From: Heiko Carstens <hca@linux.ibm.com>
To: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Claudio Imbrenda <imbrenda@linux.ibm.com>,
Andrey Ryabinin <ryabinin.a.a@gmail.com>,
linux-s390@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com
Subject: Re: [PATCH v7 2/4] s390/mm: Batch PTE updates in lazy MMU mode
Date: Thu, 1 Oct 2026 17:41:17 +0200 [thread overview]
Message-ID: <20261001154117.23106Da3-hca@linux.ibm.com> (raw)
In-Reply-To: <15c64970-d54e-4b8f-96f6-50c021079a94-agordeev@linux.ibm.com>
On Thu, Oct 01, 2026 at 11:20:17AM +0200, Alexander Gordeev wrote:
> On Thu, Oct 01, 2026 at 10:21:43AM +0200, Heiko Carstens wrote:
> > On Thu, Oct 01, 2026 at 10:00:55AM +0200, Alexander Gordeev wrote:
> > > On Mon, Aug 24, 2026 at 12:40:48PM +0200, Heiko Carstens wrote:
> > Not really. But why is lazy_mmu_count 32 bit? Do you expect a nesting
> > level of 2^32? :) If you would reduce that to one byte you could use
> > tmy or cliy.
>
> Good point. But still, do you think it worth dropping the KASAN check?
KASAN check for lowcore? I don't think we care - this is initialized to zero
anyway, so what could go wrong? Also given how frequently these operations are
used, yes, please drop KASAN checks.
next prev parent reply other threads:[~2026-10-01 15:41 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-17 11:32 [PATCH v7 0/4] s390/mm: Batch PTE updates in lazy MMU mode Alexander Gordeev
2026-08-17 11:32 ` [PATCH v7 1/4] mm: Make lazy MMU mode context-aware Alexander Gordeev
2026-08-17 11:49 ` sashiko-bot
2026-08-17 11:33 ` [PATCH v7 2/4] s390/mm: Batch PTE updates in lazy MMU mode Alexander Gordeev
2026-08-17 11:48 ` sashiko-bot
2026-08-24 10:40 ` Heiko Carstens
2026-08-26 12:00 ` Alexander Gordeev
2026-08-26 13:02 ` Heiko Carstens
2026-08-26 14:34 ` Alexander Gordeev
2026-08-27 8:11 ` Heiko Carstens
2026-08-27 11:39 ` Alexander Gordeev
2026-09-01 11:16 ` Alexander Gordeev
2026-09-01 11:21 ` Heiko Carstens
2026-10-01 8:00 ` Alexander Gordeev
2026-10-01 8:21 ` Heiko Carstens
2026-10-01 9:20 ` Alexander Gordeev
2026-10-01 15:41 ` Heiko Carstens [this message]
2026-10-02 8:43 ` Heiko Carstens
2026-10-02 12:30 ` Alexander Gordeev
2026-08-17 11:33 ` [PATCH v7 3/4] mm/kasan: Introduce helpers for lazy MMU mode sanitizer Alexander Gordeev
2026-08-17 11:43 ` sashiko-bot
2026-08-17 22:11 ` Andrey Konovalov
2026-08-18 12:01 ` Alexander Gordeev
2026-08-24 9:56 ` Heiko Carstens
2026-08-25 7:50 ` Alexander Gordeev
2026-08-25 10:08 ` Heiko Carstens
2026-08-17 11:33 ` [PATCH v7 4/4] s390/mm: Lazy " Alexander Gordeev
2026-08-17 11:40 ` sashiko-bot
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20261001154117.23106Da3-hca@linux.ibm.com \
--to=hca@linux.ibm.com \
--cc=agordeev@linux.ibm.com \
--cc=borntraeger@linux.ibm.com \
--cc=gerald.schaefer@linux.ibm.com \
--cc=gor@linux.ibm.com \
--cc=imbrenda@linux.ibm.com \
--cc=kasan-dev@googlegroups.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-s390@vger.kernel.org \
--cc=ryabinin.a.a@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.