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Peter Anvin" , Andy Lutomirski , Peter Zijlstra , Arnaldo Carvalho de Melo , Josh Poimboeuf , Paolo Bonzini , Arnd Bergmann , Frederic Weisbecker , "Paul E. McKenney" , Jason Baron , Steven Rostedt , Ard Biesheuvel , Sami Tolvanen , "David S. Miller" , Neeraj Upadhyay , Joel Fernandes , Josh Triplett , Boqun Feng , Uladzislau Rezki , Mathieu Desnoyers , Mel Gorman , Andrew Morton , Masahiro Yamada , Han Shen , Rik van Riel , Jann Horn , Dan Carpenter , Oleg Nesterov , Juri Lelli , Clark Williams , Tomas Glozar , Yair Podemsky , Marcelo Tosatti , Daniel Wagner , Petr Tesarik , Shrikanth Hegde Subject: [RFC PATCH v8 05/10] sched/isolation: Mark housekeeping_overridden key as __ro_after_init Date: Tue, 24 Mar 2026 10:47:56 +0100 Message-ID: <20260324094801.3092968-6-vschneid@redhat.com> In-Reply-To: <20260324094801.3092968-1-vschneid@redhat.com> References: <20260324094801.3092968-1-vschneid@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 X-Mimecast-MFC-PROC-ID: GGIbVpDku65V7sqG4oX-bbIOjUntlEAUea1tiiqlmbo_1774345793 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true X-Rspamd-Queue-Id: 38DDFA0008 X-Stat-Signature: 7xbbhhh3os1cjng3bxwicuiwzif5sdd8 X-Rspam-User: X-Rspamd-Server: rspam10 X-HE-Tag: 1774345802-168051 X-HE-Meta: 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 lld+45AQ zMyrWRjKW4APcZJW7cFYeUKpHkIQjQD1n4FNDja+vQrX/S70mPlma0OMC87cvebHkipu1xXYHyZfpc3wyx5rAjRA8xoAfXrHXbK+CNqk1QyigFtIYFJ4bldThhlDhIirybEgLaDeC01T+9pm3Urxr42UEcORfqoc0hSasBF2J1HvTqmvXnV6OqL7R49FVF8jp+CZQrecFjbuhj/Hm8TrSO/AVcrP3fkVwjsoToOzk//48zqVM6A8gR9VUc1sikZoI7jSXfiyV1gKTeG1oD4KrKYfN3Yk2qNueOMx1nuZchXvCN8HK3Dfk5d270foDV2TA2GxEjYgEZOdmZYyHNyV0gMd48tZuYlxpwrSNilUnD1rEKEoZ3KfEMM+PoukgLRqfAvXja9uslG5OHLQRc5AAQnbufZLC/nAtMA85q7454Yc+eQR/Oik1vKmIQI13ZfDHawPGNAvSTh+iA/mHzujJz+6VfypqFVi5ct8JYMm3q/AzfA8= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: housekeeping_overridden is only ever enabled in the __init function housekeeping_init(), and is never disabled. Mark it __ro_after_init. Signed-off-by: Valentin Schneider --- kernel/sched/isolation.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/isolation.c b/kernel/sched/isolation.c index 3ad0d6df6a0a2..54d1d93cdeea5 100644 --- a/kernel/sched/isolation.c +++ b/kernel/sched/isolation.c @@ -16,7 +16,7 @@ enum hk_flags { HK_FLAG_KERNEL_NOISE = BIT(HK_TYPE_KERNEL_NOISE), }; -DEFINE_STATIC_KEY_FALSE(housekeeping_overridden); +DEFINE_STATIC_KEY_FALSE_RO(housekeeping_overridden); EXPORT_SYMBOL_GPL(housekeeping_overridden); struct housekeeping { -- 2.52.0