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Re: [PATCH v6] mm/memblock: Add memblock_alloc_or_panic interface
- To: Guo Weikang <guoweikang.kernel@xxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Mike Rapoport <rppt@xxxxxxxxxx>, Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
- From: Xi Ruoyao <xry111@xxxxxxxxxxx>
- Date: Sun, 22 Dec 2024 13:51:08 +0800
- Cc: 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
- Delivery-date: Mon, 23 Dec 2024 14:39:35 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Sun, 2024-12-22 at 13:43 +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.
>
> Signed-off-by: Guo Weikang <guoweikang.kernel@xxxxxxxxx>
> ---
Please try to avoid bumping the patch revision number so quickly.
And if you must do it, you should embed a ChangeLog of your patch (below
this "---" line) so people can know what has been changed.
--
Xi Ruoyao <xry111@xxxxxxxxxxx>
School of Aerospace Science and Technology, Xidian University
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