From: Michael Ellerman <mpe@ellerman•id.au>
To: Mike Rapoport <rppt@kernel•org>
Cc: linux-sh@vger•kernel.org, Peter Zijlstra <peterz@infradead•org>,
Dave Hansen <dave.hansen@linux•intel.com>,
Hari Bathini <hbathini@in•ibm.com>,
linux-mips@vger•kernel.org, Max Filippov <jcmvbkbc@gmail•com>,
Paul Mackerras <paulus@samba•org>,
sparclinux@vger•kernel.org, linux-riscv@lists•infradead.org,
Will Deacon <will@kernel•org>, Stafford Horne <shorne@gmail•com>,
Marek Szyprowski <m.szyprowski@samsung•com>,
linux-s390@vger•kernel.org, linux-c6x-dev@linux-c6x•org,
Yoshinori Sato <ysato@users•sourceforge.jp>,
x86@kernel•org, Russell King <linux@armlinux•org.uk>,
Mike Rapoport <rppt@linux•ibm.com>,
clang-built-linux@googlegroups•com,
Ingo Molnar <mingo@redhat•com>,
Catalin Marinas <catalin.marinas@arm•com>,
uclinux-h8-devel@lists•sourceforge.jp,
linux-xtensa@linux-xtensa•org, openrisc@lists•librecores.org,
Borislav Petkov <bp@alien8•de>, Andy Lutomirski <luto@kernel•org>,
Paul Walmsley <paul.walmsley@sifive•com>,
Thomas Gleixner <tglx@linutronix•de>,
linux-arm-kernel@lists•infradead.org,
Michal Simek <monstr@monstr•eu>,
linux-mm@kvack•org, linuxppc-dev@lists•ozlabs.org,
linux-kernel@vger•kernel.org, iommu@lists•linux-foundation.org,
Palmer Dabbelt <palmer@dabbelt•com>,
Andrew Morton <akpm@linux-foundation•org>,
Christoph Hellwig <hch@lst•de>
Subject: Re: [PATCH 06/15] powerpc: fadamp: simplify fadump_reserve_crash_area()
Date: Sun, 02 Aug 2020 23:14:10 +1000 [thread overview]
Message-ID: <87o8nt197h.fsf@mpe.ellerman.id.au> (raw)
In-Reply-To: <20200801101854.GD534153@kernel.org>
Mike Rapoport <rppt@kernel•org> writes:
> On Thu, Jul 30, 2020 at 10:15:13PM +1000, Michael Ellerman wrote:
>> Mike Rapoport <rppt@kernel•org> writes:
>> > From: Mike Rapoport <rppt@linux•ibm.com>
>> >
>> > fadump_reserve_crash_area() reserves memory from a specified base address
>> > till the end of the RAM.
>> >
>> > Replace iteration through the memblock.memory with a single call to
>> > memblock_reserve() with appropriate that will take care of proper memory
>> ^
>> parameters?
>> > reservation.
>> >
>> > Signed-off-by: Mike Rapoport <rppt@linux•ibm.com>
>> > ---
>> > arch/powerpc/kernel/fadump.c | 20 +-------------------
>> > 1 file changed, 1 insertion(+), 19 deletions(-)
>>
>> I think this looks OK to me, but I don't have a setup to test it easily.
>> I've added Hari to Cc who might be able to.
>>
>> But I'll give you an ack in the hope that it works :)
>
> Actually, I did some digging in the git log and the traversal was added
> there on purpose by the commit b71a693d3db3 ("powerpc/fadump: exclude
> memory holes while reserving memory in second kernel")
> Presuming this is still reqruired I'm going to drop this patch and will
> simply replace for_each_memblock() with for_each_mem_range() in v2.
Thanks.
cheers
next prev parent reply other threads:[~2020-08-02 13:17 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-28 5:11 [PATCH 00/15] memblock: seasonal cleaning^w cleanup Mike Rapoport
2020-07-28 5:11 ` [PATCH 01/15] KVM: PPC: Book3S HV: simplify kvm_cma_reserve() Mike Rapoport
2020-07-28 5:11 ` [PATCH 02/15] dma-contiguous: simplify cma_early_percent_memory() Mike Rapoport
2020-07-28 6:37 ` Christoph Hellwig
2020-07-28 5:11 ` [PATCH 03/15] arm, xtensa: simplify initialization of high memory pages Mike Rapoport
2020-07-28 8:09 ` Max Filippov
2020-07-28 5:11 ` [PATCH 04/15] arm64: numa: simplify dummy_numa_init() Mike Rapoport
2020-07-29 8:30 ` Jonathan Cameron
2020-07-30 12:03 ` Catalin Marinas
2020-07-28 5:11 ` [PATCH 05/15] h8300, nds32, openrisc: simplify detection of memory extents Mike Rapoport
2020-07-29 11:41 ` Stafford Horne
2020-07-28 5:11 ` [PATCH 06/15] powerpc: fadamp: simplify fadump_reserve_crash_area() Mike Rapoport
2020-07-30 12:15 ` Michael Ellerman
2020-08-01 10:18 ` Mike Rapoport
2020-08-01 10:53 ` Hari Bathini
2020-08-02 13:14 ` Michael Ellerman [this message]
2020-07-28 5:11 ` [PATCH 07/15] riscv: drop unneeded node initialization Mike Rapoport
2020-07-28 5:11 ` [PATCH 08/15] mircoblaze: drop unneeded NUMA and sparsemem initializations Mike Rapoport
2020-07-28 5:11 ` [PATCH 09/15] memblock: make for_each_memblock_type() iterator private Mike Rapoport
2020-07-30 1:52 ` Baoquan He
2020-07-28 5:11 ` [PATCH 10/15] memblock: make memblock_debug and related functionality private Mike Rapoport
2020-07-30 1:54 ` Baoquan He
2020-07-28 5:11 ` [PATCH 11/15] memblock: reduce number of parameters in for_each_mem_range() Mike Rapoport
2020-07-30 2:22 ` Baoquan He
2020-07-28 5:11 ` [PATCH 12/15] arch, mm: replace for_each_memblock() with for_each_mem_pfn_range() Mike Rapoport
2020-07-28 5:11 ` [PATCH 13/15] arch, drivers: replace for_each_membock() with for_each_mem_range() Mike Rapoport
2020-07-28 15:02 ` Emil Renner Berthing
2020-07-28 5:11 ` [PATCH 14/15] x86/numa: remove redundant iteration over memblock.reserved Mike Rapoport
2020-07-28 10:44 ` Ingo Molnar
2020-07-28 10:56 ` Mike Rapoport
2020-07-28 11:31 ` Ingo Molnar
2020-07-28 11:02 ` Baoquan He
2020-07-28 14:15 ` Mike Rapoport
2020-07-28 14:23 ` Baoquan He
2020-07-28 5:11 ` [PATCH 15/15] memblock: remove 'type' parameter from for_each_memblock() Mike Rapoport
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