linux-kernel - Re: [RESEND PATCH] fs/super.c set_anon

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Message-ID: <20121026131441.GA22256@andromeda.usersys.redhat.com>
Date:	Fri, 26 Oct 2012 11:14:41 -0200
From:	Carlos Maiolino <cmaiolino@...hat.com>
To:	Abhijit Pawar <abhi.c.pawar@...il.com>
Cc:	linux-fsdevel@...r.kernel.org,
	"linux-btrfs@...r.kernel.org" <linux-btrfs@...r.kernel.org>,
	linux-kernel@...r.kernel.org, gregkh@...uxfoundation.org
Subject: Re: [RESEND PATCH] fs/super.c set_anon_super calling optimization

Hi,

On Thu, Oct 25, 2012 at 05:08:19PM +0530, Abhijit Pawar wrote:
> Hi,
> set_anon_super is called by many filesystems. Some call directly and
> some call through the wrapper. Many of them in the wrapper's call to
> this function are passing the second argument to this function which
> is not used anywhere.
> 
> This patch replaces the second variable with NULL.
> 

If the variable isn't used anymore, why don't just get rid of it, instead of
call the function passing a NULL pointer on it?

-- 
--Carlos
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