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Btrfs: qgroup implementation and prototypes

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Signed-off-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
This commit is contained in:
Arne Jansen
2012-06-28 18:03:02 +02:00
committed by Jan Schmidt
parent 709c0486b9
commit bed92eae26
7 changed files with 1681 additions and 1 deletions
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34
fs/btrfs/extent-tree.c
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@@ -2409,6 +2409,40 @@ static u64 find_middle(struct rb_root *root)
}
#endif
int btrfs_delayed_refs_qgroup_accounting(struct btrfs_trans_handle *trans,
struct btrfs_fs_info *fs_info)
{
struct qgroup_update *qgroup_update;
int ret = 0;
if (list_empty(&trans->qgroup_ref_list) !=
!trans->delayed_ref_elem.seq) {
/* list without seq or seq without list */
printk(KERN_ERR "btrfs: qgroup accounting update error, list is%s empty, seq is %llu\n",
list_empty(&trans->qgroup_ref_list) ? "" : " not",
trans->delayed_ref_elem.seq);
BUG();
}
if (!trans->delayed_ref_elem.seq)
return 0;
while (!list_empty(&trans->qgroup_ref_list)) {
qgroup_update = list_first_entry(&trans->qgroup_ref_list,
struct qgroup_update, list);
list_del(&qgroup_update->list);
if (!ret)
ret = btrfs_qgroup_account_ref(
trans, fs_info, qgroup_update->node,
qgroup_update->extent_op);
kfree(qgroup_update);
}
btrfs_put_tree_mod_seq(fs_info, &trans->delayed_ref_elem);
return ret;
}
/*
* this starts processing the delayed reference count updates and
* extent insertions we have queued up so far. count can be