From: Al Viro <viro@ftp.linux.org.uk>
To: rae l <crquan@gmail.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>, linux-kernel@vger.kernel.org
Subject: Re: [RFC] fs/super.c: Why alloc_super use a static variable default_op?
Date: Wed, 25 Jul 2007 05:14:07 +0100 [thread overview]
Message-ID: <20070725041407.GA27237@ftp.linux.org.uk> (raw)
In-Reply-To: <91b13c310707242048lb54b071u5e7fc4272b142475@mail.gmail.com>
On Wed, Jul 25, 2007 at 11:48:35AM +0800, rae l wrote:
> Why alloc_super use a static variable default_op?
> the static struct super_operations default_op is just all zeros, and
> just referenced as the initial value of a new allocated super_block,
> what does it for?
So that we would not have to care about ->s_op *ever* being NULL.
next prev parent reply other threads:[~2007-07-25 4:14 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-25 3:48 [RFC] fs/super.c: Why alloc_super use a static variable default_op? rae l
2007-07-25 4:14 ` Al Viro [this message]
2007-07-25 4:29 ` rae l
2007-07-25 4:37 ` Al Viro
2007-07-25 5:21 ` rae l
2007-07-25 6:39 ` Al Viro
2007-07-25 6:43 ` Al Viro
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