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authorJosef Bacik <josef@toxicpanda.com>2017-09-29 15:43:57 -0400
committerDavid Sterba <dsterba@suse.com>2017-10-30 12:28:00 +0100
commitd278850eff3053ef166cf64c16f798dfe36278a2 (patch)
treec0fa4167cbc6622b4caf5562ed1b74ea07c5b836 /fs/btrfs/disk-io.c
parentc1103f7a5d7a544dfdaca6102de68792909dc834 (diff)
btrfs: remove delayed_ref_node from ref_head
This is just excessive information in the ref_head, and makes the code complicated. It is a relic from when we had the heads and the refs in the same tree, which is no longer the case. With this removal I've cleaned up a bunch of the cruft around this old assumption as well. Signed-off-by: Josef Bacik <jbacik@fb.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/disk-io.c')
-rw-r--r--fs/btrfs/disk-io.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index f971d5680e6f..69ce738c00d0 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -4121,12 +4121,12 @@ static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
head = rb_entry(node, struct btrfs_delayed_ref_head,
href_node);
if (!mutex_trylock(&head->mutex)) {
- refcount_inc(&head->node.refs);
+ refcount_inc(&head->refs);
spin_unlock(&delayed_refs->lock);
mutex_lock(&head->mutex);
mutex_unlock(&head->mutex);
- btrfs_put_delayed_ref(&head->node);
+ btrfs_put_delayed_ref_head(head);
spin_lock(&delayed_refs->lock);
continue;
}
@@ -4147,16 +4147,16 @@ static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
if (head->processing == 0)
delayed_refs->num_heads_ready--;
atomic_dec(&delayed_refs->num_entries);
- head->node.in_tree = 0;
rb_erase(&head->href_node, &delayed_refs->href_root);
+ RB_CLEAR_NODE(&head->href_node);
spin_unlock(&head->lock);
spin_unlock(&delayed_refs->lock);
mutex_unlock(&head->mutex);
if (pin_bytes)
- btrfs_pin_extent(fs_info, head->node.bytenr,
- head->node.num_bytes, 1);
- btrfs_put_delayed_ref(&head->node);
+ btrfs_pin_extent(fs_info, head->bytenr,
+ head->num_bytes, 1);
+ btrfs_put_delayed_ref_head(head);
cond_resched();
spin_lock(&delayed_refs->lock);
}