@@ -625,68 +625,14 @@ add_delayed_ref_head(struct btrfs_trans_handle *trans,
{
struct btrfs_delayed_ref_head *existing;
struct btrfs_delayed_ref_root *delayed_refs;
- int count_mod = 1;
- int must_insert_reserved = 0;
int qrecord_inserted = 0;
- /* If reserved is provided, it must be a data extent. */
- BUG_ON(!is_data && reserved);
-
- /*
- * the head node stores the sum of all the mods, so dropping a ref
- * should drop the sum in the head node by one.
- */
- if (action == BTRFS_UPDATE_DELAYED_HEAD)
- count_mod = 0;
- else if (action == BTRFS_DROP_DELAYED_REF)
- count_mod = -1;
-
- /*
- * BTRFS_ADD_DELAYED_EXTENT means that we need to update
- * the reserved accounting when the extent is finally added, or
- * if a later modification deletes the delayed ref without ever
- * inserting the extent into the extent allocation tree.
- * ref->must_insert_reserved is the flag used to record
- * that accounting mods are required.
- *
- * Once we record must_insert_reserved, switch the action to
- * BTRFS_ADD_DELAYED_REF because other special casing is not required.
- */
- if (action == BTRFS_ADD_DELAYED_EXTENT)
- must_insert_reserved = 1;
- else
- must_insert_reserved = 0;
-
delayed_refs = &trans->transaction->delayed_refs;
-
- refcount_set(&head_ref->refs, 1);
- head_ref->bytenr = bytenr;
- head_ref->num_bytes = num_bytes;
- head_ref->ref_mod = count_mod;
- head_ref->must_insert_reserved = must_insert_reserved;
- head_ref->is_data = is_data;
- head_ref->ref_tree = RB_ROOT;
- INIT_LIST_HEAD(&head_ref->ref_add_list);
- RB_CLEAR_NODE(&head_ref->href_node);
- head_ref->processing = 0;
- head_ref->total_ref_mod = count_mod;
- head_ref->qgroup_reserved = 0;
- head_ref->qgroup_ref_root = 0;
- spin_lock_init(&head_ref->lock);
- mutex_init(&head_ref->mutex);
-
+ init_delayed_ref_head(head_ref, qrecord, bytenr, num_bytes, ref_root,
+ reserved, action, is_data);
/* Record qgroup extent info if provided */
if (qrecord) {
- if (ref_root && reserved) {
- head_ref->qgroup_ref_root = ref_root;
- head_ref->qgroup_reserved = reserved;
- }
-
- qrecord->bytenr = bytenr;
- qrecord->num_bytes = num_bytes;
- qrecord->old_roots = NULL;
-
- if(btrfs_qgroup_trace_extent_nolock(trans->fs_info,
+ if (btrfs_qgroup_trace_extent_nolock(trans->fs_info,
delayed_refs, qrecord))
kfree(qrecord);
else
@@ -711,7 +657,7 @@ add_delayed_ref_head(struct btrfs_trans_handle *trans,
} else {
if (old_ref_mod)
*old_ref_mod = 0;
- if (is_data && count_mod < 0)
+ if (is_data && head_ref->ref_mod < 0)
delayed_refs->pending_csums += num_bytes;
delayed_refs->num_heads++;
delayed_refs->num_heads_ready++;
Use the newly introduced function when initialising the head_ref in add_delayed_ref_head. No functional changes. Signed-off-by: Nikolay Borisov <nborisov@suse.com> --- fs/btrfs/delayed-ref.c | 62 ++++---------------------------------------------- 1 file changed, 4 insertions(+), 58 deletions(-)