From: Wei Yang <richard.weiyang@gmail.com>
To: Liam.Howlett@oracle.com, akpm@linux-foundation.org
Cc: maple-tree@lists.infradead.org, linux-mm@kvack.org,
Wei Yang <richard.weiyang@gmail.com>,
"Liam R . Howlett" <Liam.Howlett@Oracle.com>,
Sidhartha Kumar <sidhartha.kumar@oracle.com>,
Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Subject: [PATCH v3 3/5] maple_tree: not necessary to check index/last again
Date: Fri, 18 Oct 2024 02:39:41 +0000 [thread overview]
Message-ID: <20241018023943.13860-4-richard.weiyang@gmail.com> (raw)
In-Reply-To: <20241018023943.13860-1-richard.weiyang@gmail.com>
Before calling mas_new_root(), the range has been checked.
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
CC: Liam R. Howlett <Liam.Howlett@Oracle.com>
CC: Sidhartha Kumar <sidhartha.kumar@oracle.com>
CC: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
---
lib/maple_tree.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index cbbaaf60efa9..db8b89487c98 100644
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -3662,7 +3662,7 @@ static inline void mas_new_root(struct ma_state *mas, void *entry)
void __rcu **slots;
unsigned long *pivots;
- if (!entry && !mas->index && mas->last == ULONG_MAX) {
+ if (!entry) {
mas->depth = 0;
mas_set_height(mas);
rcu_assign_pointer(mas->tree->ma_root, entry);
--
2.34.1
next prev parent reply other threads:[~2024-10-18 2:40 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-18 2:39 [PATCH v3 0/5] refine storing NULL Wei Yang
2024-10-18 2:39 ` [PATCH v3 1/5] maple_tree: print empty for an empty tree on mt_dump() Wei Yang
2024-10-18 2:39 ` [PATCH v3 2/5] maple_tree: the return value of mas_root_expand() is not used Wei Yang
2024-10-18 2:39 ` Wei Yang [this message]
2024-10-18 17:43 ` [PATCH v3 3/5] maple_tree: not necessary to check index/last again Liam R. Howlett
2024-10-19 0:28 ` Wei Yang
2024-10-18 2:39 ` [PATCH v3 4/5] maple_tree: refine mas_store_root() on storing NULL Wei Yang
2024-10-18 17:57 ` Liam R. Howlett
2024-10-18 18:00 ` Liam R. Howlett
2024-10-18 18:12 ` Liam R. Howlett
2024-10-19 0:59 ` Wei Yang
2024-10-19 1:55 ` Liam R. Howlett
2024-10-19 2:38 ` Wei Yang
2024-10-18 2:39 ` [PATCH v3 5/5] maple_tree: add a test checking storing null Wei Yang
2024-10-18 18:03 ` [PATCH v3 0/5] refine storing NULL Liam R. Howlett
2024-10-19 0:27 ` Wei Yang
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