On Tue, Mar 01, 2022 at 10:45:48AM +0200, Christoph Hellwig wrote:
> @@ -6962,16 +6961,6 @@ struct btrfs_device *btrfs_alloc_device(struct btrfs_fs_info *fs_info,
> if (!dev)
> return ERR_PTR(-ENOMEM);
>
> - /*
> - * Preallocate a bio that's always going to be used for flushing device
> - * barriers and matches the device lifespan
> - */
> - dev->flush_bio = bio_kmalloc(GFP_KERNEL, 0);
> - if (!dev->flush_bio) {
> - kfree(dev);
> - return ERR_PTR(-ENOMEM);
> - }
> -
> INIT_LIST_HEAD(&dev->dev_list);
> INIT_LIST_HEAD(&dev->dev_alloc_list);
> INIT_LIST_HEAD(&dev->post_commit_list);
> diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
> index 005c9e2a491a1..9af7b6211920c 100644
> --- a/fs/btrfs/volumes.h
> +++ b/fs/btrfs/volumes.h
> @@ -117,7 +117,7 @@ struct btrfs_device {
> u64 commit_bytes_used;
>
> /* for sending down flush barriers */
> - struct bio *flush_bio;
Please add this comment to the struct member declaration:
/* Bio used for flushing device barriers */
> + struct bio flush_bio;
Otherwise
Reviewed-by: David Sterba <dsterba@xxxxxxxx>
Thanks.
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