefs_dname,
-};
 
 /*
  * nop .set_page_dirty method so that people can use .page_mkwrite on
@@ -113,7 +115,6 @@ struct file *anon_inode_getfile(const char *name,
 	 */
 	ihold(anon_inode_inode);
 
-	d_set_d_op(path.dentry, &anon_inodefs_dentry_operations);
 	d_instantiate(path.dentry, anon_inode_inode);
 
 	error = -ENFILE;
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 771f235..88da703 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -473,7 +473,7 @@ static const struct super_operations bdev_sops = {
 static struct dentry *bd_mount(struct file_system_type *fs_type,
 	int flags, const char *dev_name, void *data)
 {
-	return mount_pseudo(fs_type, "bdev:", &bdev_sops, 0x62646576);
+	return mount_pseudo(fs_type, "bdev:", &bdev_sops, NULL, 0x62646576);
 }
 
 static struct file_system_type bd_type = {
diff --git a/fs/libfs.c b/fs/libfs.c
index 889311e..c88eab5 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -217,7 +217,8 @@ static const struct super_operations simple_super_operations = {
  * will never be mountable)
  */
 struct dentry *mount_pseudo(struct file_system_type *fs_type, char *name,
-	const struct super_operations *ops, unsigned long magic)
+	const struct super_operations *ops,
+	const struct dentry_operations *dops, unsigned long magic)
 {
 	struct super_block *s = sget(fs_type, NULL, set_anon_super, NULL);
 	struct dentry *dentry;
@@ -254,6 +255,7 @@ struct dentry *mount_pseudo(struct file_system_type *fs_type, char *name,
 	dentry->d_parent = dentry;
 	d_instantiate(dentry, root);
 	s->s_root = dentry;
+	s->s_d_op = dops;
 	s->s_flags |= MS_ACTIVE;
 	return dget(s->s_root);
 
diff --git a/fs/pipe.c b/fs/pipe.c
index 68f1f8e..6b0255a 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -1004,7 +1004,6 @@ struct file *create_write_pipe(int flags)
 		goto err_inode;
 	path.mnt = mntget(pipe_mnt);
 
-	d_set_d_op(path.dentry, &pipefs_dentry_operations);
 	d_instantiate(path.dentry, inode);
 
 	err = -ENFILE;
@@ -1266,7 +1265,8 @@ static const struct super_operations pipefs_ops = {
 static struct dentry *pipefs_mount(struct file_system_type *fs_type,
 			 int flags, const char *dev_name, void *data)
 {
-	return mount_pseudo(fs_type, "pipe:", &pipefs_ops, PIPEFS_MAGIC);
+	return mount_pseudo(fs_type, "pipe:", &pipefs_ops,
+			&pipefs_dentry_operations, PIPEFS_MAGIC);
 }
 
 static struct file_system_type pipe_fs_type = {