diff mbox series

[v2,2/4] btrfs: zoned: make zone finishing multi stripe capable

Message ID 33664c5883e87e2c989e1a87ae600ea44a8f37a1.1643204608.git.johannes.thumshirn@wdc.com (mailing list archive)
State New, archived
Headers show
Series btrfs: implement metadata DUP for zoned mode | expand

Commit Message

Johannes Thumshirn Jan. 26, 2022, 1:46 p.m. UTC
Currently finishing of a zone only works if the block group isn't
spanning more than one zone.

This limitation is purely artificial and can be easily expanded to block
groups being places across multiple zones.

This is a preparation for allowing DUP and later more complex block-group
profiles on zoned btrfs.

Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
---
 fs/btrfs/zoned.c | 46 ++++++++++++++++++++++++----------------------
 1 file changed, 24 insertions(+), 22 deletions(-)
diff mbox series

Patch

diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index e3d198405d39..987d2456d398 100644
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -1845,19 +1845,12 @@  int btrfs_zone_finish(struct btrfs_block_group *block_group)
 	struct btrfs_device *device;
 	u64 physical;
 	int ret = 0;
+	int i;
 
 	if (!btrfs_is_zoned(fs_info))
 		return 0;
 
 	map = block_group->physical_map;
-	/* Currently support SINGLE profile only */
-	ASSERT(map->num_stripes == 1);
-
-	device = map->stripes[0].dev;
-	physical = map->stripes[0].physical;
-
-	if (device->zone_info->max_active_zones == 0)
-		return 0;
 
 	spin_lock(&block_group->lock);
 	if (!block_group->zone_is_active) {
@@ -1909,25 +1902,34 @@  int btrfs_zone_finish(struct btrfs_block_group *block_group)
 	btrfs_clear_data_reloc_bg(block_group);
 	spin_unlock(&block_group->lock);
 
-	ret = blkdev_zone_mgmt(device->bdev, REQ_OP_ZONE_FINISH,
-			       physical >> SECTOR_SHIFT,
-			       device->zone_info->zone_size >> SECTOR_SHIFT,
-			       GFP_NOFS);
-	btrfs_dec_block_group_ro(block_group);
+	for (i = 0; i < map->num_stripes; i++) {
+		device = map->stripes[i].dev;
+		physical = map->stripes[i].physical;
 
-	if (!ret) {
-		btrfs_dev_clear_active_zone(device, physical);
+		if (device->zone_info->max_active_zones == 0)
+			continue;
 
-		spin_lock(&fs_info->zone_active_bgs_lock);
-		ASSERT(!list_empty(&block_group->active_bg_list));
-		list_del_init(&block_group->active_bg_list);
-		spin_unlock(&fs_info->zone_active_bgs_lock);
+		ret = blkdev_zone_mgmt(device->bdev, REQ_OP_ZONE_FINISH,
+				       physical >> SECTOR_SHIFT,
+				       device->zone_info->zone_size >> SECTOR_SHIFT,
+				       GFP_NOFS);
+
+		if (ret)
+			return ret;
 
-		/* For active_bg_list */
-		btrfs_put_block_group(block_group);
+		btrfs_dev_clear_active_zone(device, physical);
 	}
+	btrfs_dec_block_group_ro(block_group);
 
-	return ret;
+	spin_lock(&fs_info->zone_active_bgs_lock);
+	ASSERT(!list_empty(&block_group->active_bg_list));
+	list_del_init(&block_group->active_bg_list);
+	spin_unlock(&fs_info->zone_active_bgs_lock);
+
+	/* For active_bg_list */
+	btrfs_put_block_group(block_group);
+
+	return 0;
 }
 
 bool btrfs_can_activate_zone(struct btrfs_fs_devices *fs_devices, u64 flags)