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Wed, 24 Dec 2025 12:34:05 -0500 (EST) From: Mathieu Desnoyers To: Andrew Morton Cc: linux-kernel@vger.kernel.org, Mathieu Desnoyers , Thomas Gleixner , stable@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH v1 1/3] mm: Add missing static initializer for init_mm::mm_cid.lock Date: Wed, 24 Dec 2025 12:33:56 -0500 Message-Id: <20251224173358.647691-2-mathieu.desnoyers@efficios.com> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20251224173358.647691-1-mathieu.desnoyers@efficios.com> References: <20251224173358.647691-1-mathieu.desnoyers@efficios.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam02 X-Stat-Signature: b9oqap5j9cf4erzi6rxrxu7gx6uytwu1 X-Rspam-User: X-Rspamd-Queue-Id: 37B00C000A X-HE-Tag: 1766597646-158218 X-HE-Meta: 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 KvGKWG2u 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Initialize the mm_cid.lock struct member of init_mm. Fixes: 8cea569ca785 ("sched/mmcid: Use proper data structures") Signed-off-by: Mathieu Desnoyers Cc: Andrew Morton Cc: Thomas Gleixner Cc: stable@vger.kernel.org Cc: linux-mm@kvack.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