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| 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/zoned.h | |
| parent | 138082f36610698e3fd00318f275d7f2159b8d26 (diff) | |
| download | linux-08f455593fff701e103876d4db5d3f4f6d0ff871.tar.gz linux-08f455593fff701e103876d4db5d3f4f6d0ff871.tar.bz2 linux-08f455593fff701e103876d4db5d3f4f6d0ff871.zip | |
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/zoned.h')
| -rw-r--r-- | fs/btrfs/zoned.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/btrfs/zoned.h b/fs/btrfs/zoned.h index c105641a6ad3..14d578328cbe 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) @@ -133,6 +134,11 @@ 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) { } +static inline 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) |