[PATCH v2] Btrfs: remove confusing tracepoint in btrfs_add_reserved_bytes

[Liu Bo <bo.liu@linux.alibaba.com>]

Here we're not releasing any space, but transferring bytes from
->bytes_may_use to ->bytes_reserved.

Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
---
v2: Add missing commit log.

 fs/btrfs/extent-tree.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 41a02cbb5a4a..76ee5ebef2b9 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -6401,10 +6401,6 @@ static int btrfs_add_reserved_bytes(struct btrfs_block_group_cache *cache,
 	} else {
 		cache->reserved += num_bytes;
 		space_info->bytes_reserved += num_bytes;
-
-		trace_btrfs_space_reservation(cache->fs_info,
-				"space_info", space_info->flags,
-				ram_bytes, 0);
 		space_info->bytes_may_use -= ram_bytes;
 		if (delalloc)
 			cache->delalloc_bytes += num_bytes;
-- 
1.8.3.1