linux-kernel - [PATCH v3 15/16] maple_tree: remove repeated sanity checks from mas_wr

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Message-ID: <20240618204750.79512-16-sidhartha.kumar@oracle.com>
Date: Tue, 18 Jun 2024 13:47:49 -0700
From: Sidhartha Kumar <sidhartha.kumar@...cle.com>
To: linux-kernel@...r.kernel.org, maple-tree@...ts.infradead.org
Cc: linux-mm@...ck.org, akpm@...ux-foundation.org, liam.howlett@...cle.com,
        willy@...radead.org, Sidhartha Kumar <sidhartha.kumar@...cle.com>
Subject: [PATCH v3 15/16] maple_tree: remove repeated sanity checks from mas_wr_append()

These sanity checks are now redundant as they are already checked in
mas_wr_store_type(). We can remove them from mas_wr_append().

Signed-off-by: Sidhartha Kumar <sidhartha.kumar@...cle.com>
---
 lib/maple_tree.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index 9ab8a6b6fb0d..f6a09bb7b291 100644
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -4061,17 +4061,9 @@ static inline unsigned char mas_wr_new_end(struct ma_wr_state *wr_mas)
 static inline bool mas_wr_append(struct ma_wr_state *wr_mas,
 		unsigned char new_end)
 {
-	struct ma_state *mas;
+	struct ma_state *mas = wr_mas->mas;
 	void __rcu **slots;
-	unsigned char end;
-
-	mas = wr_mas->mas;
-	if (mt_in_rcu(mas->tree))
-		return false;
-
-	end = mas->end;
-	if (mas->offset != end)
-		return false;
+	unsigned char end = mas->end;
 
 	if (new_end < mt_pivots[wr_mas->type]) {
 		wr_mas->pivots[new_end] = wr_mas->pivots[end];
-- 
2.45.2