linux-ext4 - Re: [PATCH 1/10] VFS: Fix error handling of write_super

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Message-ID: <20080922105956.GA16069@infradead.org>
Date:	Mon, 22 Sep 2008 06:59:56 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Takashi Sato <t-sato@...jp.nec.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Christoph Hellwig <hch@...radead.org>,
	"linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
	"dm-devel@...hat.com" <dm-devel@...hat.com>,
	"viro@...IV.linux.org.uk" <viro@...IV.linux.org.uk>,
	"linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>,
	"xfs@....sgi.com" <xfs@....sgi.com>,
	"axboe@...nel.dk" <axboe@...nel.dk>,
	"mtk.manpages@...glemail.com" <mtk.manpages@...glemail.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/10] VFS: Fix error handling of
	write_super_lockfs/unlockfs

On Mon, Sep 22, 2008 at 07:55:26PM +0900, Takashi Sato wrote:
> I've changed the type of write_super_lockfs and unlockfs from "void" to
> "int" so that they can return an error. 

Returning an error from the freeze operation makes sense, but for the
unfreeze I don't see the point.  You must however change all existing
instances to actually return a value (even if it's always 0 for now)
to avoid breaking git bisect.

If you touch all instances anyway, it would be nice to rename them
to freeze / unfreze as the current names are more confusing.

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