Received-SPF: pass (google.com: domain of linux-kernel+bounces-160589-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45d1:ec00::1 as permitted sender) client-ip=2604:1380:45d1:ec00::1;
Precedence: bulk
MIME-Version: 1.0
References: <20240426082854.7355-1-rppt@kernel.org> <20240426082854.7355-8-rppt@kernel.org>
In-Reply-To: <20240426082854.7355-8-rppt@kernel.org>
From: Song Liu <song@kernel.org>
Date: Fri, 26 Apr 2024 11:54:06 -0700
Message-ID: <CAPhsuW7+wmDA_aaZKhNLfEZ-F1aLpUKssXqu5tUs6s=P9yvB-Q@mail.gmail.com>
Subject: Re: [PATCH v6 07/16] mm/execmem, arch: convert simple overrides of
 module_alloc to execmem
To: Mike Rapoport <rppt@kernel.org>
Cc: linux-kernel@vger.kernel.org, Alexandre Ghiti <alexghiti@rivosinc.com>, 
	Andrew Morton <akpm@linux-foundation.org>, =?UTF-8?B?QmrDtnJuIFTDtnBlbA==?= <bjorn@kernel.org>, 
	Catalin Marinas <catalin.marinas@arm.com>, Christophe Leroy <christophe.leroy@csgroup.eu>, 
	"David S. Miller" <davem@davemloft.net>, Dinh Nguyen <dinguyen@kernel.org>, 
	Donald Dutile <ddutile@redhat.com>, Eric Chanudet <echanude@redhat.com>, 
	Heiko Carstens <hca@linux.ibm.com>, Helge Deller <deller@gmx.de>, Huacai Chen <chenhuacai@kernel.org>, 
	Kent Overstreet <kent.overstreet@linux.dev>, Luis Chamberlain <mcgrof@kernel.org>, 
	Mark Rutland <mark.rutland@arm.com>, Masami Hiramatsu <mhiramat@kernel.org>, 
	Michael Ellerman <mpe@ellerman.id.au>, Nadav Amit <nadav.amit@gmail.com>, 
	Palmer Dabbelt <palmer@dabbelt.com>, Peter Zijlstra <peterz@infradead.org>, 
	Rick Edgecombe <rick.p.edgecombe@intel.com>, Russell King <linux@armlinux.org.uk>, 
	Sam Ravnborg <sam@ravnborg.org>, Steven Rostedt <rostedt@goodmis.org>, 
	Thomas Bogendoerfer <tsbogend@alpha.franken.de>, Thomas Gleixner <tglx@linutronix.de>, 
	Will Deacon <will@kernel.org>, bpf@vger.kernel.org, linux-arch@vger.kernel.org, 
	linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, 
	linux-mm@kvack.org, linux-modules@vger.kernel.org, 
	linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, 
	linux-s390@vger.kernel.org, linux-trace-kernel@vger.kernel.org, 
	linuxppc-dev@lists.ozlabs.org, loongarch@lists.linux.dev, 
	netdev@vger.kernel.org, sparclinux@vger.kernel.org, x86@kernel.org
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

On Fri, Apr 26, 2024 at 1:30=E2=80=AFAM Mike Rapoport <rppt@kernel.org> wro=
te:
>
> From: "Mike Rapoport (IBM)" <rppt@kernel.org>
>
> Several architectures override module_alloc() only to define address
> range for code allocations different than VMALLOC address space.
>
> Provide a generic implementation in execmem that uses the parameters for
> address space ranges, required alignment and page protections provided
> by architectures.
>
> The architectures must fill execmem_info structure and implement
> execmem_arch_setup() that returns a pointer to that structure. This way t=
he
> execmem initialization won't be called from every architecture, but rathe=
r
> from a central place, namely a core_initcall() in execmem.
>
> The execmem provides execmem_alloc() API that wraps __vmalloc_node_range(=
)
> with the parameters defined by the architectures.  If an architecture doe=
s
> not implement execmem_arch_setup(), execmem_alloc() will fall back to
> module_alloc().
>
> Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>

Acked-by: Song Liu <song@kernel.org>