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Btrfs: add tracepoint for adding block groups

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I'm writing a tool to visualize the enospc system inside btrfs, I need this
tracepoint in order to keep track of the block groups in the system.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik
2016-03-25 13:25:52 -04:00
committed by David Sterba
parent d555b6c380
commit c83f8effef
2 changed files with 42 additions and 0 deletions
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2
fs/btrfs/extent-tree.c
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@@ -9994,6 +9994,7 @@ int btrfs_read_block_groups(struct btrfs_root *root)
goto error;
}
trace_btrfs_add_block_group(root->fs_info, cache, 0);
ret = update_space_info(info, cache->flags, found_key.offset,
btrfs_block_group_used(&cache->item),
cache->bytes_super, &space_info);
@@ -10164,6 +10165,7 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans,
* Now that our block group has its ->space_info set and is inserted in
* the rbtree, update the space info's counters.
*/
trace_btrfs_add_block_group(root->fs_info, cache, 1);
ret = update_space_info(root->fs_info, cache->flags, size, bytes_used,
cache->bytes_super, &cache->space_info);
if (ret) {