linux-kernel - [PATCH v1 1/5] mm: Add missing static initializer for init_mm::mm

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Message-Id: <20251221232926.450602-2-mathieu.desnoyers@efficios.com>
Date: Sun, 21 Dec 2025 18:29:22 -0500
From: Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Mark Brown <broonie@...nel.org>,
	linux-mm@...ck.org,
	Thomas Gleixner <tglx@...utronix.de>,
	stable@...r.kernel.org
Subject: [PATCH v1 1/5] mm: Add missing static initializer for init_mm::mm_cid.lock

Initialize the mm_cid.lock struct member of init_mm.

Fixes: 8cea569ca785 ("sched/mmcid: Use proper data structures")
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: stable@...r.kernel.org
Cc: linux-mm@...ck.org
---
 mm/init-mm.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mm/init-mm.c b/mm/init-mm.c
index 4600e7605cab..a514f8ce47e3 100644
--- a/mm/init-mm.c
+++ b/mm/init-mm.c
@@ -44,6 +44,9 @@ struct mm_struct init_mm = {
 	.mm_lock_seq	= SEQCNT_ZERO(init_mm.mm_lock_seq),
 #endif
 	.user_ns	= &init_user_ns,
+#ifdef CONFIG_SCHED_MM_CID
+	.mm_cid.lock = __RAW_SPIN_LOCK_UNLOCKED(init_mm.mm_cid.lock),
+#endif
 	.cpu_bitmap	= CPU_BITS_NONE,
 	INIT_MM_CONTEXT(init_mm)
 };
-- 
2.39.5