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Date: Tue, 28 Jul 2020 12:44:40 +0200 From: Ingo Molnar <mingo@...nel.org> To: Mike Rapoport <rppt@...nel.org> Cc: Andrew Morton <akpm@...ux-foundation.org>, Andy Lutomirski <luto@...nel.org>, Benjamin Herrenschmidt <benh@...nel.crashing.org>, Borislav Petkov <bp@...en8.de>, Catalin Marinas <catalin.marinas@....com>, Christoph Hellwig <hch@....de>, Dave Hansen <dave.hansen@...ux.intel.com>, Ingo Molnar <mingo@...hat.com>, Marek Szyprowski <m.szyprowski@...sung.com>, Max Filippov <jcmvbkbc@...il.com>, Michael Ellerman <mpe@...erman.id.au>, Michal Simek <monstr@...str.eu>, Mike Rapoport <rppt@...ux.ibm.com>, Palmer Dabbelt <palmer@...belt.com>, Paul Mackerras <paulus@...ba.org>, Paul Walmsley <paul.walmsley@...ive.com>, Peter Zijlstra <peterz@...radead.org>, Russell King <linux@...linux.org.uk>, Stafford Horne <shorne@...il.com>, Thomas Gleixner <tglx@...utronix.de>, Will Deacon <will@...nel.org>, Yoshinori Sato <ysato@...rs.sourceforge.jp>, clang-built-linux@...glegroups.com, iommu@...ts.linux-foundation.org, linux-arm-kernel@...ts.infradead.org, linux-c6x-dev@...ux-c6x.org, linux-kernel@...r.kernel.org, linux-mips@...r.kernel.org, linux-mm@...ck.org, linux-riscv@...ts.infradead.org, linux-s390@...r.kernel.org, linux-sh@...r.kernel.org, linux-xtensa@...ux-xtensa.org, linuxppc-dev@...ts.ozlabs.org, openrisc@...ts.librecores.org, sparclinux@...r.kernel.org, uclinux-h8-devel@...ts.sourceforge.jp, x86@...nel.org Subject: Re: [PATCH 14/15] x86/numa: remove redundant iteration over memblock.reserved * Mike Rapoport <rppt@...nel.org> wrote: > From: Mike Rapoport <rppt@...ux.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@...ux.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? Acked-by: Ingo Molnar <mingo@...nel.org> Thanks, Ingo
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