From: Christoph Hellwig <hch@infradead.org>
To: Naohiro Aota <naohiro.aota@wdc.com>
Cc: linux-btrfs@vger.kernel.org, David Sterba <dsterba@suse.com>,
Chris Mason <clm@fb.com>, Josef Bacik <josef@toxicpanda.com>,
Hannes Reinecke <hare@suse.com>,
linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v7 19/39] btrfs: limit bio size under max_zone_append_size
Date: Fri, 11 Sep 2020 15:17:19 +0100 [thread overview]
Message-ID: <20200911141719.GA15317@infradead.org> (raw)
In-Reply-To: <20200911123259.3782926-20-naohiro.aota@wdc.com>
On Fri, Sep 11, 2020 at 09:32:39PM +0900, Naohiro Aota wrote:
> + if (fs_info->max_zone_append_size &&
> + bio_op(bio) == REQ_OP_WRITE &&
> + bio->bi_iter.bi_size + size > fs_info->max_zone_append_size)
> + can_merge = false;
> +
> if (prev_bio_flags != bio_flags || !contig || !can_merge ||
> force_bio_submit ||
> bio_add_page(bio, page, page_size, pg_offset) < page_size) {
For zoned devices you need to use bio_add_hw_page instead of so that all
the hardware restrictions are applied. bio_add_hw_page asso gets the
lenght limited passed as the last parameter so we won't need a separate
check.
next prev parent reply other threads:[~2020-09-11 17:20 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-11 12:32 [PATCH v7 00/39] btrfs: zoned block device support Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 01/39] btrfs: introduce ZONED feature flag Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 02/39] btrfs: Get zone information of zoned block devices Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 03/39] btrfs: Check and enable ZONED mode Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 04/39] btrfs: introduce max_zone_append_size Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 05/39] btrfs: disallow space_cache in ZONED mode Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 06/39] btrfs: disallow NODATACOW " Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 07/39] btrfs: disable fallocate " Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 08/39] btrfs: disallow mixed-bg " Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 09/39] btrfs: disallow inode_cache " Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 10/39] btrfs: implement log-structured superblock for " Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 11/39] btrfs: implement zoned chunk allocator Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 12/39] btrfs: verify device extent is aligned to zone Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 13/39] btrfs: load zone's alloction offset Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 14/39] btrfs: emulate write pointer for conventional zones Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 15/39] btrfs: track unusable bytes for zones Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 16/39] btrfs: do sequential extent allocation in ZONED mode Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 17/39] btrfs: reset zones of unused block groups Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 18/39] btrfs: redirty released extent buffers in ZONED mode Naohiro Aota
2020-09-14 11:48 ` Johannes Thumshirn
2020-09-11 12:32 ` [PATCH v7 19/39] btrfs: limit bio size under max_zone_append_size Naohiro Aota
2020-09-11 14:17 ` Christoph Hellwig [this message]
2020-09-12 4:14 ` Naohiro Aota
2020-09-12 5:30 ` Christoph Hellwig
2020-09-17 5:32 ` Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 20/39] btrfs: limit ordered extent size to max_zone_append_size Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 21/39] btrfs: extend btrfs_rmap_block for specifying a device Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 22/39] btrfs: use ZONE_APPEND write for ZONED btrfs Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 23/39] btrfs: handle REQ_OP_ZONE_APPEND as writing Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 24/39] btrfs: enable zone append writing for direct IO Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 25/39] btrfs: introduce dedicated data write path for ZONED mode Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 26/39] btrfs: serialize meta IOs on " Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 27/39] btrfs: wait existing extents before truncating Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 28/39] btrfs: avoid async metadata checksum on ZONED mode Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 29/39] btrfs: mark block groups to copy for device-replace Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 30/39] btrfs: implement cloning for ZONED device-replace Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 31/39] btrfs: implement copying " Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 32/39] btrfs: support dev-replace in ZONED mode Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 33/39] btrfs: enable relocation " Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 34/39] btrfs: relocate block group to repair IO failure in ZONED Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 35/39] btrfs: split alloc_log_tree() Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 36/39] btrfs: extend zoned allocator to use dedicated tree-log block group Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 37/39] btrfs: serialize log transaction on ZONED mode Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 38/39] btrfs: reorder log node allocation Naohiro Aota
2020-09-11 12:32 ` [PATCH v7 39/39] btrfs: enable to mount ZONED incompat flag Naohiro Aota
2020-09-15 8:09 ` [PATCH v7 00/39] btrfs: zoned block device support David Sterba
2020-09-16 17:42 ` Johannes Thumshirn
2020-09-16 19:46 ` David Sterba
2020-09-16 19:50 ` Johannes Thumshirn
2020-09-17 5:40 ` Naohiro Aota
2020-09-17 7:14 ` Johannes Thumshirn
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