From: Valentin Schneider <vschneid@redhat.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
linux-arch@vger.kernel.org, x86@kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>,
Borislav Petkov <bp@alien8.de>,
Peter Zijlstra <peterz@infradead.org>,
Josh Poimboeuf <jpoimboe@kernel.org>,
Pawan Gupta <pawan.kumar.gupta@linux.intel.com>,
Ingo Molnar <mingo@redhat.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Wanpeng Li <wanpengli@tencent.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Arnd Bergmann <arnd@arndb.de>, Jason Baron <jbaron@akamai.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ard Biesheuvel <ardb@kernel.org>,
Frederic Weisbecker <frederic@kernel.org>,
"Paul E. McKenney" <paulmck@kernel.org>,
Feng Tang <feng.tang@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
"Mike Rapoport (IBM)" <rppt@kernel.org>,
Vlastimil Babka <vbabka@suse.cz>,
David Hildenbrand <david@redhat.com>,
"ndesaulniers@google.com" <ndesaulniers@google.com>,
Michael Kelley <mikelley@microsoft.com>,
"Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Subject: [PATCH 5/5] x86/tsc: Make __use_tsc __ro_after_init
Date: Mon, 20 Nov 2023 11:55:28 +0100 [thread overview]
Message-ID: <20231120105528.760306-6-vschneid@redhat.com> (raw)
In-Reply-To: <20231120105528.760306-1-vschneid@redhat.com>
__use_tsc is only ever enabled in __init tsc_enable_sched_clock(), so mark
it as __ro_after_init.
Signed-off-by: Valentin Schneider <vschneid@redhat.com>
---
arch/x86/kernel/tsc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index 15f97c0abc9d0..f19b42ea40573 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -44,7 +44,7 @@ EXPORT_SYMBOL(tsc_khz);
static int __read_mostly tsc_unstable;
static unsigned int __initdata tsc_early_khz;
-static DEFINE_STATIC_KEY_FALSE(__use_tsc);
+static DEFINE_STATIC_KEY_FALSE_RO(__use_tsc);
int tsc_clocksource_reliable;
--
2.41.0
next prev parent reply other threads:[~2023-11-20 10:56 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-20 10:55 [PATCH 0/5] jump_label: Fix __ro_after_init keys for modules & annotate some keys Valentin Schneider
2023-11-20 10:55 ` [PATCH 1/5] jump_label,module: Don't alloc static_key_mod for __ro_after_init keys Valentin Schneider
2023-11-20 21:38 ` kernel test robot
2023-11-20 22:47 ` kernel test robot
2023-11-20 10:55 ` [PATCH 2/5] context_tracking: Make context_tracking_key __ro_after_init Valentin Schneider
2023-11-20 10:55 ` [PATCH 3/5] x86/kvm: Make kvm_async_pf_enabled __ro_after_init Valentin Schneider
2023-11-27 22:20 ` Sean Christopherson
2023-11-20 10:55 ` [PATCH 4/5] x86/speculation: Make mds_user_clear __ro_after_init Valentin Schneider
2023-11-20 10:55 ` Valentin Schneider [this message]
2023-11-20 12:05 ` [PATCH 5/5] x86/tsc: Make __use_tsc __ro_after_init Peter Zijlstra
2023-12-04 16:51 ` Valentin Schneider
2023-12-04 18:20 ` Peter Zijlstra
2024-01-02 15:09 ` Valentin Schneider
2023-12-02 16:36 ` [PATCH 0/5] jump_label: Fix __ro_after_init keys for modules & annotate some keys Josh Poimboeuf
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20231120105528.760306-6-vschneid@redhat.com \
--to=vschneid@redhat.com \
--cc=akpm@linux-foundation.org \
--cc=ardb@kernel.org \
--cc=arnd@arndb.de \
--cc=bp@alien8.de \
--cc=dave.hansen@linux.intel.com \
--cc=david@redhat.com \
--cc=feng.tang@intel.com \
--cc=frederic@kernel.org \
--cc=hpa@zytor.com \
--cc=jbaron@akamai.com \
--cc=jpoimboe@kernel.org \
--cc=kvm@vger.kernel.org \
--cc=linux-arch@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mhiramat@kernel.org \
--cc=mikelley@microsoft.com \
--cc=mingo@redhat.com \
--cc=ndesaulniers@google.com \
--cc=paulmck@kernel.org \
--cc=pawan.kumar.gupta@linux.intel.com \
--cc=pbonzini@redhat.com \
--cc=peterz@infradead.org \
--cc=rostedt@goodmis.org \
--cc=rppt@kernel.org \
--cc=tglx@linutronix.de \
--cc=vbabka@suse.cz \
--cc=vkuznets@redhat.com \
--cc=wanpengli@tencent.com \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).