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From: David Miller <davem@davemloft.net>
To: 92siuyang@gmail.com
Cc: peterz@infradead.org, mingo@redhat.com, acme@kernel.org,
	alexander.shishkin@linux.intel.com, jolsa@redhat.com,
	namhyung@kernel.org, linux-kernel@vger.kernel.org,
	sparclinux@vger.kernel.org
Subject: Re: [PATCH] sparc: perf: fix updated event period in response to PERF_EVENT_IOC_PERIOD
Date: Sun, 02 Jun 2019 22:16:48 -0700 (PDT)	[thread overview]
Message-ID: <20190602.221648.1225654208143233174.davem@davemloft.net> (raw)
In-Reply-To: <1559096508-25847-1-git-send-email-92siuyang@gmail.com>

From: Young Xiao <92siuyang@gmail.com>
Date: Wed, 29 May 2019 10:21:48 +0800

> The PERF_EVENT_IOC_PERIOD ioctl command can be used to change the
> sample period of a running perf_event. Consequently, when calculating
> the next event period, the new period will only be considered after the
> previous one has overflowed.
> 
> This patch changes the calculation of the remaining event ticks so that
> they are offset if the period has changed.
> 
> See commit 3581fe0ef37c ("ARM: 7556/1: perf: fix updated event period in
> response to PERF_EVENT_IOC_PERIOD") for details.
> 
> Signed-off-by: Young Xiao <92siuyang@gmail.com>

Applied, thanks.

      reply	other threads:[~2019-06-03  5:16 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-29  2:21 Young Xiao
2019-06-03  5:16 ` David Miller [this message]

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