[PATCH 2/2] btrfs: simplify boolean argument for btrfs_{inc,dec}_ref

[Sun YangKai <sunk67188@gmail.com>]

Replace open-coded if/else blocks with the boolean expression
directly, making the code shorter and easier to read.

No functional change.

Signed-off-by: Sun YangKai <sunk67188@gmail.com>
---
 fs/btrfs/ctree.c       | 25 +++++++------------------
 fs/btrfs/extent-tree.c | 17 +++++------------
 2 files changed, 12 insertions(+), 30 deletions(-)

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 1b15cef86cbc..e056dedec221 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -291,15 +291,9 @@ int btrfs_copy_root(struct btrfs_trans_handle *trans,
 		return ret;
 	}
 
-	if (new_root_objectid == BTRFS_TREE_RELOC_OBJECTID) {
-		ret = btrfs_inc_ref(trans, root, cow, true);
-		if (unlikely(ret))
-			btrfs_abort_transaction(trans, ret);
-	} else {
-		ret = btrfs_inc_ref(trans, root, cow, false);
-		if (unlikely(ret))
-			btrfs_abort_transaction(trans, ret);
-	}
+	ret = btrfs_inc_ref(trans, root, cow, new_root_objectid == BTRFS_TREE_RELOC_OBJECTID);
+	if (unlikely(ret))
+		btrfs_abort_transaction(trans, ret);
 	if (ret) {
 		btrfs_tree_unlock(cow);
 		free_extent_buffer(cow);
@@ -437,20 +431,15 @@ static noinline int update_ref_for_cow(struct btrfs_trans_handle *trans,
 			if (ret)
 				return ret;
 		} else {
-
-			if (btrfs_root_id(root) == BTRFS_TREE_RELOC_OBJECTID)
-				ret = btrfs_inc_ref(trans, root, cow, true);
-			else
-				ret = btrfs_inc_ref(trans, root, cow, false);
+			ret = btrfs_inc_ref(trans, root, cow,
+					    btrfs_root_id(root) == BTRFS_TREE_RELOC_OBJECTID);
 			if (ret)
 				return ret;
 		}
 	} else {
 		if (flags & BTRFS_BLOCK_FLAG_FULL_BACKREF) {
-			if (btrfs_root_id(root) == BTRFS_TREE_RELOC_OBJECTID)
-				ret = btrfs_inc_ref(trans, root, cow, true);
-			else
-				ret = btrfs_inc_ref(trans, root, cow, false);
+			ret = btrfs_inc_ref(trans, root, cow,
+					    btrfs_root_id(root) == BTRFS_TREE_RELOC_OBJECTID);
 			if (ret)
 				return ret;
 			ret = btrfs_dec_ref(trans, root, buf, true);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 527310f3aeb3..8e6f362de649 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -5875,18 +5875,11 @@ static noinline int walk_up_proc(struct btrfs_trans_handle *trans,
 
 	if (wc->refs[level] == 1) {
 		if (level == 0) {
-			if (wc->flags[level] & BTRFS_BLOCK_FLAG_FULL_BACKREF) {
-				ret = btrfs_dec_ref(trans, root, eb, true);
-				if (ret) {
-					btrfs_abort_transaction(trans, ret);
-					return ret;
-				}
-			} else {
-				ret = btrfs_dec_ref(trans, root, eb, false);
-				if (unlikely(ret)) {
-					btrfs_abort_transaction(trans, ret);
-					return ret;
-				}
+			ret = btrfs_dec_ref(trans, root, eb,
+					    !!(wc->flags[level] & BTRFS_BLOCK_FLAG_FULL_BACKREF));
+			if (unlikely(ret)) {
+				btrfs_abort_transaction(trans, ret);
+				return ret;
 			}
 			if (btrfs_is_fstree(btrfs_root_id(root))) {
 				ret = btrfs_qgroup_trace_leaf_items(trans, eb);
-- 
2.51.2