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From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: darrick.wong@oracle.com
Cc: linux-xfs@vger.kernel.org
Subject: [PATCH v9 00/19] xfs: add realtime reverse-mapping support
Date: Thu, 31 Aug 2017 13:33:24 -0700	[thread overview]
Message-ID: <150421160433.17458.10817316901867396010.stgit@magnolia> (raw)

Hi all,

This is the ninth revision of a patchset that adds to XFS kernel support
for reverse mapping for the realtime device.  The patches haven't
changed significantly since the previous posting in August 2016.

At the beginning of the set are patches to implement storing B+tree
leaves in an inode root, since the realtime rmapbt is rooted in an
inode, unlike the regular rmapbt which is rooted in an AG block.
Prior to this, the only btree that could be rooted in the inode fork
was the block mapping btree; if all the extent records fit in the
inode, format would be switched from 'btree' to 'extents'.

The next few patches widen the reverse mapping routines to fit the
64-bit numbers required to store information about the realtime
device and establish a new b+tree type (rtrmapbt) for the realtime
variant of the rmapbt.  After that are a few patches to handle rooting
the rtrmapbt in a specific inode that's referenced by the superblock.

Finally, there are patches to implement GETFSMAP with the rtrmapbt and
scrub functionality for the rtrmapbt and rtbitmap; and then wire up the
online scrub functionality.

If you're going to start using this mess, you probably ought to just
pull from my github trees for kernel[1], xfsprogs[2], xfstests[3].  The
kernel patches in the git trees should apply to 4.13-rc7; xfsprogs
patches to for-next; and xfstest to master.

This is an extraordinary way to eat your data.  Enjoy! 
Comments and questions are, as always, welcome.

--D

[1] https://git.kernel.org/cgit/linux/kernel/git/djwong/xfs-linux.git/log/?h=djwong-wtf
[2] https://git.kernel.org/cgit/linux/kernel/git/djwong/xfsprogs-dev.git/log/?h=djwong-wtf
[3] https://git.kernel.org/cgit/linux/kernel/git/djwong/xfstests-dev.git/log/?h=djwong-wtf

             reply	other threads:[~2017-08-31 20:33 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-31 20:33 Darrick J. Wong [this message]
2017-08-31 20:33 ` [PATCH 01/19] xfs: make iroot_realloc a btree function Darrick J. Wong
2017-08-31 20:33 ` [PATCH 02/19] xfs: support storing records in the inode core root Darrick J. Wong
2017-08-31 20:33 ` [PATCH 03/19] xfs: widen xfs_refcount_irec fields to handle realtime rmapbt Darrick J. Wong
2017-08-31 20:33 ` [PATCH 04/19] xfs: introduce realtime rmap btree definitions Darrick J. Wong
2017-08-31 20:33 ` [PATCH 05/19] xfs: define the on-disk realtime rmap btree format Darrick J. Wong
2017-08-31 20:34 ` [PATCH 06/19] xfs: realtime rmap btree transaction reservations Darrick J. Wong
2017-08-31 20:34 ` [PATCH 07/19] xfs: add realtime rmap btree operations Darrick J. Wong
2017-08-31 20:34 ` [PATCH 08/19] xfs: prepare rmap functions to deal with rtrmapbt Darrick J. Wong
2017-08-31 20:34 ` [PATCH 09/19] xfs: add a realtime flag to the rmap update log redo items Darrick J. Wong
2017-08-31 20:34 ` [PATCH 10/19] xfs: add realtime rmap btree block detection to log recovery Darrick J. Wong
2017-08-31 20:34 ` [PATCH 11/19] xfs: add realtime reverse map inode to superblock Darrick J. Wong
2017-08-31 20:34 ` [PATCH 12/19] xfs: wire up a new inode fork type for the realtime rmap Darrick J. Wong
2017-08-31 20:34 ` [PATCH 13/19] xfs: don't assume a left rmap when allocating a new rmap Darrick J. Wong
2017-08-31 20:34 ` [PATCH 14/19] xfs: wire up rmap map and unmap to the realtime rmapbt Darrick J. Wong
2017-08-31 20:34 ` [PATCH 15/19] xfs: enable realtime rmap btree Darrick J. Wong
2017-08-31 20:35 ` [PATCH 16/19] xfs: wire up getfsmap to the realtime reverse mapping btree Darrick J. Wong
2017-08-31 20:35 ` [PATCH 17/19] xfs: scrub the realtime rmapbt Darrick J. Wong
2017-08-31 20:35 ` [PATCH 18/19] xfs: cross-reference realtime bitmap to realtime rmapbt scrubber Darrick J. Wong
2017-08-31 20:35 ` [PATCH 19/19] xfs: cross-reference the realtime rmapbt Darrick J. Wong

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