From: Naohiro Aota <naohiro.aota@wdc.com>
To: linux-btrfs@vger.kernel.org, David Sterba <dsterba@suse.com>
Cc: Chris Mason <clm@fb.com>, Josef Bacik <josef@toxicpanda.com>,
Hannes Reinecke <hare@suse.com>,
linux-fsdevel@vger.kernel.org,
Naohiro Aota <naohiro.aota@wdc.com>
Subject: [PATCH v7 04/39] btrfs: introduce max_zone_append_size
Date: Fri, 11 Sep 2020 21:32:24 +0900 [thread overview]
Message-ID: <20200911123259.3782926-5-naohiro.aota@wdc.com> (raw)
In-Reply-To: <20200911123259.3782926-1-naohiro.aota@wdc.com>
Zone append write command has a maximum IO size restriction it accepts.
Introduce max_zone_append_size to zone_info and fs_into to track the value.
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
---
fs/btrfs/ctree.h | 2 ++
fs/btrfs/zoned.c | 17 +++++++++++++++--
fs/btrfs/zoned.h | 1 +
3 files changed, 18 insertions(+), 2 deletions(-)
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index f5ed8f5519dd..54c22ad0d633 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -582,6 +582,8 @@ struct btrfs_fs_info {
/* Zone size when in ZONED mode */
u64 zone_size;
+ /* max size to emit ZONE_APPEND write command */
+ u64 max_zone_append_size;
/* the log root tree is a directory of all the other log roots */
struct btrfs_root *log_root_tree;
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index 7509888b457a..2e12fce81abf 100644
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -53,6 +53,7 @@ int btrfs_get_dev_zone_info(struct btrfs_device *device)
{
struct btrfs_zoned_device_info *zone_info = NULL;
struct block_device *bdev = device->bdev;
+ struct request_queue *q = bdev_get_queue(bdev);
sector_t nr_sectors = bdev->bd_part->nr_sects;
sector_t sector = 0;
struct blk_zone *zones = NULL;
@@ -73,6 +74,8 @@ int btrfs_get_dev_zone_info(struct btrfs_device *device)
ASSERT(is_power_of_2(zone_sectors));
zone_info->zone_size = (u64)zone_sectors << SECTOR_SHIFT;
zone_info->zone_size_shift = ilog2(zone_info->zone_size);
+ zone_info->max_zone_append_size =
+ (u64)queue_max_zone_append_sectors(q) << SECTOR_SHIFT;
zone_info->nr_zones = nr_sectors >> ilog2(bdev_zone_sectors(bdev));
if (!IS_ALIGNED(nr_sectors, zone_sectors))
zone_info->nr_zones++;
@@ -185,6 +188,7 @@ int btrfs_check_zoned_mode(struct btrfs_fs_info *fs_info)
u64 hmzoned_devices = 0;
u64 nr_devices = 0;
u64 zone_size = 0;
+ u64 max_zone_append_size = 0;
int incompat_zoned = btrfs_fs_incompat(fs_info, ZONED);
int ret = 0;
@@ -198,15 +202,23 @@ int btrfs_check_zoned_mode(struct btrfs_fs_info *fs_info)
model = bdev_zoned_model(device->bdev);
if (model == BLK_ZONED_HM ||
(model == BLK_ZONED_HA && incompat_zoned)) {
+ struct btrfs_zoned_device_info *zone_info =
+ device->zone_info;
+
hmzoned_devices++;
if (!zone_size) {
- zone_size = device->zone_info->zone_size;
- } else if (device->zone_info->zone_size != zone_size) {
+ zone_size = zone_info->zone_size;
+ } else if (zone_info->zone_size != zone_size) {
btrfs_err(fs_info,
"Zoned block devices must have equal zone sizes");
ret = -EINVAL;
goto out;
}
+ if (!max_zone_append_size ||
+ (zone_info->max_zone_append_size &&
+ zone_info->max_zone_append_size < max_zone_append_size))
+ max_zone_append_size =
+ zone_info->max_zone_append_size;
}
nr_devices++;
}
@@ -249,6 +261,7 @@ int btrfs_check_zoned_mode(struct btrfs_fs_info *fs_info)
}
fs_info->zone_size = zone_size;
+ fs_info->max_zone_append_size = max_zone_append_size;
btrfs_info(fs_info, "ZONED mode enabled, zone size %llu B",
fs_info->zone_size);
diff --git a/fs/btrfs/zoned.h b/fs/btrfs/zoned.h
index 4341630cb756..f200b46a71fb 100644
--- a/fs/btrfs/zoned.h
+++ b/fs/btrfs/zoned.h
@@ -18,6 +18,7 @@ struct btrfs_zoned_device_info {
*/
u64 zone_size;
u8 zone_size_shift;
+ u64 max_zone_append_size;
u32 nr_zones;
unsigned long *seq_zones;
unsigned long *empty_zones;
--
2.27.0
next prev parent reply other threads:[~2020-09-11 17:45 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 ` Naohiro Aota [this message]
2020-09-11 12:32 ` [PATCH v7 05/39] btrfs: disallow space_cache in " 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
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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