diff options
| author | Johannes Thumshirn <johannes.thumshirn@wdc.com> | 2021-02-04 19:22:03 +0900 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2021-02-09 02:46:05 +0100 |
| commit | 08f455593fff701e103876d4db5d3f4f6d0ff871 (patch) | |
| tree | 21c7fd1247437897726a182c1b9eb91bdbae267f /fs/btrfs/block-group.h | |
| parent | 138082f36610698e3fd00318f275d7f2159b8d26 (diff) | |
btrfs: zoned: cache if block group is on a sequential zone
On a zoned filesystem, 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 data, therefore provide btrfs_use_zone_append() to figure out if
IO is targeting a sequential write only zone and we can use
REQ_OP_ZONE_APPEND for data writing.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/block-group.h')
| -rw-r--r-- | fs/btrfs/block-group.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/btrfs/block-group.h b/fs/btrfs/block-group.h index d14ac03bb93d..31c7c5872b92 100644 --- a/fs/btrfs/block-group.h +++ b/fs/btrfs/block-group.h @@ -181,6 +181,9 @@ struct btrfs_block_group { */ int needs_free_space; + /* Flag indicating this block group is placed on a sequential zone */ + bool seq_zone; + /* Record locked full stripes for RAID5/6 block group */ struct btrfs_full_stripe_locks_tree full_stripe_locks_root; |