Commit 544d24f9 authored by Naohiro Aota's avatar Naohiro Aota Committed by David Sterba
Browse files

btrfs: zoned: enable zone append writing for direct IO 



Likewise to buffered IO, enable zone append writing for direct IO when
its used on a zoned block device.

Reviewed-by: default avatarJosef Bacik <josef@toxicpanda.com>
Signed-off-by: default avatarNaohiro Aota <naohiro.aota@wdc.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent d8e3fb10

fs/btrfs/inode.c

+18 −0
Original line number Diff line number Diff line
@@ -7738,6 +7738,9 @@ static int btrfs_dio_iomap_begin(struct inode *inode, loff_t start, 
	iomap->bdev = fs_info->fs_devices->latest_bdev;

	iomap->length = len;



	if (write && btrfs_use_zone_append(BTRFS_I(inode), em))

		iomap->flags |= IOMAP_F_ZONE_APPEND;



	free_extent_map(em);



	return 0;
@@ -7964,6 +7967,8 @@ static void btrfs_end_dio_bio(struct bio *bio) 
	if (err)

		dip->dio_bio->bi_status = err;



	btrfs_record_physical_zoned(dip->inode, dip->logical_offset, bio);



	bio_put(bio);

	btrfs_dio_private_put(dip);

}
@@ -8124,6 +8129,19 @@ static blk_qc_t btrfs_submit_direct(struct inode *inode, struct iomap *iomap, 
		bio->bi_end_io = btrfs_end_dio_bio;

		btrfs_io_bio(bio)->logical = file_offset;



		WARN_ON_ONCE(write && btrfs_is_zoned(fs_info) &&

			     fs_info->max_zone_append_size &&

			     bio_op(bio) != REQ_OP_ZONE_APPEND);



		if (bio_op(bio) == REQ_OP_ZONE_APPEND) {

			status = extract_ordered_extent(BTRFS_I(inode), bio,

							file_offset);

			if (status) {

				bio_put(bio);

				goto out_err;

			}

		}



		ASSERT(submit_len >= clone_len);

		submit_len -= clone_len;