From: "Michael S. Tsirkin" <mst@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org,
"David Hildenbrand (Arm)" <david@kernel.org>,
"Gregory Price" <gourry@gourry.net>, "Zi Yan" <ziy@nvidia.com>,
"Pankaj Gupta" <pankaj.gupta@amd.com>,
"Jason Wang" <jasowang@redhat.com>,
"Xuan Zhuo" <xuanzhuo@linux.alibaba.com>,
"Eugenio Pérez" <eperezma@redhat.com>,
"Lorenzo Stoakes" <ljs@kernel.org>,
"Liam R. Howlett" <liam@infradead.org>,
"Vlastimil Babka" <vbabka@kernel.org>,
"Mike Rapoport" <rppt@kernel.org>,
"Suren Baghdasaryan" <surenb@google.com>,
"Michal Hocko" <mhocko@suse.com>,
"Brendan Jackman" <jackmanb@google.com>,
"Johannes Weiner" <hannes@cmpxchg.org>,
"Alexander Duyck" <alexander.h.duyck@linux.intel.com>,
virtualization@lists.linux.dev, linux-mm@kvack.org
Subject: Re: [PATCH v3] mm: page_reporting: allow driver to set batch capacity
Date: Sun, 5 Jul 2026 04:42:38 -0400 [thread overview]
Message-ID: <20260705044139-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <20260705013956.36f649b5cb13409d9088838a@linux-foundation.org>
On Sun, Jul 05, 2026 at 01:39:56AM -0700, Andrew Morton wrote:
> On Sun, 5 Jul 2026 04:25:53 -0400 "Michael S. Tsirkin" <mst@redhat.com> wrote:
>
> > > > If capacity is 0 or exceeds PAGE_REPORTING_CAPACITY, it defaults
> > > > to PAGE_REPORTING_CAPACITY. The 0 check and the clamping is done in
> > > > page_reporting_register(), before the reporting work is scheduled,
> > > > so we never get division by 0.
> > >
> > > Thanks. What's the priority here? Should we fix 7.2? Earlier?
> >
> > If possible, I'd like it in 7.2, have a setup like this (small
> > queue is useful for perf testing).
> > It's very early in the cycle and the code seems straight forward...
> > I judge the chances of breaking anything is tiny because
> > it just failed probe previously.
>
> No probs, I moved this to the the mm-hotfixes-unstable queue. No cc:stable.
I suspect the Fixes tag will make their AI pick it anyway. But hey.
--
MST
next prev parent reply other threads:[~2026-07-05 8:42 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-05 6:25 [PATCH v3] mm: page_reporting: allow driver to set batch capacity Michael S. Tsirkin
2026-07-05 8:16 ` Andrew Morton
2026-07-05 8:25 ` Michael S. Tsirkin
2026-07-05 8:39 ` Andrew Morton
2026-07-05 8:42 ` Michael S. Tsirkin [this message]
2026-07-05 8:51 ` Andrew Morton
2026-07-05 9:03 ` Michael S. Tsirkin
2026-07-05 9:06 ` Michael S. Tsirkin
2026-07-05 18:06 ` Andrew Morton
2026-07-06 13:01 ` Sasha Levin
2026-07-05 8:34 ` Michael S. Tsirkin
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