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From: Oleg Nesterov <oleg@redhat.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/2] (Was: perf_event_mmap(vma) && !vma->vm_mm)
Date: Thu, 17 Oct 2013 17:27:17 +0200	[thread overview]
Message-ID: <20131017152717.GA15308@redhat.com> (raw)
In-Reply-To: <20131017152027.GA14098@redhat.com>

On 10/17, Oleg Nesterov wrote:
>
> 	- we do not really need "len", we can simply do
>
> 		size = strlen(name) + 1;
> 		while (size % sizeof(u64))
> 			name[size++] = '\0';
>
> 	  although I won't argue if you dislike "size & 7" in while().

Or, perhaps,

	while (!IS_ALIGNED(size, sizeof(u64)))
		name[size++] = '\0';

to make it self-explanatory.

Oleg.


  reply	other threads:[~2013-10-17 15:34 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-12 19:22 perf_event_mmap(vma) && !vma->vm_mm Oleg Nesterov
2013-10-14 10:24 ` Peter Zijlstra
2013-10-16 20:09   ` [PATCH 0/2] (Was: perf_event_mmap(vma) && !vma->vm_mm) Oleg Nesterov
2013-10-16 20:09     ` [PATCH 1/2] perf: Kill the dead !vma->vm_mm code in perf_event_mmap_event() Oleg Nesterov
2013-10-29 14:08       ` [tip:perf/core] perf: Kill the dead !vma-> vm_mm " tip-bot for Oleg Nesterov
2013-10-16 20:10     ` [PATCH 2/2] perf: Do not waste PAGE_SIZE bytes for ALIGN(8) " Oleg Nesterov
2013-10-29 14:08       ` [tip:perf/core] " tip-bot for Oleg Nesterov
2013-10-16 20:28     ` [PATCH 0/2] (Was: perf_event_mmap(vma) && !vma->vm_mm) Peter Zijlstra
2013-10-16 20:43       ` Oleg Nesterov
2013-10-16 20:55         ` Peter Zijlstra
2013-10-16 20:55           ` Oleg Nesterov
2013-10-16 20:58         ` Peter Zijlstra
2013-10-16 20:58           ` Oleg Nesterov
2013-10-16 21:16             ` Peter Zijlstra
2013-10-17 15:20               ` Oleg Nesterov
2013-10-17 15:27                 ` Oleg Nesterov [this message]
2013-10-17 16:47                   ` Peter Zijlstra
2013-10-17 18:24                     ` Oleg Nesterov
2013-10-17 21:32                       ` Peter Zijlstra
2013-11-06 13:19                       ` [tip:perf/core] perf: Factor out strncpy() in perf_event_mmap_event() tip-bot for Oleg Nesterov
2013-10-17 16:38                 ` [PATCH 0/2] (Was: perf_event_mmap(vma) && !vma->vm_mm) Peter Zijlstra
2013-10-17 15:22     ` [PATCH 3/2] perf: Optimize the fill/align code in perf_event_mmap_event() Oleg Nesterov

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