linux-fsdevel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Johannes Thumshirn <Johannes.Thumshirn@wdc.com>
To: Josef Bacik <josef@toxicpanda.com>,
	Naohiro Aota <Naohiro.Aota@wdc.com>,
	"linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>,
	"dsterba@suse.com" <dsterba@suse.com>
Cc: "hare@suse.com" <hare@suse.com>,
	"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
	Jens Axboe <axboe@kernel.dk>,
	"hch@infradead.org" <hch@infradead.org>,
	"Darrick J. Wong" <darrick.wong@oracle.com>,
	kernel test robot <lkp@intel.com>
Subject: Re: [PATCH v13 22/42] btrfs: split ordered extent when bio is sent
Date: Mon, 25 Jan 2021 09:02:55 +0000	[thread overview]
Message-ID: <SN4PR0401MB35987DF6B8CF50F0AD68C6C99BBD9@SN4PR0401MB3598.namprd04.prod.outlook.com> (raw)
In-Reply-To: e265540c-9613-9473-f7e6-0f55d455b18e@toxicpanda.com

On 22/01/2021 16:24, Josef Bacik wrote:
>> +	em_new = create_io_em(inode, em->start + pre, len,
>> +			      em->start + pre, em->block_start + pre, len,
>> +			      len, len, BTRFS_COMPRESS_NONE,
>> +			      BTRFS_ORDERED_REGULAR);
> This bit confuses me, the io_em is just so we have a mapping to an area that's 
> being written to, and this is created at ordered extent time.  I get why we need 
> to split up the ordered extent, but the existing io_em should be fine, right? 

unpin_extent_cache() needs em->start != start or it'll WARN there, I'll add a comment.

  parent reply	other threads:[~2021-01-26 20:16 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-22  6:21 [PATCH v13 00/42] btrfs: zoned block device support Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 01/42] block: add bio_add_zone_append_page Naohiro Aota
2021-01-23  2:50   ` Chaitanya Kulkarni
2021-01-23  3:08   ` Chaitanya Kulkarni
2021-01-25 17:31   ` Johannes Thumshirn
2021-01-22  6:21 ` [PATCH v13 02/42] iomap: support REQ_OP_ZONE_APPEND Naohiro Aota
2021-01-23  2:56   ` Chaitanya Kulkarni
2021-01-22  6:21 ` [PATCH v13 03/42] btrfs: defer loading zone info after opening trees Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 04/42] btrfs: use regular SB location on emulated zoned mode Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 05/42] btrfs: release path before calling into btrfs_load_block_group_zone_info Naohiro Aota
2021-01-22 14:57   ` Josef Bacik
2021-01-22  6:21 ` [PATCH v13 06/42] btrfs: do not load fs_info->zoned from incompat flag Naohiro Aota
2021-01-22 14:58   ` Josef Bacik
2021-01-22  6:21 ` [PATCH v13 07/42] btrfs: disallow fitrim in ZONED mode Naohiro Aota
2021-01-22 14:59   ` Josef Bacik
2021-01-22  6:21 ` [PATCH v13 08/42] btrfs: allow zoned mode on non-zoned block devices Naohiro Aota
2021-01-22 15:03   ` Josef Bacik
2021-01-22  6:21 ` [PATCH v13 09/42] btrfs: implement zoned chunk allocator Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 10/42] btrfs: verify device extent is aligned to zone Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 11/42] btrfs: load zone's allocation offset Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 12/42] btrfs: calculate allocation offset for conventional zones Naohiro Aota
2021-01-22 15:07   ` Josef Bacik
2021-01-22  6:21 ` [PATCH v13 13/42] btrfs: track unusable bytes for zones Naohiro Aota
2021-01-22 15:11   ` Josef Bacik
2021-01-25 10:37     ` Johannes Thumshirn
2021-01-25 12:08       ` Johannes Thumshirn
2021-01-22  6:21 ` [PATCH v13 14/42] btrfs: do sequential extent allocation in ZONED mode Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 15/42] btrfs: redirty released extent buffers " Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 16/42] btrfs: advance allocation pointer after tree log node Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 17/42] btrfs: enable to mount ZONED incompat flag Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 18/42] btrfs: reset zones of unused block groups Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 19/42] btrfs: extract page adding function Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 20/42] btrfs: use bio_add_zone_append_page for zoned btrfs Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 21/42] btrfs: handle REQ_OP_ZONE_APPEND as writing Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 22/42] btrfs: split ordered extent when bio is sent Naohiro Aota
2021-01-22 15:22   ` Josef Bacik
2021-01-25  8:56     ` Johannes Thumshirn
2021-01-25  9:02     ` Johannes Thumshirn [this message]
2021-01-22  6:21 ` [PATCH v13 23/42] btrfs: check if bio spans across an ordered extent Naohiro Aota
2021-01-22 15:23   ` Josef Bacik
2021-01-22  6:21 ` [PATCH v13 24/42] btrfs: extend btrfs_rmap_block for specifying a device Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 25/42] btrfs: cache if block-group is on a sequential zone Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 26/42] btrfs: save irq flags when looking up an ordered extent Naohiro Aota
2021-01-22 15:24   ` Josef Bacik
2021-01-22  6:21 ` [PATCH v13 27/42] btrfs: use ZONE_APPEND write for ZONED btrfs Naohiro Aota
2021-01-22 15:29   ` Josef Bacik
2021-01-22  6:21 ` [PATCH v13 28/42] btrfs: enable zone append writing for direct IO Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 29/42] btrfs: introduce dedicated data write path for ZONED mode Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 30/42] btrfs: serialize meta IOs on " Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 31/42] btrfs: wait existing extents before truncating Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 32/42] btrfs: avoid async metadata checksum on ZONED mode Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 33/42] btrfs: mark block groups to copy for device-replace Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 34/42] btrfs: implement cloning for ZONED device-replace Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 35/42] btrfs: implement copying " Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 36/42] btrfs: support dev-replace in ZONED mode Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 37/42] btrfs: enable relocation " Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 38/42] btrfs: relocate block group to repair IO failure in ZONED Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 39/42] btrfs: split alloc_log_tree() Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 40/42] btrfs: extend zoned allocator to use dedicated tree-log block group Naohiro Aota
2021-01-22  6:21 ` [PATCH v13 41/42] btrfs: serialize log transaction on ZONED mode Naohiro Aota
2021-01-22 15:37   ` Josef Bacik
2021-01-22  6:21 ` [PATCH v13 42/42] btrfs: reorder log node allocation Naohiro Aota

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=SN4PR0401MB35987DF6B8CF50F0AD68C6C99BBD9@SN4PR0401MB3598.namprd04.prod.outlook.com \
    --to=johannes.thumshirn@wdc.com \
    --cc=Naohiro.Aota@wdc.com \
    --cc=axboe@kernel.dk \
    --cc=darrick.wong@oracle.com \
    --cc=dsterba@suse.com \
    --cc=hare@suse.com \
    --cc=hch@infradead.org \
    --cc=josef@toxicpanda.com \
    --cc=linux-btrfs@vger.kernel.org \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=lkp@intel.com \
    /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).