Re: [PATCH 06/23] md/md-bitmap: add a new sysfs api bitmap_type

[Yu Kuai]

Hi,

在 2025/05/26 0:32, Xiao Ni 写道:
> > The api will be used by mdadm to set bitmap_ops while creating new array
> Hi Kuai
>
> Maybe you want to say "set bitmap type" here? And can you explain more
> here, why does it need this sys file while creating a new array? The
> reason I ask is that it doesn't use a sys file when creating an array
> with bitmap.

I do mean mddev->bitmap_ops here, this is the same as mddev->pers and
the md/level api. The mdadm patch will write the new helper before
running array.
> And if it really needs this, can this be gotten by superblock?

Theoretically, I can, however, the bitmap superblock is read by
bitmap_ops->create method, and we need to set the bitmap_ops
first. And changing the framwork will be much complex.

Thanks,
Kuai