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From: mingo@elte.hu (Ingo Molnar)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 4/6] perf-events: export enable/disable event symbols to kernel modules
Date: Fri, 26 Feb 2010 09:23:15 +0100	[thread overview]
Message-ID: <20100226082315.GC15885@elte.hu> (raw)
In-Reply-To: <1267124175-21721-5-git-send-email-will.deacon@arm.com>


* Will Deacon <will.deacon@arm.com> wrote:

> The perf_event_enable and perf_event_disable functions are used to
> control the activation of perf-events for a given context or CPU.
> 
> This patch exports these symbols so that they can be used by kernel
> modules. Without these symbols, an event must be destroyed and recreated
> to disable or enable it respectively. The maximum number of perf-events
> is also made available to modules via the perf_get_max_events function.
> 
> Cc: Ingo Molnar <mingo@elte.hu>
> Signed-off-by: Will Deacon <will.deacon@arm.com>
> ---
>  include/linux/perf_event.h |    1 +
>  kernel/perf_event.c        |    8 ++++++++
>  2 files changed, 9 insertions(+), 0 deletions(-)

Hm, what modules would like to use them, and in what fashion?

Thanks,

	Ingo

  parent reply	other threads:[~2010-02-26  8:23 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-02-25 18:56 [PATCH 0/6] ARM: oprofile: use perf-events framework as backend Will Deacon
2010-02-25 18:56 ` [PATCH 1/6] ARM: perf-events: add Realview PMU IRQs to pmu.c Will Deacon
2010-02-25 18:56   ` [PATCH 2/6] ARM: perf-events: use numeric ID to identify PMU Will Deacon
2010-02-25 18:56     ` [PATCH 3/6] ARM: perf-events: add support for xscale PMUs Will Deacon
2010-02-25 18:56       ` [PATCH 4/6] perf-events: export enable/disable event symbols to kernel modules Will Deacon
2010-02-25 18:56         ` [PATCH 5/6] ARM: oprofile: use perf-events framework as backend Will Deacon
2010-02-25 18:56           ` [PATCH 6/6] ARM: oprofile: remove old files and update KConfig Will Deacon
2010-02-26  9:28           ` [PATCH 5/6] ARM: oprofile: use perf-events framework as backend Jean Pihet
2010-02-26 10:01             ` Will Deacon
2010-02-26 10:25               ` Jean Pihet
2010-03-02 15:54                 ` Will Deacon
2010-02-26  8:23         ` Ingo Molnar [this message]
2010-02-26  9:53           ` [PATCH 4/6] perf-events: export enable/disable event symbols to kernel modules Will Deacon
2010-02-26  9:10     ` [PATCH 2/6] ARM: perf-events: use numeric ID to identify PMU Jean Pihet
2010-02-26 11:17       ` Will Deacon
2010-02-26  9:07 ` [PATCH 0/6] ARM: oprofile: use perf-events framework as backend Jean Pihet
  -- strict thread matches above, loose matches on Subject: below --
2010-03-10 10:41 [PATCH 0/6] ARM: oprofile: use perf-events framework as backend [v2] Will Deacon
2010-03-10 10:41 ` [PATCH 1/6] ARM: perf-events: add Realview PMU IRQs to pmu.c Will Deacon
2010-03-10 10:41   ` [PATCH 2/6] ARM: perf-events: use numeric ID to identify PMU Will Deacon
2010-03-10 10:41     ` [PATCH 3/6] ARM: perf-events: add support for xscale PMUs Will Deacon
2010-03-10 10:41       ` [PATCH 4/6] perf-events: export enable/disable event symbols to kernel modules Will Deacon
2010-03-10 10:56         ` Peter Zijlstra
2010-03-10 11:47           ` Will Deacon
2010-03-10 14:30             ` Peter Zijlstra
2010-03-10 14:41               ` Will Deacon
2010-03-10 15:01               ` Robert Richter

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