lkml.org 
[lkml]   [2022]   [Dec]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 4/7] maple_tree: use macro MA_ROOT_PARENT instead of number
Date
When you need to compare whether node->parent is parent of the
root node, using macro MA_ROOT_PARENT is easier to understand
and for better readability.

Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Vernon Yang <vernon2gm@gmail.com>
---
lib/maple_tree.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index 3d45c515ed42..b3a215dd961e 100644
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -503,8 +503,7 @@ static inline unsigned int mte_parent_slot(const struct maple_enode *enode)
{
unsigned long val = (unsigned long)mte_to_node(enode)->parent;

- /* Root. */
- if (val & 1)
+ if (val & MA_ROOT_PARENT)
return 0;

/*
--
2.34.1
\
 
 \ /
  Last update: 2023-03-26 23:16    [W:1.181 / U:0.008 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site