From: Ingo Molnar <mingo@kernel.org>
To: Mike Rapoport <rppt@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Emil Renner Berthing <kernel@esmil.dk>,
linux-sh@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Dave Hansen <dave.hansen@linux.intel.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>, Christoph Hellwig <hch@lst.de>,
linux-arch@vger.kernel.org, linux-s390@vger.kernel.org,
linux-c6x-dev@linux-c6x.org,
Michael Ellerman <mpe@ellerman.id.au>,
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>,
linux-arm-kernel@lists.infradead.org,
Catalin Marinas <catalin.marinas@arm.com>,
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Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>,
Paul Walmsley <paul.walmsley@sifive.com>,
Stafford Horne <shorne@gmail.com>,
Hari Bathini <hbathini@linux.ibm.com>,
Michal Simek <monstr@monstr.eu>,
Yoshinori Sato <ysato@users.sourceforge.jp>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
iommu@lists.linux-foundation.org,
Palmer Dabbelt <palmer@dabbelt.com>,
Andrew Morton <akpm@linux-foundation.org>,
linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v2 13/17] x86/setup: simplify initrd relocation and reservation
Date: Sun, 2 Aug 2020 20:01:10 +0200 [thread overview]
Message-ID: <20200802180110.GA86614@gmail.com> (raw)
In-Reply-To: <20200802163601.8189-14-rppt@kernel.org>
* Mike Rapoport <rppt@kernel.org> wrote:
> From: Mike Rapoport <rppt@linux.ibm.com>
>
> Currently, initrd image is reserved very early during setup and then it
> might be relocated and re-reserved after the initial physical memory
> mapping is created. The "late" reservation of memblock verifies that mapped
> memory size exceeds the size of initrd, the checks whether the relocation
> required and, if yes, relocates inirtd to a new memory allocated from
> memblock and frees the old location.
>
> The check for memory size is excessive as memblock allocation will anyway
> fail if there is not enough memory. Besides, there is no point to allocate
> memory from memblock using memblock_find_in_range() + memblock_reserve()
> when there exists memblock_phys_alloc_range() with required functionality.
>
> Remove the redundant check and simplify memblock allocation.
>
> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Assuming there's no hidden dependency here breaking something:
Acked-by: Ingo Molnar <mingo@kernel.org>
Thanks,
Ingo
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next prev parent reply other threads:[~2020-08-02 18:01 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-02 16:35 [PATCH v2 00/17] memblock: seasonal cleaning^w cleanup Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 01/17] KVM: PPC: Book3S HV: simplify kvm_cma_reserve() Mike Rapoport
2020-08-04 13:53 ` Daniel Axtens
2020-08-02 16:35 ` [PATCH v2 02/17] dma-contiguous: simplify cma_early_percent_memory() Mike Rapoport
2020-08-05 3:50 ` Baoquan He
2020-08-02 16:35 ` [PATCH v2 03/17] arm, xtensa: simplify initialization of high memory pages Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 04/17] arm64: numa: simplify dummy_numa_init() Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 05/17] h8300, nds32, openrisc: simplify detection of memory extents Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 06/17] riscv: drop unneeded node initialization Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 07/17] mircoblaze: drop unneeded NUMA and sparsemem initializations Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 08/17] memblock: make for_each_memblock_type() iterator private Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 09/17] memblock: make memblock_debug and related functionality private Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 10/17] memblock: reduce number of parameters in for_each_mem_range() Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 11/17] arch, mm: replace for_each_memblock() with for_each_mem_pfn_range() Mike Rapoport
2020-08-05 3:57 ` Baoquan He
2020-08-02 16:35 ` [PATCH v2 12/17] arch, drivers: replace for_each_membock() with for_each_mem_range() Mike Rapoport
2020-08-05 11:00 ` Thomas Bogendoerfer
2020-08-02 16:35 ` [PATCH v2 13/17] x86/setup: simplify initrd relocation and reservation Mike Rapoport
2020-08-02 18:01 ` Ingo Molnar [this message]
2020-08-05 4:20 ` Baoquan He
2020-08-05 5:59 ` Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 14/17] x86/setup: simplify reserve_crashkernel() Mike Rapoport
2020-08-02 18:02 ` Ingo Molnar
2020-08-05 6:00 ` Baoquan He
2020-08-02 16:35 ` [PATCH v2 15/17] memblock: remove unused memblock_mem_size() Mike Rapoport
2020-08-05 8:29 ` Baoquan He
2020-08-02 16:36 ` [PATCH v2 16/17] memblock: implement for_each_reserved_mem_region() using __next_mem_region() Mike Rapoport
2020-08-05 9:11 ` Baoquan He
2020-08-05 17:11 ` Miguel Ojeda
2020-08-02 16:36 ` [PATCH v2 17/17] memblock: use separate iterators for memory and reserved regions Mike Rapoport
2020-08-02 18:03 ` Ingo Molnar
2020-08-05 9:29 ` Baoquan He
2020-08-05 10:58 ` Thomas Bogendoerfer
2020-08-05 17:10 ` Miguel Ojeda
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