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,
Jens Axboe <axboe@kernel.dk>,
Christoph Hellwig <hch@infradead.org>,
"Darrick J. Wong" <darrick.wong@oracle.com>,
Johannes Thumshirn <johannes.thumshirn@wdc.com>,
Josef Bacik <josef@toxicpanda.com>
Subject: [PATCH v14 25/42] btrfs: cache if block-group is on a sequential zone
Date: Tue, 26 Jan 2021 11:25:03 +0900 [thread overview]
Message-ID: <bbc251e8d71f081b6f8baabd5f0a67c19b401f57.1611627788.git.naohiro.aota@wdc.com> (raw)
In-Reply-To: <cover.1611627788.git.naohiro.aota@wdc.com>
From: Johannes Thumshirn <johannes.thumshirn@wdc.com>
In zoned mode, cache if a block-group is on a sequential write only zone.
On sequential write only zones, we can use REQ_OP_ZONE_APPEND for writing
of data, therefore provide btrfs_use_zone_append() to figure out if I/O is
targeting a sequential write only zone and we can use said
REQ_OP_ZONE_APPEND for data writing.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
---
fs/btrfs/block-group.h | 2 ++
fs/btrfs/zoned.c | 29 +++++++++++++++++++++++++++++
fs/btrfs/zoned.h | 5 +++++
3 files changed, 36 insertions(+)
diff --git a/fs/btrfs/block-group.h b/fs/btrfs/block-group.h
index 9df00ada09f9..a1d96c4cfa3b 100644
--- a/fs/btrfs/block-group.h
+++ b/fs/btrfs/block-group.h
@@ -184,6 +184,8 @@ struct btrfs_block_group {
/* Record locked full stripes for RAID5/6 block group */
struct btrfs_full_stripe_locks_tree full_stripe_locks_root;
+ /* Flag indicating this block-group is placed on a sequential zone */
+ bool seq_zone;
/*
* Allocation offset for the block group to implement sequential
* allocation. This is used only with ZONED mode enabled.
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index db6cb0070220..abe6b415de98 100644
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -1103,6 +1103,9 @@ int btrfs_load_block_group_zone_info(struct btrfs_block_group *cache, bool new)
}
}
+ if (num_sequential > 0)
+ cache->seq_zone = true;
+
if (num_conventional > 0) {
/*
* Avoid calling calculate_alloc_pointer() for new BG. It
@@ -1223,3 +1226,29 @@ void btrfs_free_redirty_list(struct btrfs_transaction *trans)
}
spin_unlock(&trans->releasing_ebs_lock);
}
+
+bool btrfs_use_zone_append(struct btrfs_inode *inode, struct extent_map *em)
+{
+ struct btrfs_fs_info *fs_info = inode->root->fs_info;
+ struct btrfs_block_group *cache;
+ bool ret = false;
+
+ if (!btrfs_is_zoned(fs_info))
+ return false;
+
+ if (!fs_info->max_zone_append_size)
+ return false;
+
+ if (!is_data_inode(&inode->vfs_inode))
+ return false;
+
+ cache = btrfs_lookup_block_group(fs_info, em->block_start);
+ ASSERT(cache);
+ if (!cache)
+ return false;
+
+ ret = cache->seq_zone;
+ btrfs_put_block_group(cache);
+
+ return ret;
+}
diff --git a/fs/btrfs/zoned.h b/fs/btrfs/zoned.h
index 331951978487..92888eb86055 100644
--- a/fs/btrfs/zoned.h
+++ b/fs/btrfs/zoned.h
@@ -46,6 +46,7 @@ void btrfs_calc_zone_unusable(struct btrfs_block_group *cache);
void btrfs_redirty_list_add(struct btrfs_transaction *trans,
struct extent_buffer *eb);
void btrfs_free_redirty_list(struct btrfs_transaction *trans);
+bool btrfs_use_zone_append(struct btrfs_inode *inode, struct extent_map *em);
#else /* CONFIG_BLK_DEV_ZONED */
static inline int btrfs_get_dev_zone(struct btrfs_device *device, u64 pos,
struct blk_zone *zone)
@@ -134,6 +135,10 @@ static inline void btrfs_redirty_list_add(struct btrfs_transaction *trans,
struct extent_buffer *eb) { }
static inline void btrfs_free_redirty_list(struct btrfs_transaction *trans) { }
+bool btrfs_use_zone_append(struct btrfs_inode *inode, struct extent_map *em)
+{
+ return false;
+}
#endif
static inline bool btrfs_dev_is_sequential(struct btrfs_device *device, u64 pos)
--
2.27.0
next prev parent reply other threads:[~2021-01-26 5:46 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-26 2:24 [PATCH v14 00/42] btrfs: zoned block device support Naohiro Aota
2021-01-26 2:24 ` [PATCH v14 01/42] block: add bio_add_zone_append_page Naohiro Aota
2021-01-26 16:08 ` Jens Axboe
2021-01-26 2:24 ` [PATCH v14 02/42] iomap: support REQ_OP_ZONE_APPEND Naohiro Aota
2021-01-26 2:24 ` [PATCH v14 03/42] btrfs: defer loading zone info after opening trees Naohiro Aota
2021-01-30 22:09 ` Anand Jain
2021-01-26 2:24 ` [PATCH v14 04/42] btrfs: use regular SB location on emulated zoned mode Naohiro Aota
2021-01-30 22:28 ` Anand Jain
2021-01-26 2:24 ` [PATCH v14 05/42] btrfs: release path before calling into btrfs_load_block_group_zone_info Naohiro Aota
2021-01-30 23:21 ` Anand Jain
2021-01-26 2:24 ` [PATCH v14 06/42] btrfs: do not load fs_info->zoned from incompat flag Naohiro Aota
2021-01-30 23:40 ` Anand Jain
2021-01-26 2:24 ` [PATCH v14 07/42] btrfs: disallow fitrim in ZONED mode Naohiro Aota
2021-01-30 23:44 ` Anand Jain
2021-01-26 2:24 ` [PATCH v14 08/42] btrfs: allow zoned mode on non-zoned block devices Naohiro Aota
2021-01-31 1:17 ` Anand Jain
2021-02-01 11:06 ` Johannes Thumshirn
2021-02-02 1:49 ` Anand Jain
2021-01-26 2:24 ` [PATCH v14 09/42] btrfs: implement zoned chunk allocator Naohiro Aota
2021-01-26 2:24 ` [PATCH v14 10/42] btrfs: verify device extent is aligned to zone Naohiro Aota
2021-01-26 2:24 ` [PATCH v14 11/42] btrfs: load zone's allocation offset Naohiro Aota
2021-01-26 2:24 ` [PATCH v14 12/42] btrfs: calculate allocation offset for conventional zones Naohiro Aota
2021-01-27 18:03 ` Josef Bacik
2021-02-03 5:19 ` Anand Jain
2021-02-03 6:10 ` Damien Le Moal
2021-02-03 6:56 ` Anand Jain
2021-02-03 7:10 ` Damien Le Moal
2021-01-26 2:24 ` [PATCH v14 13/42] btrfs: track unusable bytes for zones Naohiro Aota
2021-01-27 18:06 ` Josef Bacik
2021-01-26 2:24 ` [PATCH v14 14/42] btrfs: do sequential extent allocation in ZONED mode Naohiro Aota
2021-01-26 2:24 ` [PATCH v14 15/42] btrfs: redirty released extent buffers " Naohiro Aota
2021-01-26 2:24 ` [PATCH v14 16/42] btrfs: advance allocation pointer after tree log node Naohiro Aota
2021-01-26 2:24 ` [PATCH v14 17/42] btrfs: enable to mount ZONED incompat flag Naohiro Aota
2021-01-31 12:21 ` Anand Jain
2021-01-26 2:24 ` [PATCH v14 18/42] btrfs: reset zones of unused block groups Naohiro Aota
2021-01-26 2:24 ` [PATCH v14 19/42] btrfs: extract page adding function Naohiro Aota
2021-01-26 2:24 ` [PATCH v14 20/42] btrfs: use bio_add_zone_append_page for zoned btrfs Naohiro Aota
2021-01-26 2:24 ` [PATCH v14 21/42] btrfs: handle REQ_OP_ZONE_APPEND as writing Naohiro Aota
2021-01-26 2:25 ` [PATCH v14 22/42] btrfs: split ordered extent when bio is sent Naohiro Aota
2021-01-27 19:00 ` Josef Bacik
2021-01-26 2:25 ` [PATCH v14 23/42] btrfs: check if bio spans across an ordered extent Naohiro Aota
2021-01-26 2:25 ` [PATCH v14 24/42] btrfs: extend btrfs_rmap_block for specifying a device Naohiro Aota
2021-01-26 2:25 ` Naohiro Aota [this message]
2021-01-26 2:25 ` [PATCH v14 26/42] btrfs: save irq flags when looking up an ordered extent Naohiro Aota
2021-01-26 2:25 ` [PATCH v14 27/42] btrfs: use ZONE_APPEND write for ZONED btrfs Naohiro Aota
2021-01-26 2:25 ` [PATCH v14 28/42] btrfs: enable zone append writing for direct IO Naohiro Aota
2021-01-26 2:25 ` [PATCH v14 29/42] btrfs: introduce dedicated data write path for ZONED mode Naohiro Aota
2021-02-02 15:00 ` David Sterba
2021-02-04 8:25 ` Naohiro Aota
2021-01-26 2:25 ` [PATCH v14 30/42] btrfs: serialize meta IOs on " Naohiro Aota
2021-01-26 2:25 ` [PATCH v14 31/42] btrfs: wait existing extents before truncating Naohiro Aota
2021-01-26 2:25 ` [PATCH v14 32/42] btrfs: avoid async metadata checksum on ZONED mode Naohiro Aota
2021-02-02 14:54 ` David Sterba
2021-02-02 16:50 ` Johannes Thumshirn
2021-02-02 19:28 ` David Sterba
2021-01-26 2:25 ` [PATCH v14 33/42] btrfs: mark block groups to copy for device-replace Naohiro Aota
2021-01-26 2:25 ` [PATCH v14 34/42] btrfs: implement cloning for ZONED device-replace Naohiro Aota
2021-01-26 2:25 ` [PATCH v14 35/42] btrfs: implement copying " Naohiro Aota
2021-01-26 2:25 ` [PATCH v14 36/42] btrfs: support dev-replace in ZONED mode Naohiro Aota
2021-01-26 2:25 ` [PATCH v14 37/42] btrfs: enable relocation " Naohiro Aota
2021-01-26 2:25 ` [PATCH v14 38/42] btrfs: relocate block group to repair IO failure in ZONED Naohiro Aota
2021-01-26 2:25 ` [PATCH v14 39/42] btrfs: split alloc_log_tree() Naohiro Aota
2021-01-26 2:25 ` [PATCH v14 40/42] btrfs: extend zoned allocator to use dedicated tree-log block group Naohiro Aota
2021-01-26 2:25 ` [PATCH v14 41/42] btrfs: serialize log transaction on ZONED mode Naohiro Aota
2021-01-27 19:01 ` Josef Bacik
2021-02-01 15:48 ` Filipe Manana
2021-01-26 2:25 ` [PATCH v14 42/42] btrfs: reorder log node allocation Naohiro Aota
2021-02-01 15:48 ` Filipe Manana
2021-02-01 15:54 ` Johannes Thumshirn
2021-01-29 7:56 ` [PATCH v14 00/42] btrfs: zoned block device support Johannes Thumshirn
2021-01-29 20:44 ` David Sterba
2021-01-30 11:30 ` Johannes Thumshirn
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