From: Rob Herring <robh@kernel.org> To: Gavin Shan <gshan@redhat.com> Cc: devicetree@vger.kernel.org, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, linux-efi <linux-efi@vger.kernel.org>, linux-arm-kernel <linux-arm-kernel@lists.infradead.org>, "open list:KERNEL VIRTUAL MACHINE FOR ARM64 (KVM/arm64)" <kvmarm@lists.cs.columbia.edu>, Marc Zyngier <maz@kernel.org>, Randy Dunlap <rdunlap@infradead.org>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, shan.gavin@gmail.com Subject: Re: [PATCH v2 2/2] of, numa: Fetch empty NUMA node ID from distance map Date: Mon, 27 Sep 2021 09:49:30 -0500 [thread overview] Message-ID: <CAL_JsqL8+_Q690-c3J4TS6LBF-mCUBxbhTfr994=Fwffqab0_w@mail.gmail.com> (raw) In-Reply-To: <20210927064119.127285-3-gshan@redhat.com> On Mon, Sep 27, 2021 at 1:42 AM Gavin Shan <gshan@redhat.com> wrote: > > There is no device node for the empty NUMA node. However, the > corresponding NUMA node ID and distance map is still valid in > "numa-distance-map-v1" compatible device node. > > This fetches the NUMA node ID and distance map for these empty > NUMA node from "numa-distance-map-v1" compatible device node. This is much nicer. > Signed-off-by: Gavin Shan <gshan@redhat.com> > --- > drivers/of/of_numa.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/of/of_numa.c b/drivers/of/of_numa.c > index fe6b13608e51..5949829a1b00 100644 > --- a/drivers/of/of_numa.c > +++ b/drivers/of/of_numa.c > @@ -111,6 +111,8 @@ static int __init of_numa_parse_distance_map_v1(struct device_node *map) > return -EINVAL; > } > > + node_set(nodea, numa_nodes_parsed); > + With this, couldn't we remove of_numa_parse_cpu_nodes() as the only thing it does is node_set()? > numa_set_distance(nodea, nodeb, distance); > > /* Set default distance of node B->A same as A->B */ > -- > 2.23.0 >
next prev parent reply other threads:[~2021-09-27 14:49 UTC|newest] Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-09-27 6:41 [PATCH v2 0/2] Specify empty NUMA node Gavin Shan 2021-09-27 6:41 ` [PATCH v2 1/2] Documentation, dt, numa: Add note to " Gavin Shan 2021-10-04 18:13 ` Rob Herring 2021-09-27 6:41 ` [PATCH v2 2/2] of, numa: Fetch empty NUMA node ID from distance map Gavin Shan 2021-09-27 14:49 ` Rob Herring [this message] 2021-09-27 23:59 ` Gavin Shan 2021-09-28 17:22 ` Rob Herring 2021-09-29 2:00 ` Gavin Shan 2021-10-04 18:13 ` Rob Herring
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