linux-kernel - Re: [PATCH] LogFS take three

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Date:	Tue, 15 May 2007 19:37:36 -0700
From:	Roland Dreier <rdreier@...co.com>
To:	JÃ¶rn Engel <joern@...ybastard.org>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-mtd@...ts.infradead.org, akpm@...l.org,
	Albert Cahalan <acahalan@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Jan Engelhardt <jengelh@...ux01.gwdg.de>,
	Evgeniy Polyakov <johnpol@....mipt.ru>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Greg KH <greg@...ah.com>, Ingo Oeser <ioe-lkml@...eria.de>
Subject: Re: [PATCH] LogFS take three

There are rather a lot of of FIXME comments, including scary stuff like

 > +	/*
 > +	 * FIXME: this cannot be right but it does "fix" a bug of i_count
 > +	 * dropping too low.  Needs more thought.
 > +	 */
 > +	atomic_inc(&old_dentry->d_inode->i_count);

and

 > +int __logfs_write_inode(struct inode *inode)
 > +{
 > +	/*
 > +	 * FIXME: Those two inodes are 512 bytes in total.  Not good to
 > +	 * have on the stack.  Possibly the best solution would be to bite
 > +	 * the bullet and do another format change before release and
 > +	 * shrink the inodes.
 > +	 */
 > +	struct logfs_disk_inode old, new;

are you going to change the format?  or fix this some other way?

I think a sweep through the code searching for FIXME and at least
rewriting all such comments to look like stuff that can be deferred
would be warranted ;)

 - R.
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