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vfs: Convert openpromfs to use the new mount API

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Convert the openpromfs 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 <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
David Howells 2019-03-25 16:38:30 +00:00 committed by Al Viro
parent 2345771f87
commit 7ab2fa7693
1 changed files with 15 additions and 5 deletions
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20
fs/openpromfs/inode.c
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@ -8,6 +8,7 @@
#include <linux/types.h> #include <linux/types.h>
#include <linux/string.h> #include <linux/string.h>
#include <linux/fs.h> #include <linux/fs.h>
#include <linux/fs_context.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/slab.h> #include <linux/slab.h>
#include <linux/seq_file.h> #include <linux/seq_file.h>
@ -374,7 +375,7 @@ static const struct super_operations openprom_sops = {
.remount_fs = openprom_remount, .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 inode *root_inode;
struct op_inode_info *oi; struct op_inode_info *oi;
@ -408,16 +409,25 @@ static int openprom_fill_super(struct super_block *s, void *data, int silent)
return ret; return ret;
} }
static struct dentry *openprom_mount(struct file_system_type *fs_type, static int openpromfs_get_tree(struct fs_context *fc)
int flags, const char *dev_name, void *data)
{ {
return mount_single(fs_type, flags, data, openprom_fill_super); return get_tree_single(fc, 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 = { static struct file_system_type openprom_fs_type = {
.owner = THIS_MODULE, .owner = THIS_MODULE,
.name = "openpromfs", .name = "openpromfs",
.mount = openprom_mount, .init_fs_context = openpromfs_init_fs_context,
.kill_sb = kill_anon_super, .kill_sb = kill_anon_super,
}; };
MODULE_ALIAS_FS("openpromfs"); MODULE_ALIAS_FS("openpromfs");