Message ID | 20241119153502.41361-4-vschneid@redhat.com (mailing list archive) |
---|---|
State | New |
Headers | show
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Peter Anvin" <hpa@zytor.com>, Paolo Bonzini <pbonzini@redhat.com>, Wanpeng Li <wanpengli@tencent.com>, Vitaly Kuznetsov <vkuznets@redhat.com>, Andy Lutomirski <luto@kernel.org>, Peter Zijlstra <peterz@infradead.org>, Frederic Weisbecker <frederic@kernel.org>, "Paul E. McKenney" <paulmck@kernel.org>, Neeraj Upadhyay <quic_neeraju@quicinc.com>, Joel Fernandes <joel@joelfernandes.org>, Josh Triplett <josh@joshtriplett.org>, Boqun Feng <boqun.feng@gmail.com>, Mathieu Desnoyers <mathieu.desnoyers@efficios.com>, Lai Jiangshan <jiangshanlai@gmail.com>, Zqiang <qiang.zhang1211@gmail.com>, Andrew Morton <akpm@linux-foundation.org>, Uladzislau Rezki <urezki@gmail.com>, Christoph Hellwig <hch@infradead.org>, Lorenzo Stoakes <lstoakes@gmail.com>, Josh Poimboeuf <jpoimboe@kernel.org>, Jason Baron <jbaron@akamai.com>, Kees Cook <keescook@chromium.org>, Sami Tolvanen <samitolvanen@google.com>, Ard Biesheuvel <ardb@kernel.org>, Nicholas Piggin <npiggin@gmail.com>, Juerg Haefliger <juerg.haefliger@canonical.com>, Nicolas Saenz Julienne <nsaenz@kernel.org>, "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>, Nadav Amit <namit@vmware.com>, Dan Carpenter <error27@gmail.com>, Chuang Wang <nashuiliang@gmail.com>, Yang Jihong <yangjihong1@huawei.com>, Petr Mladek <pmladek@suse.com>, "Jason A. Donenfeld" <Jason@zx2c4.com>, Song Liu <song@kernel.org>, Julian Pidancet <julian.pidancet@oracle.com>, Tom Lendacky <thomas.lendacky@amd.com>, Dionna Glaze <dionnaglaze@google.com>, =?utf-8?q?Thomas_Wei=C3=9Fschuh?= <linux@weissschuh.net>, Juri Lelli <juri.lelli@redhat.com>, Marcelo Tosatti <mtosatti@redhat.com>, Yair Podemsky <ypodemsk@redhat.com>, Daniel Wagner <dwagner@suse.de>, Petr Tesarik <ptesarik@suse.com> Subject: [RFC PATCH v3 03/15] sched/clock: Make sched_clock_running __ro_after_init Date: Tue, 19 Nov 2024 16:34:50 +0100 Message-ID: <20241119153502.41361-4-vschneid@redhat.com> In-Reply-To: <20241119153502.41361-1-vschneid@redhat.com> References: <20241119153502.41361-1-vschneid@redhat.com> Precedence: bulk X-Mailing-List: rcu@vger.kernel.org List-Id: <rcu.vger.kernel.org> List-Subscribe: <mailto:rcu+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:rcu+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 |
Series |
context_tracking,x86: Defer some IPIs until a user->kernel transition
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expand
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diff --git a/kernel/sched/clock.c b/kernel/sched/clock.c index a09655b481402..200e5568b9894 100644 --- a/kernel/sched/clock.c +++ b/kernel/sched/clock.c @@ -66,7 +66,7 @@ notrace unsigned long long __weak sched_clock(void) } EXPORT_SYMBOL_GPL(sched_clock); -static DEFINE_STATIC_KEY_FALSE(sched_clock_running); +static DEFINE_STATIC_KEY_FALSE_RO(sched_clock_running); #ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK /*
sched_clock_running is only ever enabled in the __init functions sched_clock_init() and sched_clock_init_late(), and is never disabled. Mark it __ro_after_init. Signed-off-by: Valentin Schneider <vschneid@redhat.com> --- kernel/sched/clock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)