Re: [PATCH v4 0/4] s390/crash: support multi-segment iterators

[Al Viro]

On Tue, Jul 19, 2022 at 07:16:32AM +0200, Alexander Gordeev wrote:
> Hi Matthew et al,
> 
> This series completes 5d8de293c224 ("vmcore: convert copy_oldmem_page()
> to take an iov_iter") for s390.
> 
> Changes since v3:
>   - concurrent access to HSA and oldmem swap buffers protected;
> 
> Changes since v2:
>   - Matthew Wilcox suggestion is adopted, with that...
>   - copy_to_iter() is used instead of custom implementation;
> 
> Changes since v1:
>   - number of bytes left to copy on fail fixed;

OK...  Do you prefer it to go through s390 tree?  The thing is, I've
stuff in iov_iter tree that conflicts with it; I'll gladly drop that
bit (vfs.git #fixes-s390) in favour of your series (and drop s390
bits from "new iov_iter flavour - ITER_UBUF" in #work.iov_iter - they
are not needed anymore).

I can put your series into replacement of #fixes-s390, or pull it
from whatever static branch you put it into - up to you.
Preferences?