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Message-Id: <20221110072459.23656-1-richard.weiyang@gmail.com>
Date: Thu, 10 Nov 2022 07:24:59 +0000
From: Wei Yang <richard.weiyang@...il.com>
To: Liam.Howlett@...cle.com
Cc: linux-mm@...ck.org, linux-kernel@...r.kernel.org,
Wei Yang <richard.weiyang@...il.com>,
"Liam R . Howlett" <Liam.Howlett@...cle.com>
Subject: [PATCH RFC] maple_tree: should get pivots boundary by type
If my understanding is correct, we should get pivots boundary by type.
Signed-off-by: Wei Yang <richard.weiyang@...il.com>
CC: Liam R. Howlett <Liam.Howlett@...cle.com>
---
* kernel build looks good
---
lib/maple_tree.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index 73e2e6434e2f..2123d1930a9b 100644
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -669,12 +669,13 @@ static inline unsigned long mte_pivot(const struct maple_enode *mn,
unsigned char piv)
{
struct maple_node *node = mte_to_node(mn);
+ enum maple_type type = mte_node_type(mn);
- if (piv >= mt_pivots[piv]) {
+ if (piv >= mt_pivots[type]) {
WARN_ON(1);
return 0;
}
- switch (mte_node_type(mn)) {
+ switch (type) {
case maple_arange_64:
return node->ma64.pivot[piv];
case maple_range_64:
--
2.33.1
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