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Date: Tue, 28 Jul 2020 13:56:02 +0300
From: Mike Rapoport <rppt@kernel.org>
Subject: Re: [PATCH 14/15] x86/numa: remove redundant iteration over
 memblock.reserved
Message-ID: <20200728105602.GB3655207@kernel.org>
References: <20200728051153.1590-1-rppt@kernel.org>
 <20200728051153.1590-15-rppt@kernel.org>
 <20200728104440.GA222284@gmail.com>
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To: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>, Andy Lutomirski <luto@kernel.org>, Benjamin Herrenschmidt <benh@kernel.crashing.org>, Borislav Petkov <bp@alien8.de>, Catalin Marinas <catalin.marinas@arm.com>, Christoph Hellwig <hch@lst.de>, Dave Hansen <dave.hansen@linux.intel.com>, Ingo Molnar <mingo@redhat.com>, Marek Szyprowski <m.szyprowski@samsung.com>, Max Filippov <jcmvbkbc@gmail.com>, Michael Ellerman <mpe@ellerman.id.au>, Michal Simek <monstr@monstr.eu>, Mike Rapoport <rppt@linux.ibm.com>, Palmer Dabbelt <palmer@dabbelt.com>, Paul Mackerras <paulus@samba.org>, Paul Walmsley <paul.walmsley@sifive.com>, Peter Zijlstra <peterz@infradead.org>, Russell King <linux@armlinux.org.uk>, Stafford Horne <shorne@gmail.com>, Thomas Gleixner <tglx@linutronix.de>, Will Deacon <will@kernel.org>, Yoshinori Sato <ysato@users.sourceforge.jp>, clang-built-linux@googlegroups.com, iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, linux-c6x-dev@linux-c6x.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-xtensa@linux-xtensa.org, linuxppc-dev@lists.ozlabs.org, openrisc@lists.librecores.org, sparclinux@vger.kernel.org, uclinux-h8-devel@lists.sourceforge.jp, x86@kernel.org

On Tue, Jul 28, 2020 at 12:44:40PM +0200, Ingo Molnar wrote:
> 
> * Mike Rapoport <rppt@kernel.org> wrote:
> 
> > From: Mike Rapoport <rppt@linux.ibm.com>
> > 
> > numa_clear_kernel_node_hotplug() function first traverses numa_meminfo
> > regions to set node ID in memblock.reserved and than traverses
> > memblock.reserved to update reserved_nodemask to include node IDs that were
> > set in the first loop.
> > 
> > Remove redundant traversal over memblock.reserved and update
> > reserved_nodemask while iterating over numa_meminfo.
> > 
> > Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
> > ---
> >  arch/x86/mm/numa.c | 26 ++++++++++----------------
> >  1 file changed, 10 insertions(+), 16 deletions(-)
> 
> I suspect you'd like to carry this in the -mm tree?

Yes.
 
> Acked-by: Ingo Molnar <mingo@kernel.org>

Thanks!

> Thanks,
> 
> 	Ingo

-- 
Sincerely yours,
Mike.