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Btrfs: Add per-root block accounting and sysfs entries

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Josef Bacik
2007-08-29 15:47:34 -04:00
committed by David Woodhouse
parent b888db2bd7
commit 58176a9604
9 changed files with 393 additions and 11 deletions
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14
fs/btrfs/super.c
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@@ -45,12 +45,14 @@ static struct super_operations btrfs_super_ops;
static void btrfs_put_super (struct super_block * sb)
{
struct btrfs_root *root = btrfs_sb(sb);
struct btrfs_fs_info *fs = root->fs_info;
int ret;
ret = close_ctree(root);
if (ret) {
printk("close ctree returns %d\n", ret);
}
btrfs_sysfs_del_super(fs);
sb->s_fs_info = NULL;
}
@@ -101,6 +103,12 @@ static int btrfs_fill_super(struct super_block * sb, void * data, int silent)
err = -ENOMEM;
goto fail_close;
}
/* this does the super kobj at the same time */
err = btrfs_sysfs_add_super(tree_root->fs_info);
if (err)
goto fail_close;
sb->s_root = root_dentry;
btrfs_transaction_queue_work(tree_root, HZ * 30);
return 0;
@@ -182,6 +190,11 @@ static struct super_operations btrfs_super_ops = {
static int __init init_btrfs_fs(void)
{
int err;
err = btrfs_init_sysfs();
if (err)
return err;
btrfs_init_transaction_sys();
err = btrfs_init_cachep();
if (err)
@@ -196,6 +209,7 @@ static void __exit exit_btrfs_fs(void)
btrfs_destroy_cachep();
extent_map_exit();
unregister_filesystem(&btrfs_fs_type);
btrfs_exit_sysfs();
}
module_init(init_btrfs_fs)