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| author | Christoph Hellwig <hch@lst.de> | 2023-01-21 07:50:30 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2023-02-15 19:38:53 +0100 |
| commit | d5e4377d505189c30df50d54f9944d7fb8d528bb (patch) | |
| tree | 6eb5e035002e63d9ef931934b30199bca9fc3b75 /fs/btrfs/zoned.h | |
| parent | 243cf8d1b6737d4b53ac16b211987bbd299478e6 (diff) | |
| download | lwn-d5e4377d505189c30df50d54f9944d7fb8d528bb.tar.gz lwn-d5e4377d505189c30df50d54f9944d7fb8d528bb.zip | |
btrfs: split zone append bios in btrfs_submit_bio
The current btrfs zoned device support is a little cumbersome in the data
I/O path as it requires the callers to not issue I/O larger than the
supported ZONE_APPEND size of the underlying device. This leads to a lot
of extra accounting. Instead change btrfs_submit_bio so that it can take
write bios of arbitrary size and form from the upper layers, and just
split them internally to the ZONE_APPEND queue limits. Then remove all
the upper layer warts catering to limited write sized on zoned devices,
including the extra refcount in the compressed_bio.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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, 0 insertions, 9 deletions
diff --git a/fs/btrfs/zoned.h b/fs/btrfs/zoned.h index f25f332b7728..157f46132c56 100644 --- a/fs/btrfs/zoned.h +++ b/fs/btrfs/zoned.h @@ -66,8 +66,6 @@ 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); bool btrfs_zone_activate(struct btrfs_block_group *block_group); int btrfs_zone_finish(struct btrfs_block_group *block_group); bool btrfs_can_activate_zone(struct btrfs_fs_devices *fs_devices, u64 flags); @@ -221,13 +219,6 @@ 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); -} - static inline bool btrfs_zone_activate(struct btrfs_block_group *block_group) { return true; |