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| author | Mark Fasheh <mfasheh@suse.de> | 2016-03-29 17:19:55 -0700 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2016-04-04 16:29:22 +0200 |
| commit | 0f5dcf8de974db5970d48d12a202997baa2846a1 (patch) | |
| tree | 46fcf009452af19d1c76b5f06d4facdfc3f98064 /fs | |
| parent | c79b4713304f812d3d6c95826fc3e5fc2c0b0c14 (diff) | |
| download | linux-0f5dcf8de974db5970d48d12a202997baa2846a1.tar.gz | |
btrfs: Add qgroup tracing
This patch adds tracepoints to the qgroup code on both the reporting side (insert_dirty_extents) and the accounting side. Taken together it allows us to see what qgroup operations have happened, and what their result was. Signed-off-by: Mark Fasheh <mfasheh@suse.de> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/qgroup.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c index 7173360eea7a..9e119552ed32 100644 --- a/fs/btrfs/qgroup.c +++ b/fs/btrfs/qgroup.c @@ -1463,6 +1463,7 @@ struct btrfs_qgroup_extent_record u64 bytenr = record->bytenr; assert_spin_locked(&delayed_refs->lock); + trace_btrfs_qgroup_insert_dirty_extent(record); while (*p) { parent_node = *p; @@ -1594,6 +1595,9 @@ static int qgroup_update_counters(struct btrfs_fs_info *fs_info, cur_old_count = btrfs_qgroup_get_old_refcnt(qg, seq); cur_new_count = btrfs_qgroup_get_new_refcnt(qg, seq); + trace_qgroup_update_counters(qg->qgroupid, cur_old_count, + cur_new_count); + /* Rfer update part */ if (cur_old_count == 0 && cur_new_count > 0) { qg->rfer += num_bytes; @@ -1683,6 +1687,9 @@ btrfs_qgroup_account_extent(struct btrfs_trans_handle *trans, goto out_free; BUG_ON(!fs_info->quota_root); + trace_btrfs_qgroup_account_extent(bytenr, num_bytes, nr_old_roots, + nr_new_roots); + qgroups = ulist_alloc(GFP_NOFS); if (!qgroups) { ret = -ENOMEM; @@ -1752,6 +1759,8 @@ int btrfs_qgroup_account_extents(struct btrfs_trans_handle *trans, record = rb_entry(node, struct btrfs_qgroup_extent_record, node); + trace_btrfs_qgroup_account_extents(record); + if (!ret) { /* * Use (u64)-1 as time_seq to do special search, which |