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author | Al Viro <viro@zeniv.linux.org.uk> | 2013-01-28 03:31:55 (GMT) |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-02-23 04:31:37 (GMT) |
commit | 78c3e4732f68bfaaa1e27d36135baa3088bcfdde (patch) | |
tree | 553d772abda6063efd14b4f1c796496fcb19bab6 /drivers | |
parent | 740da42efa24ac00dfb40d2f02d9d7f7a485049b (diff) | |
download | linux-78c3e4732f68bfaaa1e27d36135baa3088bcfdde.tar.xz |
xenfs: switch to pure simple_fill_super()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/xen/xenfs/super.c | 66 |
1 files changed, 11 insertions, 55 deletions
diff --git a/drivers/xen/xenfs/super.c b/drivers/xen/xenfs/super.c index 459b9ac..ec0abb6 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, |