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From: Arnd Bergmann <arnd@arndb.de>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>, Ingo Molnar <mingo@elte.hu>,
	Corey Ashford <cjashfor@linux.vnet.ibm.com>,
	linux-kernel@vger.kernel.org,
	Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH 3/5] perf_counter: rework ioctl()s
Date: Tue, 12 May 2009 09:52:12 +0200	[thread overview]
Message-ID: <200905120952.12847.arnd@arndb.de> (raw)
In-Reply-To: <1242112226.11251.315.camel@twins>

On Tuesday 12 May 2009, Peter Zijlstra wrote:
> Ah, so _IO() gets an unsigned long 3rd argument.
> _IOW() treats the 3rd arg as a (type __user *) and copies the bits over
> _IOR() copies the bits back out to userspace
> _IORW() does both
> 
> In which case the below should fix things up, no?
> 

Yes, this looks good now.

Thanks,

	Arnd <><

  reply	other threads:[~2009-05-12  7:52 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-08 16:52 [PATCH 0/5] pending patches Peter Zijlstra
2009-05-08 16:52 ` [PATCH 1/5] hrtimer: per-cpu cached values of ktime Peter Zijlstra
2009-05-08 23:10   ` Andrew Morton
2009-05-09 19:45   ` Linus Torvalds
2009-05-09 19:59     ` Peter Zijlstra
2009-05-08 16:52 ` [PATCH 2/5] perf_counter: optimize perf_counter_task_tick() Peter Zijlstra
2009-05-08 18:39   ` [tip:perfcounters/core] " tip-bot for Peter Zijlstra
2009-05-08 16:52 ` [PATCH 3/5] perf_counter: rework ioctl()s Peter Zijlstra
2009-05-08 18:39   ` [tip:perfcounters/core] " tip-bot for Peter Zijlstra
2009-05-11  1:29   ` [PATCH 3/5] " Paul Mackerras
2009-05-11 15:12     ` Peter Zijlstra
2009-05-12  6:24       ` Paul Mackerras
2009-05-11 18:12     ` Corey Ashford
2009-05-11 20:52       ` Paul Mackerras
2009-05-11 22:37         ` Corey Ashford
2009-05-12  6:16           ` Paul Mackerras
2009-05-12 16:15             ` Corey Ashford
2009-05-12 22:18               ` Paul Mackerras
2009-05-12 22:51                 ` Corey Ashford
2009-05-11 23:58   ` Arnd Bergmann
2009-05-12  6:11     ` Peter Zijlstra
2009-05-12  6:22       ` Paul Mackerras
2009-05-12  6:27         ` Peter Zijlstra
2009-05-12  7:10           ` Peter Zijlstra
2009-05-12  7:52             ` Arnd Bergmann [this message]
2009-05-12 10:59               ` [PATCH] perf_counter: fix ioctl()s Peter Zijlstra
2009-05-12 11:21             ` [PATCH 3/5] perf_counter: rework ioctl()s Paul Mackerras
2009-05-08 16:52 ` [PATCH 4/5] perf_counter: PERF_RECORD_CONFIG Peter Zijlstra
2009-05-08 18:39   ` [tip:perfcounters/core] perf_counter: add PERF_RECORD_CONFIG tip-bot for Peter Zijlstra
2009-05-08 16:52 ` [PATCH 5/5] perf_counter: PERF_RECORD_CPU Peter Zijlstra
2009-05-08 18:40   ` [tip:perfcounters/core] perf_counter: add PERF_RECORD_CPU tip-bot for Peter Zijlstra

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