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From: Dave Chinner <david@fromorbit.com>
To: xfs@oss.sgi.com
Subject: [PATCH 00/22] xfs: metadata CRCs, fourth version
Date: Wed,  3 Apr 2013 16:11:10 +1100	[thread overview]
Message-ID: <1364965892-19623-1-git-send-email-david@fromorbit.com> (raw)

Hi Folks,

New CRC patchset. Previous versions:

http://oss.sgi.com/archives/xfs/2013-01/msg00328.html
http://oss.sgi.com/archives/xfs/2013-02/msg00451.html
http://oss.sgi.com/archives/xfs/2013-03/msg00291.html

This version is based on 3.9-rc4 + TOT xfsdev. 3.9-rc5 has loopback
bugs that make it useless for testing, so I've just kept my tree on
-rc4.

New in this patch set:

        - numerous bug fixes
	- cleanups to addresse Bens review comments
	- logs entire inode allocation buffers
	- reworks the buffer type tracking for log recovery
	- fixes the endian issues reported by sparse
	- splits out the symlink code rearrangement
	- adds support for v5 superblock feature masks
        - add mount warnings about CRC support being experimental

Still to do:

        - Documentation (half written, not in series)
        - DT_* type fields in the directory entries. This can be
	  done with a feature bit if not done in time.
        - storage of attributes larger than 256 bytes in shortform
          attribute forks. Same comment about a feature bit.

The addition of the feature mask support to the superblock added a
new field to the superblock - a log compatibility feature mask. This
is to allow new transactions and recovery features to be added and
prevent kernels that don't understand those features from performing
log recovery. The idea is that clean logs can be mounted by kernels
that don't support the new feature if everything else is compatible,
but if they require log recovery the mount will be aborted. This
means pure log changes don't require a compat/incompat/rocompat
feature bit to be set.

The result of adding this is that all the old CRC enabled
filesystems will not work with this kernel - the CRC field location
changed, and that makes the mount fail hard. So a new userspace will
be needed to test the CRC side of this patchset. (Coming soon!)

Comments, testing welcome...

-Dave.

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             reply	other threads:[~2013-04-03  5:11 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-03  5:11 Dave Chinner [this message]
2013-04-03  5:11 ` [PATCH 01/22] xfs: increase hexdump output in xfs_corruption_error Dave Chinner
2013-04-03  5:11 ` [PATCH 02/22] xfs: add support for large btree blocks Dave Chinner
2013-04-03  5:11 ` [PATCH 03/22] xfs: add CRC checks to the AGF Dave Chinner
2013-04-03  5:11 ` [PATCH 04/22] xfs: add CRC checks to the AGFL Dave Chinner
2013-04-03  5:11 ` [PATCH 05/22] xfs: add CRC checks to the AGI Dave Chinner
2013-04-03  5:11 ` [PATCH 06/22] xfs: add CRC checks for quota blocks Dave Chinner
2013-04-03  5:11 ` [PATCH 07/22] xfs: add version 3 inode format with CRCs Dave Chinner
2013-04-03  5:11 ` [PATCH 08/22] xfs: split out symlink code into it's own file Dave Chinner
2013-04-03  5:11 ` [PATCH 09/22] xfs: add CRC checks to remote symlinks Dave Chinner
2013-04-03  5:11 ` [PATCH 10/22] xfs: add CRC checks to block format directory blocks Dave Chinner
2013-04-03  5:11 ` [PATCH 11/22] xfs: add CRC checking to dir2 free blocks Dave Chinner
2013-04-03  5:11 ` [PATCH 12/22] xfs: add CRC checking to dir2 data blocks Dave Chinner
2013-04-03  5:11 ` [PATCH 13/22] xfs: add CRC checking to dir2 leaf blocks Dave Chinner
2013-04-10 17:46   ` Ben Myers
2013-04-11  2:06     ` Dave Chinner
2013-04-11 16:16       ` Ben Myers
2013-04-11 21:30   ` [PATCH V2 " Dave Chinner
2013-04-03  5:11 ` [PATCH 14/22] xfs: shortform directory offsets change for dir3 format Dave Chinner
2013-04-10 19:52   ` Ben Myers
2013-04-03  5:11 ` [PATCH 15/22] xfs: add CRCs to dir2/da node blocks Dave Chinner
2013-04-22 18:55   ` Ben Myers
2013-04-24  0:33     ` Dave Chinner
2013-04-24  8:58   ` [PATCH V2 " Dave Chinner
2013-04-03  5:11 ` [PATCH 16/22] xfs: add CRCs to attr leaf blocks Dave Chinner
2013-04-23 23:02   ` Ben Myers
2013-04-24  1:17     ` Dave Chinner
2013-04-24  8:58   ` [PATCH V2 " Dave Chinner
2013-04-03  5:11 ` [PATCH 17/22] xfs: split remote attribute code out Dave Chinner
2013-04-24 19:13   ` Ben Myers
2013-04-03  5:11 ` [PATCH 18/22] xfs: add CRC protection to remote attributes Dave Chinner
2013-04-25 18:56   ` Ben Myers
2013-04-30  7:20     ` Dave Chinner
2013-04-03  5:11 ` [PATCH 19/22] xfs: add buffer types to directory and attribute buffers Dave Chinner
2013-04-26 19:09   ` Ben Myers
2013-04-30  7:28     ` Dave Chinner
2013-04-03  5:11 ` [PATCH 20/22] xfs: buffer type overruns blf_flags field Dave Chinner
2013-04-03  5:11 ` [PATCH 21/22] xfs: add CRC checks to the superblock Dave Chinner
2013-04-03  5:11 ` [PATCH 22/22] xfs: implement extended feature masks Dave Chinner
2013-04-05  6:55 ` [PATCH 00/22] xfs: metadata CRCs, fourth version Dave Chinner
2013-04-05  7:00 ` [PATCH 23/22] xfs: add metadata CRC documentation Dave Chinner
2013-04-05 10:45   ` Hans-Peter Jansen
2013-04-05 11:20     ` Dave Howorth
2013-04-07 23:06       ` Dave Chinner
2013-04-05 11:35   ` Brian Foster
2013-04-07 23:08     ` Dave Chinner
2013-04-09  6:49   ` [PATCH V2 " Dave Chinner
2013-04-09  7:33 ` [PATCH 24/22] xfs: Teach dquot recovery about CONFIG_XFS_QUOTA Dave Chinner
2013-04-27 20:44   ` Ben Myers
2013-04-30  6:18     ` Dave Chinner
2013-04-27 20:42 ` [PATCH 00/22] xfs: metadata CRCs, fourth version Ben Myers
2013-04-28 23:25   ` Dave Chinner

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