btrfs: convert extent-tree tracepoints to use fs_info

The extent-tree tracepoints all operate on the extent root, regardless of
which root is passed in.  Let's just use the extent root objectid instead.
If it turns out that nobody is depending on the format of this tracepoint,
we can drop the root printing entirely.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 8 insertions, 9 deletions

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 03512c6f4964..a358aaaf43a6 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -7244,7 +7244,7 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans,
 		btrfs_add_free_space(cache, buf->start, buf->len);
 		btrfs_free_reserved_bytes(cache, buf->len, 0);
 		btrfs_put_block_group(cache);
-		trace_btrfs_reserved_extent_free(root, buf->start, buf->len);
+		trace_btrfs_reserved_extent_free(fs_info, buf->start, buf->len);
 		pin = 0;
 	}
 out:
@@ -7493,7 +7493,7 @@ static noinline int find_free_extent(struct btrfs_root *orig_root,
 	ins->objectid = 0;
 	ins->offset = 0;
 
-	trace_find_free_extent(orig_root, num_bytes, empty_size, flags);
+	trace_find_free_extent(fs_info, num_bytes, empty_size, flags);
 
 	space_info = __find_space_info(fs_info, flags);
 	if (!space_info) {
@@ -7652,7 +7652,7 @@ have_block_group:
 			if (offset) {
 				/* we have a block, we're done */
 				spin_unlock(&last_ptr->refill_lock);
-				trace_btrfs_reserve_extent_cluster(root,
+				trace_btrfs_reserve_extent_cluster(fs_info,
 						used_block_group,
 						search_start, num_bytes);
 				if (used_block_group != block_group) {
@@ -7725,7 +7725,7 @@ refill_cluster:
 				if (offset) {
 					/* we found one, proceed */
 					spin_unlock(&last_ptr->refill_lock);
-					trace_btrfs_reserve_extent_cluster(root,
+					trace_btrfs_reserve_extent_cluster(fs_info,
 						block_group, search_start,
 						num_bytes);
 					goto checks;
@@ -7823,7 +7823,7 @@ checks:
 		ins->objectid = search_start;
 		ins->offset = num_bytes;
 
-		trace_btrfs_reserve_extent(orig_root, block_group,
+		trace_btrfs_reserve_extent(fs_info, block_group,
 					   search_start, num_bytes);
 		btrfs_release_block_group(block_group, delalloc);
 		break;
@@ -8048,7 +8048,7 @@ static int __btrfs_free_reserved_extent(struct btrfs_root *root,
 			ret = btrfs_discard_extent(root, start, len, NULL);
 		btrfs_add_free_space(cache, start, len);
 		btrfs_free_reserved_bytes(cache, len, delalloc);
-		trace_btrfs_reserved_extent_free(root, start, len);
+		trace_btrfs_reserved_extent_free(fs_info, start, len);
 	}
 
 	btrfs_put_block_group(cache);
@@ -8139,8 +8139,7 @@ static int alloc_reserved_file_extent(struct btrfs_trans_handle *trans,
 			ins->objectid, ins->offset);
 		BUG();
 	}
-	trace_btrfs_reserved_extent_alloc(fs_info->extent_root,
-					  ins->objectid, ins->offset);
+	trace_btrfs_reserved_extent_alloc(fs_info, ins->objectid, ins->offset);
 	return ret;
 }
 
@@ -8226,7 +8225,7 @@ static int alloc_reserved_tree_block(struct btrfs_trans_handle *trans,
 		BUG();
 	}
 
-	trace_btrfs_reserved_extent_alloc(root, ins->objectid,
+	trace_btrfs_reserved_extent_alloc(fs_info, ins->objectid,
 					  fs_info->nodesize);
 	return ret;
 }