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Re: [PATCH v7] mm/memblock: Add memblock_alloc_or_panic interface
- To: Guo Weikang <guoweikang.kernel@xxxxxxxxx>
- From: Mike Rapoport <rppt@xxxxxxxxxx>
- Date: Mon, 23 Dec 2024 09:12:14 +0200
- Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>, Dennis Zhou <dennis@xxxxxxxxxx>, Tejun Heo <tj@xxxxxxxxxx>, Christoph Lameter <cl@xxxxxxxxx>, Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>, Sam Creasey <sammy@xxxxxxxxx>, Huacai Chen <chenhuacai@xxxxxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Catalin Marinas <catalin.marinas@xxxxxxx>, Oreoluwa Babatunde <quic_obabatun@xxxxxxxxxxx>, rafael.j.wysocki@xxxxxxxxx, Palmer Dabbelt <palmer@xxxxxxxxxxxx>, Hanjun Guo <guohanjun@xxxxxxxxxx>, Easwar Hariharan <eahariha@xxxxxxxxxxxxxxxxxxx>, Johannes Berg <johannes.berg@xxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxx>, Christian Brauner <brauner@xxxxxxxxxx>, KP Singh <kpsingh@xxxxxxxxxx>, Richard Henderson <richard.henderson@xxxxxxxxxx>, Matt Turner <mattst88@xxxxxxxxx>, Russell King <linux@xxxxxxxxxxxxxxx>, WANG Xuerui <kernel@xxxxxxxxxx>, Michael Ellerman <mpe@xxxxxxxxxxxxxx>, Stefan Kristiansson <stefan.kristiansson@xxxxxxxxxxxxx>, Stafford Horne <shorne@xxxxxxxxx>, Helge Deller <deller@xxxxxx>, Nicholas Piggin <npiggin@xxxxxxxxx>, Christophe Leroy <christophe.leroy@xxxxxxxxxx>, Naveen N Rao <naveen@xxxxxxxxxx>, Madhavan Srinivasan <maddy@xxxxxxxxxxxxx>, Geoff Levand <geoff@xxxxxxxxxxxxx>, Paul Walmsley <paul.walmsley@xxxxxxxxxx>, Palmer Dabbelt <palmer@xxxxxxxxxxx>, Albert Ou <aou@xxxxxxxxxxxxxxxxx>, Andrey Ryabinin <ryabinin.a.a@xxxxxxxxx>, Alexander Potapenko <glider@xxxxxxxxxx>, Andrey Konovalov <andreyknvl@xxxxxxxxx>, Dmitry Vyukov <dvyukov@xxxxxxxxxx>, Vincenzo Frascino <vincenzo.frascino@xxxxxxx>, Heiko Carstens <hca@xxxxxxxxxxxxx>, Vasily Gorbik <gor@xxxxxxxxxxxxx>, Alexander Gordeev <agordeev@xxxxxxxxxxxxx>, Christian Borntraeger <borntraeger@xxxxxxxxxxxxx>, Sven Schnelle <svens@xxxxxxxxxxxxx>, Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>, Rich Felker <dalias@xxxxxxxx>, John Paul Adrian Glaubitz <glaubitz@xxxxxxxxxxxxxxxxxxx>, Andreas Larsson <andreas@xxxxxxxxxxx>, Richard Weinberger <richard@xxxxxx>, Anton Ivanov <anton.ivanov@xxxxxxxxxxxxxxxxxx>, Johannes Berg <johannes@xxxxxxxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, x86@xxxxxxxxxx, linux-alpha@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, loongarch@xxxxxxxxxxxxxxx, linux-m68k@xxxxxxxxxxxxxxxxxxxx, linux-mips@xxxxxxxxxxxxxxx, linux-openrisc@xxxxxxxxxxxxxxx, linux-parisc@xxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, linux-riscv@xxxxxxxxxxxxxxxxxxx, kasan-dev@xxxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, sparclinux@xxxxxxxxxxxxxxx, linux-um@xxxxxxxxxxxxxxxxxxx, linux-acpi@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-omap@xxxxxxxxxxxxxxx, linux-clk@xxxxxxxxxxxxxxx, devicetree@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-pm@xxxxxxxxxxxxxxx, Xi Ruoyao <xry111@xxxxxxxxxxx>
- Delivery-date: Mon, 23 Dec 2024 07:13:21 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Sun, Dec 22, 2024 at 07:15:37PM +0800, Guo Weikang wrote:
> Before SLUB initialization, various subsystems used memblock_alloc to
> allocate memory. In most cases, when memory allocation fails, an immediate
> panic is required. To simplify this behavior and reduce repetitive checks,
> introduce `memblock_alloc_or_panic`. This function ensures that memory
> allocation failures result in a panic automatically, improving code
> readability and consistency across subsystems that require this behavior.
>
> Changelog:
> ----------
> v1: initial version
> v2: add __memblock_alloc_or_panic support panic output caller
> v3: panic output phys_addr_t use printk's %pap
> v4: make __memblock_alloc_or_panic out-of-line, move to memblock.c
> v6: Fix CI compile error
> Links to CI:
> https://lore.kernel.org/oe-kbuild-all/202412221000.r1NzXJUO-lkp@xxxxxxxxx/
> v6: Fix CI compile warinigs
> Links to CI:
> https://lore.kernel.org/oe-kbuild-all/202412221259.JuGNAUCq-lkp@xxxxxxxxx/
> v7: add chagelog and adjust function declaration alignment format
> ----------
>
> Signed-off-by: Guo Weikang <guoweikang.kernel@xxxxxxxxx>
> Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> Reviewed-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
> Reviewed-by: Mike Rapoport (Microsoft) <rppt@xxxxxxxxxx>
> Acked-by: Xi Ruoyao <xry111@xxxxxxxxxxx>
If people commented on your patch it does not mean you should add
Reviewed-by or Acked-by tags for them. Wait for explicit tags from the
reviewers.
And don't respin that often, "Reviewers are busy people and may not get to
your patch right away" [1].
[1] https://docs.kernel.org/process/submitting-patches.html
--
Sincerely yours,
Mike.
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