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authorAl Viro <viro@zeniv.linux.org.uk>2013-01-27 22:31:55 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2013-02-22 23:31:37 -0500
commit78c3e4732f68bfaaa1e27d36135baa3088bcfdde (patch)
tree553d772abda6063efd14b4f1c796496fcb19bab6 /drivers/xen
parent740da42efa24ac00dfb40d2f02d9d7f7a485049b (diff)
xenfs: switch to pure simple_fill_super()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/xen')
-rw-r--r--drivers/xen/xenfs/super.c66
1 files changed, 11 insertions, 55 deletions
diff --git a/drivers/xen/xenfs/super.c b/drivers/xen/xenfs/super.c
index 459b9ac45cf..ec0abb6df3c 100644
--- a/drivers/xen/xenfs/super.c
+++ b/drivers/xen/xenfs/super.c
@@ -24,47 +24,6 @@
MODULE_DESCRIPTION("Xen filesystem");
MODULE_LICENSE("GPL");
-static struct inode *xenfs_make_inode(struct super_block *sb, int mode)
-{
- struct inode *ret = new_inode(sb);
-
- if (ret) {
- ret->i_mode = mode;
- ret->i_uid = GLOBAL_ROOT_UID;
- ret->i_gid = GLOBAL_ROOT_GID;
- ret->i_blocks = 0;
- ret->i_atime = ret->i_mtime = ret->i_ctime = CURRENT_TIME;
- }
- return ret;
-}
-
-static struct dentry *xenfs_create_file(struct super_block *sb,
- struct dentry *parent,
- const char *name,
- const struct file_operations *fops,
- void *data,
- int mode)
-{
- struct dentry *dentry;
- struct inode *inode;
-
- dentry = d_alloc_name(parent, name);
- if (!dentry)
- return NULL;
-
- inode = xenfs_make_inode(sb, S_IFREG | mode);
- if (!inode) {
- dput(dentry);
- return NULL;
- }
-
- inode->i_fop = fops;
- inode->i_private = data;
-
- d_add(dentry, inode);
- return dentry;
-}
-
static ssize_t capabilities_read(struct file *file, char __user *buf,
size_t size, loff_t *off)
{
@@ -84,26 +43,23 @@ static const struct file_operations capabilities_file_ops = {
static int xenfs_fill_super(struct super_block *sb, void *data, int silent)
{
static struct tree_descr xenfs_files[] = {
- [1] = {},
- { "xenbus", &xen_xenbus_fops, S_IRUSR|S_IWUSR },
+ [2] = { "xenbus", &xen_xenbus_fops, S_IRUSR|S_IWUSR },
{ "capabilities", &capabilities_file_ops, S_IRUGO },
{ "privcmd", &xen_privcmd_fops, S_IRUSR|S_IWUSR },
{""},
};
- int rc;
- rc = simple_fill_super(sb, XENFS_SUPER_MAGIC, xenfs_files);
- if (rc < 0)
- return rc;
-
- if (xen_initial_domain()) {
- xenfs_create_file(sb, sb->s_root, "xsd_kva",
- &xsd_kva_file_ops, NULL, S_IRUSR|S_IWUSR);
- xenfs_create_file(sb, sb->s_root, "xsd_port",
- &xsd_port_file_ops, NULL, S_IRUSR|S_IWUSR);
- }
+ static struct tree_descr xenfs_init_files[] = {
+ [2] = { "xenbus", &xen_xenbus_fops, S_IRUSR|S_IWUSR },
+ { "capabilities", &capabilities_file_ops, S_IRUGO },
+ { "privcmd", &xen_privcmd_fops, S_IRUSR|S_IWUSR },
+ { "xsd_kva", &xsd_kva_file_ops, S_IRUSR|S_IWUSR},
+ { "xsd_port", &xsd_port_file_ops, S_IRUSR|S_IWUSR},
+ {""},
+ };
- return rc;
+ return simple_fill_super(sb, XENFS_SUPER_MAGIC,
+ xen_initial_domain() ? xenfs_init_files : xenfs_files);
}
static struct dentry *xenfs_mount(struct file_system_type *fs_type,