From: Liam R. Howlett <Liam.Howlett@oracle.com>
Date: Fri, 30 Jan 2026 20:59:15 +0000 (-0500)
Subject: maple_tree: correct right ma_wr_state end pivot in mas_wr_spanning_store()
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=6b74d44b6297de89284cec8a83fce223106c159a;p=thirdparty%2Fkernel%2Fstable.git

maple_tree: correct right ma_wr_state end pivot in mas_wr_spanning_store()

The end_piv will be needed in the next patch set and has not been set
correctly in this code path.  Correct the oversight before using it.

Link: https://lkml.kernel.org/r/20260130205935.2559335-11-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Alice Ryhl <aliceryhl@google.com>
Cc: Andrew Ballance <andrewjballance@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Christian Kujau <lists@nerdbynature.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: SeongJae Park <sj@kernel.org>
Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index c5bb341da5e9..caac936bd8d4 100644
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -3494,6 +3494,7 @@ static void mas_wr_spanning_store(struct ma_wr_state *wr_mas)
 	r_mas.index = r_mas.last;
 	mas_wr_walk_index(&r_wr_mas);
 	r_mas.last = r_mas.index = mas->last;
+	r_wr_mas.end_piv = r_wr_mas.r_max;
 
 	/* Set up left side. */
 	mas_wr_walk_index(wr_mas);