Re: [PATCH RFC md-6.16 v3 17/19] md/md-llbitmap: implement all bitmap operations

[Yu Kuai <yukuai1@xxxxxxxxxxxxxxx>]

Hi,

在 2025/05/12 13:18, Christoph Hellwig 写道:
> On Mon, May 12, 2025 at 09:19:25AM +0800, Yu Kuai wrote:
> > And following APIs that are not needed:
> >   - llbitmap_write_all, used in old bitmap to mark all pages need
> >   writeback;
> >   - llbitmap_daemon_work, used in old bitmap, llbitmap use timer to
> >     trigger daemon;
> >   - llbitmap_cond_end_sync, use to end sync for completed sectors(TODO,
> >     don't affect functionality)
> > And following APIs that are not supported:
> >   - llbitmap_start_behind_write
> >   - llbitmap_end_behind_write
> >   - llbitmap_wait_behind_writes
> >   - llbitmap_sync_with_cluster
> >   - llbitmap_get_from_slot
> >   - llbitmap_copy_from_slot
> >   - llbitmap_set_pages
> >   - llbitmap_free
>
> Please just make these optional instead of implementing stubs.

Ok, I'll add a patch to check if those methods are NULL before calling
them.

Thanks,
Kuai

> .