From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: darrick.wong@oracle.com, bfoster@redhat.com
Cc: linux-xfs@vger.kernel.org
Subject: [PATCH v4 0/5] xfs: add inode btree blocks counters to the AGI header
Date: Tue, 01 Sep 2020 19:55:52 -0700 [thread overview]
Message-ID: <159901535219.547164.1381621861988558776.stgit@magnolia> (raw)
Hi all,
Years ago, Christoph diagnosed a problem where freeing an inode on a
totally full filesystem could fail due to finobt expansion not being
able to allocate enough blocks. He solved the problem by using the
per-AG block reservation system to ensure that there are always enough
blocks for finobt expansion, but that came at the cost of having to walk
the entire finobt at mount time. This new feature solves that
performance regression by adding inode btree block counts to the AGI
header.
v2: rebase kernel to 5.9
v3: split logical changes into separate patches
v4: support inobtcounts && !finobt properly
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=inobt-counters
xfsprogs git tree:
https://git.kernel.org/cgit/linux/kernel/git/djwong/xfsprogs-dev.git/log/?h=inobt-counters
---
fs/xfs/libxfs/xfs_ag.c | 5 +++
fs/xfs/libxfs/xfs_format.h | 21 +++++++++++-
fs/xfs/libxfs/xfs_ialloc.c | 1 +
fs/xfs/libxfs/xfs_ialloc_btree.c | 68 ++++++++++++++++++++++++++++++++++++--
fs/xfs/scrub/agheader.c | 30 +++++++++++++++++
fs/xfs/scrub/agheader_repair.c | 24 +++++++++++++
fs/xfs/xfs_ondisk.h | 2 +
fs/xfs/xfs_super.c | 4 ++
8 files changed, 148 insertions(+), 7 deletions(-)
next reply other threads:[~2020-09-02 2:55 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-02 2:55 Darrick J. Wong [this message]
2020-09-02 2:55 ` [PATCH 1/5] xfs: store inode btree block counts in AGI header Darrick J. Wong
2020-09-02 13:23 ` Brian Foster
2020-09-02 17:13 ` Darrick J. Wong
2020-09-02 2:56 ` [PATCH 2/5] xfs: use the finobt block counts to speed up mount times Darrick J. Wong
2020-09-02 2:56 ` [PATCH 3/5] xfs: support inode btree blockcounts in online scrub Darrick J. Wong
2020-09-02 2:56 ` [PATCH 4/5] xfs: support inode btree blockcounts in online repair Darrick J. Wong
2020-09-02 13:23 ` Brian Foster
2020-09-02 2:56 ` [PATCH 5/5] xfs: enable new inode btree counters feature Darrick J. Wong
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=159901535219.547164.1381621861988558776.stgit@magnolia \
--to=darrick.wong@oracle.com \
--cc=bfoster@redhat.com \
--cc=linux-xfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).