[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PATCH 2/2] dump: fix kdump to work over non-aligned blocks
From: |
David Hildenbrand |
Subject: |
Re: [PATCH 2/2] dump: fix kdump to work over non-aligned blocks |
Date: |
Fri, 26 Aug 2022 12:07:25 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.12.0 |
On 26.08.22 12:02, Marc-André Lureau wrote:
> Hi
>
>
> On Fri, Aug 26, 2022 at 2:01 PM David Hildenbrand <david@redhat.com
> <mailto:david@redhat.com>> wrote:
>
> On 25.08.22 15:21, marcandre.lureau@redhat.com
> <mailto:marcandre.lureau@redhat.com> wrote:
> > From: Marc-André Lureau <marcandre.lureau@redhat.com
> <mailto:marcandre.lureau@redhat.com>>
> >
> > Rewrite get_next_page() to work over non-aligned blocks. When it
> > encounters non aligned addresses, it will allocate a zero-page and try
> > to fill it.
>
> Could we simplify by using one global helper page (or caller provided
> page) and avoiding the allocation/freeing?
>
>
> I don't think that makes a big difference, but certainly doable.
If we're using one central page, I guess we'd have to pass "flag_sync =
true" to write_cache() in case that page is used. Or we simply specify
on the single global page in there and force a sync. Changes would be
limited to get_next_page() and write_cache() then.
--
Thanks,
David / dhildenb