From: Naohiro Aota <naohiro.aota@wdc.com>
To: linux-btrfs@vger.kernel.org, dsterba@suse.com
Cc: hare@suse.com, linux-fsdevel@vger.kernel.org,
Johannes Thumshirn <johannes.thumshirn@wdc.com>,
Christoph Hellwig <hch@lst.de>,
Josef Bacik <josef@toxicpanda.com>,
Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>,
Jens Axboe <axboe@kernel.dk>
Subject: [PATCH v15 01/42] block: add bio_add_zone_append_page
Date: Thu, 4 Feb 2021 19:21:40 +0900 [thread overview]
Message-ID: <b36444df121d46c6d9638a8ae8eacecaa845fbe4.1612434091.git.naohiro.aota@wdc.com> (raw)
In-Reply-To: <cover.1612433345.git.naohiro.aota@wdc.com>
From: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Add bio_add_zone_append_page(), a wrapper around bio_add_hw_page() which
is intended to be used by file systems that directly add pages to a bio
instead of using bio_iov_iter_get_pages().
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
---
block/bio.c | 33 +++++++++++++++++++++++++++++++++
include/linux/bio.h | 2 ++
2 files changed, 35 insertions(+)
diff --git a/block/bio.c b/block/bio.c
index 1f2cc1fbe283..2f21d2958b60 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -851,6 +851,39 @@ int bio_add_pc_page(struct request_queue *q, struct bio *bio,
}
EXPORT_SYMBOL(bio_add_pc_page);
+/**
+ * bio_add_zone_append_page - attempt to add page to zone-append bio
+ * @bio: destination bio
+ * @page: page to add
+ * @len: vec entry length
+ * @offset: vec entry offset
+ *
+ * Attempt to add a page to the bio_vec maplist of a bio that will be submitted
+ * for a zone-append request. This can fail for a number of reasons, such as the
+ * bio being full or the target block device is not a zoned block device or
+ * other limitations of the target block device. The target block device must
+ * allow bio's up to PAGE_SIZE, so it is always possible to add a single page
+ * to an empty bio.
+ *
+ * Returns: number of bytes added to the bio, or 0 in case of a failure.
+ */
+int bio_add_zone_append_page(struct bio *bio, struct page *page,
+ unsigned int len, unsigned int offset)
+{
+ struct request_queue *q = bio->bi_disk->queue;
+ bool same_page = false;
+
+ if (WARN_ON_ONCE(bio_op(bio) != REQ_OP_ZONE_APPEND))
+ return 0;
+
+ if (WARN_ON_ONCE(!blk_queue_is_zoned(q)))
+ return 0;
+
+ return bio_add_hw_page(q, bio, page, len, offset,
+ queue_max_zone_append_sectors(q), &same_page);
+}
+EXPORT_SYMBOL_GPL(bio_add_zone_append_page);
+
/**
* __bio_try_merge_page - try appending data to an existing bvec.
* @bio: destination bio
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 1edda614f7ce..de62911473bb 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -455,6 +455,8 @@ void bio_chain(struct bio *, struct bio *);
extern int bio_add_page(struct bio *, struct page *, unsigned int,unsigned int);
extern int bio_add_pc_page(struct request_queue *, struct bio *, struct page *,
unsigned int, unsigned int);
+int bio_add_zone_append_page(struct bio *bio, struct page *page,
+ unsigned int len, unsigned int offset);
bool __bio_try_merge_page(struct bio *bio, struct page *page,
unsigned int len, unsigned int off, bool *same_page);
void __bio_add_page(struct bio *bio, struct page *page,
--
2.30.0
next prev parent reply other threads:[~2021-02-04 10:24 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-04 10:21 [PATCH v15 00/42] btrfs: zoned block device support Naohiro Aota
2021-02-04 10:21 ` Naohiro Aota [this message]
2021-02-04 10:21 ` [PATCH v15 02/42] iomap: support REQ_OP_ZONE_APPEND Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 03/42] btrfs: zoned: defer loading zone info after opening trees Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 04/42] btrfs: zoned: use regular super block location on zone emulation Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 05/42] btrfs: release path before calling to btrfs_load_block_group_zone_info Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 06/42] btrfs: zoned: do not load fs_info::zoned from incompat flag Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 07/42] btrfs: zoned: disallow fitrim on zoned filesystems Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 08/42] btrfs: zoned: allow zoned filesystems on non-zoned block devices Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 09/42] btrfs: zoned: implement zoned chunk allocator Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 10/42] btrfs: zoned: verify device extent is aligned to zone Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 11/42] btrfs: zoned: load zone's allocation offset Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 12/42] btrfs: zoned: calculate allocation offset for conventional zones Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 13/42] btrfs: zoned: track unusable bytes for zones Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 14/42] btrfs: zoned: implement sequential extent allocation Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 15/42] btrfs: zoned: redirty released extent buffers Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 16/42] btrfs: zoned: advance allocation pointer after tree log node Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 17/42] btrfs: zoned: reset zones of unused block groups Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 18/42] btrfs: factor out helper adding a page to bio Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 19/42] btrfs: zoned: use bio_add_zone_append_page Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 20/42] btrfs: zoned: handle REQ_OP_ZONE_APPEND as writing Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 21/42] btrfs: zoned: split ordered extent when bio is sent Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 22/42] btrfs: zoned: check if bio spans across an ordered extent Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 23/42] btrfs: extend btrfs_rmap_block for specifying a device Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 24/42] btrfs: zoned: cache if block-group is on a sequential zone Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 25/42] btrfs: save irq flags when looking up an ordered extent Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 26/42] btrfs: zoned: use ZONE_APPEND write for zoned btrfs Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 27/42] btrfs: zoned: enable zone append writing for direct IO Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 28/42] btrfs: zoned: introduce dedicated data write path for zoned filesystems Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 29/42] btrfs: zoned: serialize metadata IO Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 30/42] btrfs: zoned: wait for existing extents before truncating Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 31/42] btrfs: zoned: do not use async metadata checksum on zoned filesystems Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 32/42] btrfs: zoned: mark block groups to copy for device-replace Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 33/42] btrfs: zoned: implement cloning for zoned device-replace Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 34/42] btrfs: zoned: implement copying " Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 35/42] btrfs: zoned: support dev-replace in zoned filesystems Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 36/42] btrfs: zoned: enable relocation on a zoned filesystem Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 37/42] btrfs: zoned: relocate block group to repair IO failure in zoned filesystems Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 38/42] btrfs: split alloc_log_tree() Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 39/42] btrfs: zoned: extend zoned allocator to use dedicated tree-log block group Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 40/42] btrfs: zoned: serialize log transaction on zoned filesystems Naohiro Aota
2021-02-04 11:50 ` Filipe Manana
2021-02-05 7:21 ` Naohiro Aota
2021-02-05 9:15 ` Naohiro Aota
2021-02-05 11:21 ` Filipe Manana
2021-02-09 1:49 ` David Sterba
2021-02-04 10:22 ` [PATCH v15 41/42] btrfs: zoned: reorder log node allocation on zoned filesystem Naohiro Aota
2021-02-04 11:57 ` Filipe Manana
2021-02-04 14:54 ` Johannes Thumshirn
2021-02-04 15:48 ` David Sterba
2021-02-04 15:51 ` Johannes Thumshirn
2021-02-04 10:22 ` [PATCH v15 42/42] btrfs: zoned: enable to mount ZONED incompat flag Naohiro Aota
2021-02-05 9:26 ` [PATCH v15 43/43] btrfs: zoned: deal with holes writing out tree-log pages Naohiro Aota
2021-02-05 11:49 ` Filipe Manana
2021-02-05 12:55 ` Naohiro Aota
2021-02-05 13:07 ` Filipe Manana
2021-02-05 14:19 ` Filipe Manana
2021-02-05 14:46 ` Naohiro Aota
2021-02-05 14:58 ` [PATCH v15.1 " Naohiro Aota
2021-02-05 16:25 ` Filipe Manana
2021-02-09 1:55 ` David Sterba
2021-02-10 19:58 ` [PATCH v15 00/42] btrfs: zoned block device support David Sterba
2021-02-11 9:58 ` Johannes Thumshirn
2021-02-11 15:19 ` David Sterba
2021-02-11 15:26 ` Johannes Thumshirn
2021-02-11 15:46 ` David Sterba
2021-02-15 16:58 ` Johannes Thumshirn
2021-02-15 17:02 ` David Sterba
2021-02-16 4:33 ` Naohiro Aota
2021-02-16 11:46 ` David Sterba
2021-02-22 7:50 ` Naohiro Aota
2021-02-22 16:00 ` 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=b36444df121d46c6d9638a8ae8eacecaa845fbe4.1612434091.git.naohiro.aota@wdc.com \
--to=naohiro.aota@wdc.com \
--cc=axboe@kernel.dk \
--cc=chaitanya.kulkarni@wdc.com \
--cc=dsterba@suse.com \
--cc=hare@suse.com \
--cc=hch@lst.de \
--cc=johannes.thumshirn@wdc.com \
--cc=josef@toxicpanda.com \
--cc=linux-btrfs@vger.kernel.org \
--cc=linux-fsdevel@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).