From: Christoph Hellwig <hch@infradead.org>
To: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Cc: Christoph Hellwig <hch@infradead.org>, xfs@oss.sgi.com
Subject: Re: [PATCH 13/13] xfs: add CRC checks for quota blocks
Date: Fri, 13 Feb 2009 15:10:24 -0500 [thread overview]
Message-ID: <20090213201024.GA7218@infradead.org> (raw)
In-Reply-To: <20090212064128.GC824@josefsipek.net>
On Thu, Feb 12, 2009 at 01:41:28AM -0500, Josef 'Jeff' Sipek wrote:
> > xfs_disk_dquot_t dd_diskdq; /* portion that lives incore as well */
> > - char dd_fill[32]; /* filling for posterity */
> > + char dd_fill[12]; /* filling for posterity */
> > +
> > + /*
> > + * These two are only present one filesystems with the CRC bits set.
> > + */
> > + __be32 dd_crc; /* checksum */
> > + uuid_t dd_uuid; /* location information */
> > } xfs_dqblk_t;
>
> Again, why put the crc/uuid at the end?
So that we can add additional infos either to xfs_disk_dquot_t
(preserved in-core) or xfs_dqblk_t (purly on-disk).
> > + if (!xfs_verify_cksum((char *)d, sizeof(struct xfs_dqblk),
> > + offsetof(struct xfs_dqblk, dd_crc))) {
> > +// !uuid_equal(&agfl->agfl_uuid, &mp->m_sb.sb_uuid) ||
>
> Dead code?
Sorry, sent out a too early version. The final patch actually verifies
the uuid and the correct location in the quota file.
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prev parent reply other threads:[~2009-02-13 20:11 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-10 20:22 [PATCH 00/13] Updated CRC patches Christoph Hellwig
2009-02-10 20:22 ` [PATCH 01/13] xfs: cleanup xlog_bread Christoph Hellwig
2009-02-10 20:22 ` [PATCH 02/13] xfs: remove m_litino Christoph Hellwig
2009-02-10 20:22 ` [PATCH 03/13] xfs: remove m_attroffset Christoph Hellwig
2009-02-10 20:22 ` [PATCH 04/13] xfs: take inode version into account in XFS_LITINO Christoph Hellwig
2009-02-10 20:22 ` [PATCH 05/13] xfs: add CRC infrastructure Christoph Hellwig
2009-02-12 6:10 ` Josef 'Jeff' Sipek
2009-02-10 20:22 ` [PATCH 06/13] xfs: add support for large btree blocks Christoph Hellwig
2009-02-10 20:22 ` [PATCH 07/13] xfs: add CRC checks to the superblock Christoph Hellwig
2009-02-10 20:22 ` [PATCH 08/13] xfs: add CRC checks to the AGF Christoph Hellwig
2009-02-10 20:22 ` [PATCH 09/13] xfs: add CRC checks to the AGI Christoph Hellwig
2009-02-10 20:22 ` [PATCH 10/13] xfs: add CRC checks to the AGFL Christoph Hellwig
2009-02-11 7:54 ` Dave Chinner
2009-02-15 18:23 ` Christoph Hellwig
2009-02-10 20:22 ` [PATCH 11/13] xfs: add CRC checks to the log Christoph Hellwig
2009-02-10 20:22 ` [PATCH 12/13] xfs: add version 3 inode format with CRCs Christoph Hellwig
2009-02-12 6:38 ` Josef 'Jeff' Sipek
2009-02-12 18:42 ` Eric Sandeen
2009-02-12 18:51 ` Christoph Hellwig
2009-02-10 20:22 ` [PATCH 13/13] xfs: add CRC checks for quota blocks Christoph Hellwig
2009-02-12 6:41 ` Josef 'Jeff' Sipek
2009-02-13 20:10 ` Christoph Hellwig [this message]
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