btrfs: pass btrfs_inode to btrfs_submit_bio_start_direct_io

The function is for internal interfaces so we should use the
btrfs_inode.
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/btrfs_inode.h

@@ -416,7 +416,7 @@ void btrfs_submit_data_read_bio(struct inode *inode, struct bio *bio,
 			int mirror_num, enum btrfs_compression_type compress_type);
 void btrfs_submit_dio_repair_bio(struct inode *inode, struct bio *bio, int mirror_num);
 blk_status_t btrfs_submit_bio_start(struct btrfs_inode *inode, struct bio *bio);
-blk_status_t btrfs_submit_bio_start_direct_io(struct inode *inode,
+blk_status_t btrfs_submit_bio_start_direct_io(struct btrfs_inode *inode,
 					      struct bio *bio,
 					      u64 dio_file_offset);
 int btrfs_check_sector_csum(struct btrfs_fs_info *fs_info, struct page *page,

fs/btrfs/disk-io.c

@@ -645,7 +645,7 @@ static void run_one_async_start(struct btrfs_work *work)
 		ret = btrfs_submit_bio_start(async->inode, async->bio);
 		break;
 	case WQ_SUBMIT_DATA_DIO:
-		ret = btrfs_submit_bio_start_direct_io(&async->inode->vfs_inode,
+		ret = btrfs_submit_bio_start_direct_io(async->inode,
 				async->bio, async->dio_file_offset);
 		break;
 	}

fs/btrfs/inode.c

@@ -7965,11 +7965,11 @@ static blk_status_t btrfs_check_read_dio_bio(struct btrfs_dio_private *dip,
 	return err;
 }
 
-blk_status_t btrfs_submit_bio_start_direct_io(struct inode *inode,
+blk_status_t btrfs_submit_bio_start_direct_io(struct btrfs_inode *inode,
 					      struct bio *bio,
 					      u64 dio_file_offset)
 {
-	return btrfs_csum_one_bio(BTRFS_I(inode), bio, dio_file_offset, false);
+	return btrfs_csum_one_bio(inode, bio, dio_file_offset, false);
 }
 
 static void btrfs_end_dio_bio(struct btrfs_bio *bbio)