linux-kernel - [PATCH] maple_tree: Update forking to separate maple state and node

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Date:   Mon,  6 Nov 2023 10:45:51 -0500
From:   "Liam R. Howlett" <Liam.Howlett@...cle.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     maple-tree@...ts.infradead.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        Peng Zhang <zhangpeng.00@...edance.com>,
        "Liam R. Howlett" <Liam.Howlett@...cle.com>
Subject: [PATCH] maple_tree: Update forking to separate maple state and node

Just a small change to the forking code after rebasing the maple status
changes on top.

Signed-off-by: Liam R. Howlett <Liam.Howlett@...cle.com>
---
 lib/maple_tree.c                 | 2 +-
 tools/testing/radix-tree/maple.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

Andrew,

This is just to try and make life easier on you when you apply the maple
tree changes.  I have applied my patch set on top of Pengs and found I
would have to update my patches.

After rebasing my latest patchs on top of Peng's changes to fork, there
were a few new uses of the #define states.  This patch removes them.

Please squash this into "[PATCH 08/12] maple_tree: Separate ma_state
node from status."

Thanks,
Liam


diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index 59dd0e2325e4..85aac746756a 100644
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -6674,7 +6674,7 @@ static inline void mas_dup_build(struct ma_state *mas, struct ma_state *new_mas,
 
 	node = mt_alloc_one(gfp);
 	if (!node) {
-		new_mas->node = MAS_NONE;
+		new_mas->status = ma_none;
 		mas_set_err(mas, -ENOMEM);
 		return;
 	}
diff --git a/tools/testing/radix-tree/maple.c b/tools/testing/radix-tree/maple.c
index 99275945e6d4..56ae47291ee0 100644
--- a/tools/testing/radix-tree/maple.c
+++ b/tools/testing/radix-tree/maple.c
@@ -35958,7 +35958,7 @@ static int __init compare_tree(struct maple_tree *mt_a, struct maple_tree *mt_b)
 
 	if (mas_is_ptr(&mas_a) || mas_is_ptr(&mas_b)) {
 		if (!(mas_is_ptr(&mas_a) && mas_is_ptr(&mas_b))) {
-			pr_err("One is MAS_ROOT and the other is not.\n");
+			pr_err("One is ma_root and the other is not.\n");
 			return -1;
 		}
 		return 0;
@@ -35967,7 +35967,7 @@ static int __init compare_tree(struct maple_tree *mt_a, struct maple_tree *mt_b)
 	while (!mas_is_none(&mas_a) || !mas_is_none(&mas_b)) {
 
 		if (mas_is_none(&mas_a) || mas_is_none(&mas_b)) {
-			pr_err("One is MAS_NONE and the other is not.\n");
+			pr_err("One is ma_none and the other is not.\n");
 			return -1;
 		}
 
-- 
2.40.1