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| author | Christoph Hellwig <hch@lst.de> | 2023-05-31 09:53:55 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2023-06-19 13:59:36 +0200 |
| commit | a39da514eba81e687db05efb1e8b7cb393e2cb71 (patch) | |
| tree | a3b97fb224c619d39f0dffd4ff893c1ab0320ab0 /fs/btrfs/bio.h | |
| parent | c731cd0b6d255e4855a7cac9f276864032ab2387 (diff) | |
| download | linux-a39da514eba81e687db05efb1e8b7cb393e2cb71.tar.gz linux-a39da514eba81e687db05efb1e8b7cb393e2cb71.tar.bz2 linux-a39da514eba81e687db05efb1e8b7cb393e2cb71.zip | |
btrfs: limit write bios to a single ordered extent
Currently buffered writeback bios are allowed to span multiple
ordered_extents, although that basically never actually happens since
commit 4a445b7b6178 ("btrfs: don't merge pages into bio if their page
offset is not contiguous").
Supporting bios than span ordered_extents complicates the file
checksumming code, and prevents us from adding an ordered_extent pointer
to the btrfs_bio structure. Use the existing code to limit a bio to
single ordered_extent for zoned device writes for all writes.
This allows to remove the REQ_BTRFS_ONE_ORDERED flags, and the
handling of multiple ordered_extents in btrfs_csum_one_bio.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/bio.h')
| -rw-r--r-- | fs/btrfs/bio.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/btrfs/bio.h b/fs/btrfs/bio.h index 8a29980159b4..52e7962103ff 100644 --- a/fs/btrfs/bio.h +++ b/fs/btrfs/bio.h @@ -102,9 +102,6 @@ static inline void btrfs_bio_end_io(struct btrfs_bio *bbio, blk_status_t status) bbio->end_io(bbio); } -/* Bio only refers to one ordered extent. */ -#define REQ_BTRFS_ONE_ORDERED REQ_DRV - /* Submit using blkcg_punt_bio_submit. */ #define REQ_BTRFS_CGROUP_PUNT REQ_FS_PRIVATE |