linux-kernel - Re: [PATCH 45/49] ACPI: replace nodes__weight with nodes_weight

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <YgqurDJYAqHjpKmf@yury-laptop>
Date:   Mon, 14 Feb 2022 11:34:04 -0800
From:   Yury Norov <yury.norov@...il.com>
To:     "Rafael J. Wysocki" <rafael@...nel.org>
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Michał Mirosław <mirq-linux@...e.qmqm.pl>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Peter Zijlstra <peterz@...radead.org>,
        David Laight <David.Laight@...lab.com>,
        Joe Perches <joe@...ches.com>, Dennis Zhou <dennis@...nel.org>,
        Emil Renner Berthing <kernel@...il.dk>,
        Nicholas Piggin <npiggin@...il.com>,
        Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
        Alexey Klimov <aklimov@...hat.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Len Brown <lenb@...nel.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Huacai Chen <chenhuacai@...nel.org>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Alison Schofield <alison.schofield@...el.com>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>
Subject: Re: [PATCH 45/49] ACPI: replace nodes__weight with nodes_weight_ge
 for numa

On Mon, Feb 14, 2022 at 08:18:27PM +0100, Rafael J. Wysocki wrote:
> On Fri, Feb 11, 2022 at 1:31 AM Yury Norov <yury.norov@...il.com> wrote:
> >
> > acpi_map_pxm_to_node() calls nodes_weight() to compare the weight
> > of nodemask with a given number. We can do it more efficiently with
> > nodes_weight_eq() because conditional nodes_weight may stop
> > traversing the nodemask earlier, as soon as condition is (or is not)
> > met.
> >
> > Signed-off-by: Yury Norov <yury.norov@...il.com>
> > ---
> >  drivers/acpi/numa/srat.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/acpi/numa/srat.c b/drivers/acpi/numa/srat.c
> > index 3b818ab186be..fe7a7996f553 100644
> > --- a/drivers/acpi/numa/srat.c
> > +++ b/drivers/acpi/numa/srat.c
> > @@ -67,7 +67,7 @@ int acpi_map_pxm_to_node(int pxm)
> >         node = pxm_to_node_map[pxm];
> >
> >         if (node == NUMA_NO_NODE) {
> > -               if (nodes_weight(nodes_found_map) >= MAX_NUMNODES)
> > +               if (nodes_weight_ge(nodes_found_map, MAX_NUMNODES))
> >                         return NUMA_NO_NODE;
> >                 node = first_unset_node(nodes_found_map);
> >                 __acpi_map_pxm_to_node(pxm, node);
> > --
> 
> Applied as 5.18 material, thanks!

It depends on patches 44 and 26. Are you applying them too?