From: Peng Zhang <zhangpeng.00@bytedance.com>
To: Liam.Howlett@oracle.com
Cc: akpm@linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, maple-tree@lists.infradead.org,
Peng Zhang <zhangpeng.00@bytedance.com>
Subject: [RESEND PATCH 1/8] maple_tree: set the node limit when creating a new root node
Date: Fri, 7 Jul 2023 18:10:50 +0800 [thread overview]
Message-ID: <20230707101057.29326-2-zhangpeng.00@bytedance.com> (raw)
In-Reply-To: <20230707101057.29326-1-zhangpeng.00@bytedance.com>
Set the node limit of the root node so that the last pivot of all nodes
is the node limit (if the node is not full).
Signed-off-by: Peng Zhang <zhangpeng.00@bytedance.com>
---
lib/maple_tree.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index d3072858c280..f55e59bd9122 100644
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -3692,7 +3692,8 @@ static inline int mas_root_expand(struct ma_state *mas, void *entry)
mas->offset = slot;
pivots[slot] = mas->last;
if (mas->last != ULONG_MAX)
- slot++;
+ pivots[++slot] = ULONG_MAX;
+
mas->depth = 1;
mas_set_height(mas);
ma_set_meta(node, maple_leaf_64, 0, slot);
--
2.20.1
next prev parent reply other threads:[~2023-07-07 10:11 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-07 10:10 [RESEND PATCH 0/8] Improve the validation for maple tree and some cleanup Peng Zhang
2023-07-07 10:10 ` Peng Zhang [this message]
2023-07-07 15:18 ` [RESEND PATCH 1/8] maple_tree: set the node limit when creating a new root node Liam R. Howlett
2023-07-10 15:05 ` Liam R. Howlett
2023-07-10 15:07 ` Liam R. Howlett
2023-07-07 10:10 ` [RESEND PATCH 2/8] maple_tree: don't use MAPLE_ARANGE64_META_MAX to indicate no gap Peng Zhang
2023-07-07 15:18 ` Liam R. Howlett
2023-07-07 10:10 ` [RESEND PATCH 3/8] maple_tree: make mas_validate_gaps() to check metadata Peng Zhang
2023-07-07 14:45 ` Liam R. Howlett
2023-07-10 9:44 ` Peng Zhang
2023-07-10 13:57 ` Liam R. Howlett
2023-07-07 10:10 ` [RESEND PATCH 4/8] maple_tree: fix mas_validate_child_slot() to check last missed slot Peng Zhang
2023-07-07 15:18 ` Liam R. Howlett
2023-07-07 10:10 ` [RESEND PATCH 5/8] maple_tree: make mas_validate_limits() check root node and node limit Peng Zhang
2023-07-07 14:58 ` Liam R. Howlett
2023-07-10 9:11 ` Peng Zhang
2023-07-07 10:10 ` [RESEND PATCH 6/8] maple_tree: update mt_validate() Peng Zhang
2023-07-07 15:02 ` Liam R. Howlett
2023-07-10 9:47 ` Peng Zhang
2023-07-07 10:10 ` [RESEND PATCH 7/8] maple_tree: replace mas_logical_pivot() with mas_safe_pivot() Peng Zhang
2023-07-07 15:19 ` Liam R. Howlett
2023-07-07 10:10 ` [RESEND PATCH 8/8] maple_tree: drop mas_first_entry() Peng Zhang
2023-07-07 15:19 ` Liam R. Howlett
2023-07-07 13:48 ` [RESEND PATCH 0/8] Improve the validation for maple tree and some cleanup Liam R. Howlett
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