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btrfs: remove delayed_ref_node from ref_head

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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>
This commit is contained in:
Josef Bacik
2017-09-29 15:43:57 -04:00
committed by David Sterba
parent c1103f7a5d
commit d278850eff
6 changed files with 120 additions and 176 deletions
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13
include/trace/events/btrfs.h
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@@ -798,11 +798,10 @@ DEFINE_EVENT(btrfs_delayed_data_ref, run_delayed_data_ref,
DECLARE_EVENT_CLASS(btrfs_delayed_ref_head,
TP_PROTO(const struct btrfs_fs_info *fs_info,
const struct btrfs_delayed_ref_node *ref,
const struct btrfs_delayed_ref_head *head_ref,
int action),
TP_ARGS(fs_info, ref, head_ref, action),
TP_ARGS(fs_info, head_ref, action),
TP_STRUCT__entry_btrfs(
__field( u64, bytenr )
@@ -812,8 +811,8 @@ DECLARE_EVENT_CLASS(btrfs_delayed_ref_head,
),
TP_fast_assign_btrfs(fs_info,
__entry->bytenr = ref->bytenr;
__entry->num_bytes = ref->num_bytes;
__entry->bytenr = head_ref->bytenr;
__entry->num_bytes = head_ref->num_bytes;
__entry->action = action;
__entry->is_data = head_ref->is_data;
),
@@ -828,21 +827,19 @@ DECLARE_EVENT_CLASS(btrfs_delayed_ref_head,
DEFINE_EVENT(btrfs_delayed_ref_head, add_delayed_ref_head,
TP_PROTO(const struct btrfs_fs_info *fs_info,
const struct btrfs_delayed_ref_node *ref,
const struct btrfs_delayed_ref_head *head_ref,
int action),
TP_ARGS(fs_info, ref, head_ref, action)
TP_ARGS(fs_info, head_ref, action)
);
DEFINE_EVENT(btrfs_delayed_ref_head, run_delayed_ref_head,
TP_PROTO(const struct btrfs_fs_info *fs_info,
const struct btrfs_delayed_ref_node *ref,
const struct btrfs_delayed_ref_head *head_ref,
int action),
TP_ARGS(fs_info, ref, head_ref, action)
TP_ARGS(fs_info, head_ref, action)
);
#define show_chunk_type(type) \