diff options
| author | Christoph Hellwig <hch@lst.de> | 2023-01-21 09:50:30 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2023-02-15 21:38:53 +0300 |
| commit | d5e4377d505189c30df50d54f9944d7fb8d528bb (patch) | |
| tree | 6eb5e035002e63d9ef931934b30199bca9fc3b75 /fs/btrfs/zoned.c | |
| parent | 243cf8d1b6737d4b53ac16b211987bbd299478e6 (diff) | |
| download | linux-d5e4377d505189c30df50d54f9944d7fb8d528bb.tar.xz | |
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.c')
| -rw-r--r-- | fs/btrfs/zoned.c | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c index bcbe63ebd693..06ed1eeb5981 100644 --- a/fs/btrfs/zoned.c +++ b/fs/btrfs/zoned.c @@ -1845,26 +1845,6 @@ int btrfs_sync_zone_write_pointer(struct btrfs_device *tgt_dev, u64 logical, return btrfs_zoned_issue_zeroout(tgt_dev, physical_pos, length); } -struct btrfs_device *btrfs_zoned_get_device(struct btrfs_fs_info *fs_info, - u64 logical, u64 length) -{ - struct btrfs_device *device; - struct extent_map *em; - struct map_lookup *map; - - em = btrfs_get_chunk_map(fs_info, logical, length); - if (IS_ERR(em)) - return ERR_CAST(em); - - map = em->map_lookup; - /* We only support single profile for now */ - device = map->stripes[0].dev; - - free_extent_map(em); - - return device; -} - /* * Activate block group and underlying device zones * |