vfs: Convert anon_inodes to use the new mount API

Convert the anon_inodes filesystem to the new internal mount API as the old one will be obsoleted and removed. This allows greater flexibility in communication of mount parameters between userspace, the VFS and the filesystem. See Documentation/filesystems/mount_api.txt for more information. Signed-off-by: David Howells <[email protected]> cc: [email protected] Signed-off-by: Al Viro <[email protected]>
Axel1400 · May 25, 2019 · 33cada4 · 33cada4
1 parent 52db59d
commit 33cada4
Showing 1 changed file with 8 additions and 5 deletions.
diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c
@@ -19,6 +19,7 @@
 #include <linux/kernel.h>
 #include <linux/magic.h>
 #include <linux/anon_inodes.h>
+#include <linux/pseudo_fs.h>
 
 #include <linux/uaccess.h>
 
@@ -38,16 +39,18 @@ 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)
+static int anon_inodefs_init_fs_context(struct fs_context *fc)
 {
-	return mount_pseudo(fs_type, NULL, &anon_inodefs_dentry_operations,
-			    ANON_INODE_FS_MAGIC);
+	struct pseudo_fs_context *ctx = init_pseudo(fc, ANON_INODE_FS_MAGIC);
+	if (!ctx)
+		return -ENOMEM;
+	ctx->dops = &anon_inodefs_dentry_operations;
+	return 0;
 }
 
 static struct file_system_type anon_inode_fs_type = {
 	.name		= "anon_inodefs",
-	.mount		= anon_inodefs_mount,
+	.init_fs_context = anon_inodefs_init_fs_context,
 	.kill_sb	= kill_anon_super,
 };