nilfs->ns_cptree = RB_ROOT;
spin_lock_init(&nilfs->ns_cptree_lock);
init_rwsem(&nilfs->ns_segctor_sem);
+ nilfs->ns_sb_update_freq = NILFS_SB_FREQ;
return nilfs;
}
{
might_sleep();
if (nilfs_init(nilfs)) {
+ nilfs_sysfs_delete_device_group(nilfs);
brelse(nilfs->ns_sbh[0]);
brelse(nilfs->ns_sbh[1]);
}
if (err)
goto failed_sbh;
+ err = nilfs_sysfs_create_device_group(sb);
+ if (err)
+ goto failed_sbh;
+
set_nilfs_init(nilfs);
err = 0;
out:
{
struct rb_node **p, *parent;
struct nilfs_root *root, *new;
+ int err;
root = nilfs_lookup_root(nilfs, cno);
if (root)
return root;
- new = kmalloc(sizeof(*root), GFP_KERNEL);
+ new = kzalloc(sizeof(*root), GFP_KERNEL);
if (!new)
return NULL;
spin_unlock(&nilfs->ns_cptree_lock);
+ err = nilfs_sysfs_create_snapshot_group(new);
+ if (err) {
+ kfree(new);
+ new = NULL;
+ }
+
return new;
}
if (atomic_dec_and_test(&root->count)) {
struct the_nilfs *nilfs = root->nilfs;
+ nilfs_sysfs_delete_snapshot_group(root);
+
spin_lock(&nilfs->ns_cptree_lock);
rb_erase(&root->rb_node, &nilfs->ns_cptree);
spin_unlock(&nilfs->ns_cptree_lock);