From: Shakeel Butt <shakeel.butt@linux.dev>
To: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: kernel test robot <oliver.sang@intel.com>,
oe-lkp@lists.linux.dev, lkp@intel.com,
Andrew Morton <akpm@linux-foundation.org>,
"Paul E. McKenney" <paulmck@kernel.org>,
Steven Rostedt <rostedt@goodmis.org>,
Masami Hiramatsu <mhiramat@kernel.org>,
Dennis Zhou <dennis@kernel.org>, Tejun Heo <tj@kernel.org>,
Christoph Lameter <cl@linux.com>,
Martin Liu <liumartin@google.com>,
David Rientjes <rientjes@google.com>,
SeongJae Park <sj@kernel.org>, Michal Hocko <mhocko@suse.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Sweet Tea Dorminy <sweettea@google.com>,
Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
"Liam R . Howlett" <liam.howlett@oracle.com>,
Mike Rapoport <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
Vlastimil Babka <vbabka@suse.cz>,
Christian Brauner <brauner@kernel.org>,
Wei Yang <richard.weiyang@gmail.com>,
David Hildenbrand <david@redhat.com>,
Miaohe Lin <linmiaohe@huawei.com>,
Al Viro <viro@zeniv.linux.org.uk>, Yu Zhao <yuzhao@google.com>,
Roman Gushchin <roman.gushchin@linux.dev>,
Mateusz Guzik <mjguzik@gmail.com>,
Matthew Wilcox <willy@infradead.org>,
Baolin Wang <baolin.wang@linux.alibaba.com>,
Aboorva Devarajan <aboorvad@linux.ibm.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
linux-trace-kernel@vger.kernel.org, christian.koenig@amd.com
Subject: Re: [RFC PATCH v7 2/2] mm: Fix OOM killer inaccuracy on large many-core systems
Date: Fri, 7 Nov 2025 16:01:58 -0800 [thread overview]
Message-ID: <ahtgrrgn4uwqjumr2blnnhyykow77weu3iuk2wqiimjhq4yset@5o3wls37n5pp> (raw)
In-Reply-To: <81258c9e-1436-4a4f-9343-ef574b8b0de6@efficios.com>
On Fri, Nov 07, 2025 at 11:04:01AM -0500, Mathieu Desnoyers wrote:
> On 2025-11-07 10:53, Mathieu Desnoyers wrote:
> [...]
> >
> > It would make sense to call an explicit percpu counter tree init
> > function from start_kernel() between the call to mm_core_init() and the
> > call to maple_tree_init(). This way it would be initialized right after
> > mm, but given that the hierarchical counter tree is a lib that can be
> > used for other purposes than mm accounting, I think it makes sense
> > to call its init explicitly from start_kernel() rather than bury
> > it within mm_core_init().
> See the following diff. If nobody object, I'll prepare a v8 which
> includes it.
This seems reasonable to me, I see v8 is already posted. I will take a
deeper look.
prev parent reply other threads:[~2025-11-08 0:02 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-31 14:42 [RFC PATCH v7 0/2] " Mathieu Desnoyers
2025-10-31 14:42 ` [RFC PATCH v7 1/2] lib: Introduce hierarchical per-cpu counters Mathieu Desnoyers
2025-10-31 14:42 ` [RFC PATCH v7 2/2] mm: Fix OOM killer inaccuracy on large many-core systems Mathieu Desnoyers
2025-11-06 6:53 ` kernel test robot
2025-11-07 0:32 ` Shakeel Butt
2025-11-07 14:43 ` Mathieu Desnoyers
2025-11-07 15:53 ` Mathieu Desnoyers
2025-11-07 16:04 ` Mathieu Desnoyers
2025-11-08 0:01 ` Shakeel Butt [this message]
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