From a39da514eba81e687db05efb1e8b7cb393e2cb71 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 31 May 2023 09:53:55 +0200 Subject: 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 Reviewed-by: Josef Bacik Signed-off-by: Christoph Hellwig Reviewed-by: David Sterba Signed-off-by: David Sterba --- fs/btrfs/bio.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'fs/btrfs/bio.h') 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 -- cgit v1.2.3