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| author | Johannes Thumshirn <johannes.thumshirn@wdc.com> | 2021-05-19 00:40:29 +0900 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2021-06-21 15:19:05 +0200 |
| commit | e7ff9e6b8e7d89199119468ae61b29a56f81ad28 (patch) | |
| tree | 391a711a8b389f79518e2803a17721da185b02b4 /fs/btrfs/zoned.h | |
| parent | 50535db8fbf67d44522de5b79ddf66fb6d0c14a8 (diff) | |
| download | lwn-e7ff9e6b8e7d89199119468ae61b29a56f81ad28.tar.gz lwn-e7ff9e6b8e7d89199119468ae61b29a56f81ad28.zip | |
btrfs: zoned: factor out zoned device lookup
To be able to construct a zone append bio we need to look up the
btrfs_device. The code doing the chunk map lookup to get the device is
present in btrfs_submit_compressed_write and submit_extent_page.
Factor out the lookup calls into a helper and use it in the submission
paths.
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 | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/btrfs/zoned.h b/fs/btrfs/zoned.h index e55d32595c2c..b0ae2608cb6b 100644 --- a/fs/btrfs/zoned.h +++ b/fs/btrfs/zoned.h @@ -65,6 +65,8 @@ void btrfs_revert_meta_write_pointer(struct btrfs_block_group *cache, int btrfs_zoned_issue_zeroout(struct btrfs_device *device, u64 physical, u64 length); int btrfs_sync_zone_write_pointer(struct btrfs_device *tgt_dev, u64 logical, u64 physical_start, u64 physical_pos); +struct btrfs_device *btrfs_zoned_get_device(struct btrfs_fs_info *fs_info, + u64 logical, u64 length); #else /* CONFIG_BLK_DEV_ZONED */ static inline int btrfs_get_dev_zone(struct btrfs_device *device, u64 pos, struct blk_zone *zone) @@ -191,6 +193,13 @@ static inline int btrfs_sync_zone_write_pointer(struct btrfs_device *tgt_dev, return -EOPNOTSUPP; } +static inline struct btrfs_device *btrfs_zoned_get_device( + struct btrfs_fs_info *fs_info, + u64 logical, u64 length) +{ + return ERR_PTR(-EOPNOTSUPP); +} + #endif static inline bool btrfs_dev_is_sequential(struct btrfs_device *device, u64 pos) |