From: Dave Chinner <david@fromorbit.com>
To: Eric Sandeen <sandeen@sandeen.net>
Cc: xfs mailing list <xfs@oss.sgi.com>
Subject: Re: [PATCH, RFC] more reserved blocks fixups
Date: Thu, 28 Jan 2010 12:58:17 +1100 [thread overview]
Message-ID: <20100128015817.GH15853@discord.disaster> (raw)
In-Reply-To: <4B60C8EE.5080700@sandeen.net>
On Wed, Jan 27, 2010 at 05:14:54PM -0600, Eric Sandeen wrote:
> This mangles the reserved blocks counts a little more.
>
> 1) add a helper function for the default reserved count
> 2) add helper functions to save/restore counts on ro/rw
> 3) save/restore reserved blocks on freeze/thaw
> 4) disallow changing reserved count while readonly
>
> for 2) - maybe better names (save_and_clear?)
> for 4) - maybe allow, but change the _ro field instead?
>
> (TBH not tested yet but wondered if this seems sane)
I was wondering if the save/restore could be encapsualted entirely
within xfs_quiesce_attr(). i.e. save before the superblock write,
restore directly after. That removes the need for a variable in
the xfs_mount structure, and catches both remount,ro and freeze.
What do you think?
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
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next prev parent reply other threads:[~2010-01-28 1:58 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-27 23:14 [PATCH, RFC] more reserved blocks fixups Eric Sandeen
2010-01-28 1:58 ` Dave Chinner [this message]
2010-02-04 16:18 ` Christoph Hellwig
2010-02-05 22:59 ` PATCH V2] " Eric Sandeen
2010-02-06 1:41 ` Alex Elder
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