linux-ext4 - Re: [PATCH 3/3] ext4: Use separate super_operations structure for no

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Message-ID: <20090501144729.GA1459@infradead.org>
Date:	Fri, 1 May 2009 10:47:29 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Andreas Dilger <adilger@....com>
Cc:	Theodore Ts'o <tytso@....edu>,
	Ext4 Developers List <linux-ext4@...r.kernel.org>
Subject: Re: [PATCH 3/3] ext4: Use separate super_operations structure for
	no_journal filesystems

On Fri, May 01, 2009 at 04:42:53AM -0600, Andreas Dilger wrote:
> On May 01, 2009  00:37 -0400, Theodore Ts'o wrote:
> > @@ -3923,6 +3911,12 @@ static int __init init_ext4_fs(void)
> > +	ext4_nojournal_sops = ext4_sops;
> > +	ext4_nojournal_sops.write_super = ext4_write_super;
> > +	ext4_nojournal_sops.sync_fs = 0;
> > +	ext4_nojournal_sops.freeze_fs = 0;
> > +	ext4_nojournal_sops.unfreeze_fs = 0;
> 
> I thought the general policy these days was to make a static const
> ops struct so that it cannot be changed (correctly or incorrectly)?

Yeah.  Having the super ops in the normal style would be a lot more
readable.  We don't copy mostly the same inode or file operations
either.

And to be super-pedantic NULL pointer should be initialized as NULL, not
0.

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