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From: tip-bot for Dou Liyang <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: efault@gmx.de, pasha.tatashin@oracle.com, peterz@infradead.org,
	torvalds@linux-foundation.org, tglx@linutronix.de,
	corbet@lwn.net, linux-kernel@vger.kernel.org, hpa@zytor.com,
	douly.fnst@cn.fujitsu.com, mingo@kernel.org
Subject: [tip:sched/core] x86/tsc: Append the 'tsc=' description for the 'tsc=unstable' boot parameter
Date: Tue, 10 Oct 2017 04:02:42 -0700	[thread overview]
Message-ID: <tip-6be53520ad8f87dc748f381e4e8e6a846a4b466b@git.kernel.org> (raw)
In-Reply-To: <1507539813-11420-1-git-send-email-douly.fnst@cn.fujitsu.com>

Commit-ID:  6be53520ad8f87dc748f381e4e8e6a846a4b466b
Gitweb:     https://git.kernel.org/tip/6be53520ad8f87dc748f381e4e8e6a846a4b466b
Author:     Dou Liyang <douly.fnst@cn.fujitsu.com>
AuthorDate: Mon, 9 Oct 2017 17:03:33 +0800
Committer:  Ingo Molnar <mingo@kernel.org>
CommitDate: Tue, 10 Oct 2017 11:45:42 +0200

x86/tsc: Append the 'tsc=' description for the 'tsc=unstable' boot parameter

Commit:

  8309f86cd41e ("x86/tsc: Provide 'tsc=unstable' boot parameter")

added a new 'tsc=unstable' parameter, but didn't document it.

Document it.

Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: <corbet@lwn.net>
Cc: <pasha.tatashin@oracle.com>
Cc: <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1507539813-11420-1-git-send-email-douly.fnst@cn.fujitsu.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 Documentation/admin-guide/kernel-parameters.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 0549662..6b99c8b 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -4194,6 +4194,9 @@
 			Used to run time disable IRQ_TIME_ACCOUNTING on any
 			platforms where RDTSC is slow and this accounting
 			can add overhead.
+			[x86] unstable: mark the TSC clocksource as unstable, this
+			marks the TSC unconditionally unstable at bootup and
+			avoids any further wobbles once the TSC watchdog notices.
 
 	turbografx.map[2|3]=	[HW,JOY]
 			TurboGraFX parallel port interface

      parent reply	other threads:[~2017-10-10 11:07 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-09  9:03 [PATCH] x86/tsc: Append description for " Dou Liyang
2017-10-09 12:25 ` Pavel Tatashin
2017-10-10  1:39   ` Dou Liyang
2017-10-10 11:02 ` tip-bot for Dou Liyang [this message]

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