From: Qu Wenruo <wqu@suse.com>
To: linux-btrfs@vger.kernel.org
Subject: [PATCH v3 0/3] btrfs: btrfs_bio and btrfs_io_bio rename
Date: Wed, 15 Sep 2021 15:17:15 +0800 [thread overview]
Message-ID: <20210915071718.59418-1-wqu@suse.com> (raw)
The branch can be fetched from github, and is the preferred way to grab
the code, as this patchset changed quite a lot of code.
https://github.com/adam900710/linux/tree/chunk_refactor
There are two structure, btrfs_io_bio and btrfs_bio, which have very
similar names but completely different meanings.
Btrfs_io_bio mostly works at logical bytenr layer (its
bio->bi_iter.bi_sector points to btrfs logical bytenr), and just
contains extra info like csum and mirror_num.
And btrfs_io_bio is in fact the most utilized bio, as all data/metadata
IO is using btrfs_io_bio.
While btrfs_bio is completely a helper structure for mirrored IO
submission (utilized by SINGLE/DUP/RAID1/RAID10), and contains RAID56
maps for RAID56 (it doesn't utilize this structure for IO submission
tracking).
Such naming is completely anti-human.
So this patchset will do the following renaming:
- btrfs_bio -> btrfs_io_context
Since it's not really used by all bios (only mirrored profiles utilize
it), and it contains extra info for RAID56, it's not proper to name it
with _bio suffix.
Later we can integrate btrfs_io_context pointer into the new
btrfs_bio.
- btrfs_io_bio -> btrfs_logical_bio
It is intentional not to reuse "btrfs_bio", which could cause
confusion for later backport.
Changelog:
v2:
- Rename btrfs_bio to btrfs_io_context (bioc)
- Rename btrfs_io_bio to btrfs_bio
Both suggested by Nikolay
v3:
- Fixes whiespace problems
Caused by "dwi" vim commands
- Update several modified comments
- Rename btrfs_io_bio to btrfs_logical_bio
To avoid backport confusion.
Qu Wenruo (3):
btrfs: rename btrfs_bio to btrfs_io_context
btrfs: remove btrfs_bio_alloc() helper
btrfs: rename struct btrfs_io_bio to btrfs_logical_bio
fs/btrfs/check-integrity.c | 4 +-
fs/btrfs/compression.c | 20 +--
fs/btrfs/ctree.h | 6 +-
fs/btrfs/disk-io.c | 2 +-
fs/btrfs/disk-io.h | 2 +-
fs/btrfs/extent-tree.c | 19 ++-
fs/btrfs/extent_io.c | 116 ++++++++--------
fs/btrfs/extent_io.h | 8 +-
fs/btrfs/extent_map.c | 4 +-
fs/btrfs/file-item.c | 12 +-
fs/btrfs/inode.c | 50 +++----
fs/btrfs/raid56.c | 135 +++++++++---------
fs/btrfs/raid56.h | 8 +-
fs/btrfs/reada.c | 26 ++--
fs/btrfs/scrub.c | 130 +++++++++---------
fs/btrfs/volumes.c | 272 ++++++++++++++++++-------------------
fs/btrfs/volumes.h | 63 +++++----
fs/btrfs/zoned.c | 16 +--
18 files changed, 455 insertions(+), 438 deletions(-)
--
2.33.0
next reply other threads:[~2021-09-15 7:17 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-15 7:17 Qu Wenruo [this message]
2021-09-15 7:17 ` [PATCH v3 1/3] btrfs: rename btrfs_bio to btrfs_io_context Qu Wenruo
2021-09-17 11:19 ` David Sterba
2021-09-17 11:24 ` Qu Wenruo
2021-09-17 11:27 ` Qu Wenruo
2021-09-17 11:33 ` David Sterba
2021-09-15 7:17 ` [PATCH v3 2/3] btrfs: remove btrfs_bio_alloc() helper Qu Wenruo
2021-09-17 12:27 ` Nikolay Borisov
2021-09-17 12:33 ` Qu Wenruo
2021-09-17 12:34 ` Nikolay Borisov
2021-09-17 12:43 ` David Sterba
2021-09-17 12:49 ` Nikolay Borisov
2021-09-20 10:33 ` Qu Wenruo
2021-09-20 12:41 ` David Sterba
2021-09-20 12:42 ` Qu Wenruo
2021-09-23 5:57 ` Qu Wenruo
2021-09-15 7:17 ` [PATCH v3 3/3] btrfs: rename struct btrfs_io_bio to btrfs_logical_bio Qu Wenruo
2021-09-17 11:39 ` David Sterba
2021-09-20 7:04 ` Nikolay Borisov
2021-09-20 12:23 ` David Sterba
2021-09-20 13:10 ` David Sterba
2021-09-17 11:39 ` [PATCH v3 0/3] btrfs: btrfs_bio and btrfs_io_bio rename David Sterba
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=20210915071718.59418-1-wqu@suse.com \
--to=wqu@suse.com \
--cc=linux-btrfs@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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.