linux-kernel - Re: [PATCH v2 1/4] copy_signal cleanup: use zalloc and remove initializations

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Message-ID: <20091205162511.GA23152@redhat.com>
Date:	Sat, 5 Dec 2009 17:25:11 +0100
From:	Oleg Nesterov <oleg@...hat.com>
To:	Veaceslav Falico <vfalico@...hat.com>
Cc:	linux-kernel@...r.kernel.org, Greg Kroah-Hartman <gregkh@...e.de>,
	Al Viro <viro@...iv.linux.org.uk>,
	Miloslav Trmac <mitr@...hat.com>,
	James Morris <jmorris@...ei.org>,
	Alan Cox <alan@...ux.intel.com>, Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <peterz@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	Renaud Lottiaux <renaud.lottiaux@...labs.com>,
	Louis Rilling <louis.rilling@...labs.com>,
	David Howells <dhowells@...hat.com>,
	Stanislaw Gruszka <sgruszka@...hat.com>
Subject: Re: [PATCH v2 1/4] copy_signal cleanup: use zalloc and remove
	initializations

On 12/04, Veaceslav Falico wrote:
>
> Use kmem_cache_zalloc() on signal creation and remove unneeded initialization
> lines in copy_signal().
>
> Signed-off-by: Veaceslav Falico <vfalico@...hat.com>
> ---
>
> diff --git a/kernel/fork.c b/kernel/fork.c
> index 166b8c4..160477d 100644
> @@ -855,7 +844,7 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
>  	if (clone_flags & CLONE_THREAD)
>  		return 0;
>
> -	sig = kmem_cache_alloc(signal_cachep, GFP_KERNEL);
> +	sig = kmem_cache_zalloc(signal_cachep, GFP_KERNEL);
> ...

I think this is nice cleanup,

Acked-by: Oleg Nesterov <oleg@...hat.com>

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