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[v2,10/21] btrfs: initialize key where it's used when running delayed data ref

Message ID 5b936afa138b6e190a322987e7d6c9b2ad7230f1.1694192469.git.fdmanana@suse.com (mailing list archive)
State New, archived
Headers show
Series btrfs: updates to delayed refs accounting and space reservation | expand

Commit Message

Filipe Manana Sept. 8, 2023, 5:20 p.m. UTC 
From: Filipe Manana <fdmanana@suse.com>

At run_delayed_data_ref() we are always initializing a key but the key
is only needed and used if we are inserting a new extent. So move the
declaration and initialization of the key to 'if' branch where it's used.
Also rename the key from 'ins' to 'key', as it's a more clear name.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
---
 fs/btrfs/extent-tree.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)
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Patch

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index de63e873be3a..16c7122bdfb5 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1535,15 +1535,10 @@  static int run_delayed_data_ref(struct btrfs_trans_handle *trans,
 {
 	int ret = 0;
 	struct btrfs_delayed_data_ref *ref;
-	struct btrfs_key ins;
 	u64 parent = 0;
 	u64 ref_root = 0;
 	u64 flags = 0;
 
-	ins.objectid = node->bytenr;
-	ins.offset = node->num_bytes;
-	ins.type = BTRFS_EXTENT_ITEM_KEY;
-
 	ref = btrfs_delayed_node_to_data_ref(node);
 	trace_run_delayed_data_ref(trans->fs_info, node, ref, node->action);
 
@@ -1552,11 +1547,18 @@  static int run_delayed_data_ref(struct btrfs_trans_handle *trans,
 	ref_root = ref->root;
 
 	if (node->action == BTRFS_ADD_DELAYED_REF && insert_reserved) {
+		struct btrfs_key key;
+
 		if (extent_op)
 			flags |= extent_op->flags_to_set;
+
+		key.objectid = node->bytenr;
+		key.type = BTRFS_EXTENT_ITEM_KEY;
+		key.offset = node->num_bytes;
+
 		ret = alloc_reserved_file_extent(trans, parent, ref_root,
 						 flags, ref->objectid,
-						 ref->offset, &ins,
+						 ref->offset, &key,
 						 node->ref_mod);
 	} else if (node->action == BTRFS_ADD_DELAYED_REF) {
 		ret = __btrfs_inc_extent_ref(trans, node, parent, ref_root,