linux-kernel - [PATCH 33/38] vfs: Convert openpromfs to fs

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Date:   Thu, 14 Mar 2019 16:13:21 +0000
From:   David Howells <dhowells@...hat.com>
To:     viro@...iv.linux.org.uk
Cc:     dhowells@...hat.com, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 33/38] vfs: Convert openpromfs to fs_context

Signed-off-by: David Howells <dhowells@...hat.com>
---

 fs/openpromfs/inode.c |   20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/fs/openpromfs/inode.c b/fs/openpromfs/inode.c
index 1b2d0d2fe2ee..7ec384df0109 100644
--- a/fs/openpromfs/inode.c
+++ b/fs/openpromfs/inode.c
@@ -8,6 +8,7 @@
 #include <linux/types.h>
 #include <linux/string.h>
 #include <linux/fs.h>
+#include <linux/fs_context.h>
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/seq_file.h>
@@ -380,7 +381,7 @@ static const struct super_operations openprom_sops = {
 	.remount_fs	= openprom_remount,
 };
 
-static int openprom_fill_super(struct super_block *s, void *data, int silent)
+static int openprom_fill_super(struct super_block *s, struct fs_context *fc)
 {
 	struct inode *root_inode;
 	struct op_inode_info *oi;
@@ -414,16 +415,25 @@ static int openprom_fill_super(struct super_block *s, void *data, int silent)
 	return ret;
 }
 
-static struct dentry *openprom_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data)
+static int openpromfs_get_tree(struct fs_context *fc)
 {
-	return mount_single(fs_type, flags, data, openprom_fill_super);
+	return vfs_get_super(fc, vfs_get_single_super, openprom_fill_super);
+}
+
+static const struct fs_context_operations openpromfs_context_ops = {
+	.get_tree	= openpromfs_get_tree,
+};
+
+static int openpromfs_init_fs_context(struct fs_context *fc)
+{
+	fc->ops = &openpromfs_context_ops;
+	return 0;
 }
 
 static struct file_system_type openprom_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "openpromfs",
-	.mount		= openprom_mount,
+	.init_fs_context = openpromfs_init_fs_context,
 	.kill_sb	= kill_anon_super,
 };
 MODULE_ALIAS_FS("openpromfs");