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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 v11 00/21] xfs: realtime reverse-mapping support
Date: Tue, 31 Dec 2019 17:16:19 -0800	[thread overview]
Message-ID: <157784137939.1368137.1149711841610071256.stgit@magnolia> (raw)

Hi all,

This is the latest revision of a patchset that adds to XFS kernel
support for reverse mapping for the realtime device.  This time around
I've fixed some of the bitrot that I've noticed over the past few
months, and most notably have converted rtrmapbt to use the metadata
inode directory feature instead of burning more space in the superblock.

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 git trees, which are linked below.

This is an extraordinary way to destroy everything.  Enjoy!
Comments and questions are, as always, welcome.

--D

kernel git tree:
https://git.kernel.org/cgit/linux/kernel/git/djwong/xfs-linux.git/log/?h=realtime-rmap

xfsprogs git tree:
https://git.kernel.org/cgit/linux/kernel/git/djwong/xfsprogs-dev.git/log/?h=realtime-rmap

fstests git tree:
https://git.kernel.org/cgit/linux/kernel/git/djwong/xfstests-dev.git/log/?h=realtime-rmap

             reply	other threads:[~2020-01-01  1:18 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-01  1:16 Darrick J. Wong [this message]
2020-01-01  1:16 ` [PATCH 01/21] xfs: make iroot_realloc a btree function Darrick J. Wong
2020-01-01  1:16 ` [PATCH 02/21] xfs: support storing records in the inode core root Darrick J. Wong
2020-01-01  1:16 ` [PATCH 03/21] xfs: widen xfs_rmap_irec fields to handle realtime rmapbt Darrick J. Wong
2020-01-01  1:16 ` [PATCH 04/21] xfs: introduce realtime rmap btree definitions Darrick J. Wong
2020-01-01  1:16 ` [PATCH 05/21] xfs: define the on-disk realtime rmap btree format Darrick J. Wong
2020-01-01  1:16 ` [PATCH 06/21] xfs: realtime rmap btree transaction reservations Darrick J. Wong
2020-01-01  1:17 ` [PATCH 07/21] xfs: add realtime rmap btree operations Darrick J. Wong
2020-01-01  1:17 ` [PATCH 08/21] xfs: prepare rmap functions to deal with rtrmapbt Darrick J. Wong
2020-01-01  1:17 ` [PATCH 09/21] xfs: add a realtime flag to the rmap update log redo items Darrick J. Wong
2020-01-01  1:17 ` [PATCH 10/21] xfs: add realtime rmap btree block detection to log recovery Darrick J. Wong
2020-01-01  1:17 ` [PATCH 11/21] xfs: add realtime reverse map inode to superblock Darrick J. Wong
2020-01-01  1:17 ` [PATCH 12/21] xfs: wire up a new inode fork type for the realtime rmap Darrick J. Wong
2020-01-01  1:17 ` [PATCH 13/21] xfs: wire up rmap map and unmap to the realtime rmapbt Darrick J. Wong
2020-01-01  1:17 ` [PATCH 14/21] xfs: create routine to allocate and initialize a realtime rmap btree inode Darrick J. Wong
2020-01-01  1:17 ` [PATCH 15/21] xfs: dynamically create the realtime rmapbt inode when attaching rtdev Darrick J. Wong
2020-01-01  1:17 ` [PATCH 16/21] xfs: enable realtime rmap btree Darrick J. Wong
2020-01-01  1:18 ` [PATCH 17/21] xfs: wire up getfsmap to the realtime reverse mapping btree Darrick J. Wong
2020-01-01  1:18 ` [PATCH 18/21] xfs: scrub the realtime rmapbt Darrick J. Wong
2020-01-01  1:18 ` [PATCH 19/21] xfs: cross-reference realtime bitmap to realtime rmapbt scrubber Darrick J. Wong
2020-01-01  1:18 ` [PATCH 20/21] xfs: cross-reference the realtime rmapbt Darrick J. Wong
2020-01-01  1:18 ` [PATCH 21/21] xfs: report realtime rmap btree corruption errors to the health system Darrick J. Wong

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