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From: Christoph Hellwig <hch@infradead•org>
To: Mike Rapoport <rppt@kernel•org>
Cc: Andrew Morton <akpm@linux-foundation•org>,
	Andreas Larsson <andreas@gaisler•com>,
	Andy Lutomirski <luto@kernel•org>,
	Ard Biesheuvel <ardb@kernel•org>, Arnd Bergmann <arnd@arndb•de>,
	Borislav Petkov <bp@alien8•de>, Brian Cain <bcain@quicinc•com>,
	Catalin Marinas <catalin.marinas@arm•com>,
	Christoph Hellwig <hch@infradead•org>,
	Christophe Leroy <christophe.leroy@csgroup•eu>,
	Dave Hansen <dave.hansen@linux•intel.com>,
	Dinh Nguyen <dinguyen@kernel•org>,
	Geert Uytterhoeven <geert@linux-m68k•org>,
	Guo Ren <guoren@kernel•org>, Helge Deller <deller@gmx•de>,
	Huacai Chen <chenhuacai@kernel•org>,
	Ingo Molnar <mingo@redhat•com>,
	Johannes Berg <johannes@sipsolutions•net>,
	John Paul Adrian Glaubitz <glaubitz@physik•fu-berlin.de>,
	Kent Overstreet <kent.overstreet@linux•dev>,
	"Liam R. Howlett" <Liam.Howlett@oracle•com>,
	Luis Chamberlain <mcgrof@kernel•org>,
	Mark Rutland <mark.rutland@arm•com>,
	Masami Hiramatsu <mhiramat@kernel•org>,
	Matt Turner <mattst88@gmail•com>,
	Max Filippov <jcmvbkbc@gmail•com>,
	Michael Ellerman <mpe@ellerman•id.au>,
	Michal Simek <monstr@monstr•eu>, Oleg Nesterov <oleg@redhat•com>,
	Palmer Dabbelt <palmer@dabbelt•com>,
	Peter Zijlstra <peterz@infradead•org>,
	Richard Weinberger <richard@nod•at>,
	Russell King <linux@armlinux•org.uk>, Song Liu <song@kernel•org>,
	Stafford Horne <shorne@gmail•com>,
	Steven Rostedt <rostedt@goodmis•org>,
	Thomas Bogendoerfer <tsbogend@alpha•franken.de>,
	Thomas Gleixner <tglx@linutronix•de>,
	Uladzislau Rezki <urezki@gmail•com>,
	Vineet Gupta <vgupta@kernel•org>, Will Deacon <will@kernel•org>,
	bpf@vger•kernel.org, linux-alpha@vger•kernel.org,
	linux-arch@vger•kernel.org, linux-arm-kernel@lists•infradead.org,
	linux-csky@vger•kernel.org, linux-hexagon@vger•kernel.org,
	linux-kernel@vger•kernel.org, linux-m68k@lists•linux-m68k.org,
	linux-mips@vger•kernel.org, linux-mm@kvack•org,
	linux-modules@vger•kernel.org, linux-openrisc@vger•kernel.org,
	linux-parisc@vger•kernel.org, linux-riscv@lists•infradead.org,
	linux-sh@vger•kernel.org, linux-snps-arc@lists•infradead.org,
	linux-trace-kernel@vger•kernel.org, linux-um@lists•infradead.org,
	linuxppc-dev@lists•ozlabs.org, loongarch@lists•linux.dev,
	sparclinux@vger•kernel.org, x86@kernel•org
Subject: Re: [PATCH v5 7/8] execmem: add support for cache of large ROX pages
Date: Wed, 9 Oct 2024 23:58:33 -0700	[thread overview]
Message-ID: <Zwd7GRyBtCwiAv1v@infradead.org> (raw)
In-Reply-To: <20241009180816.83591-8-rppt@kernel.org>

On Wed, Oct 09, 2024 at 09:08:15PM +0300, Mike Rapoport wrote:
>  /**
>   * struct execmem_info - architecture parameters for code allocations
> + * @fill_trapping_insns: set memory to contain instructions that will trap
>   * @ranges: array of parameter sets defining architecture specific
>   * parameters for executable memory allocations. The ranges that are not
>   * explicitly initialized by an architecture use parameters defined for
>   * @EXECMEM_DEFAULT.
>   */
>  struct execmem_info {
> +	void (*fill_trapping_insns)(void *ptr, size_t size, bool writable);
>  	struct execmem_range	ranges[EXECMEM_TYPE_MAX];

Why is the filler an indirect function call and not an architecture
hook?



  parent reply	other threads:[~2024-10-10  6:58 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-09 18:08 [PATCH v5 0/8] x86/module: use large ROX pages for text allocations Mike Rapoport
2024-10-09 18:08 ` [PATCH v5 1/8] mm: vmalloc: group declarations depending on CONFIG_MMU together Mike Rapoport
2024-10-10  6:54   ` Christoph Hellwig
2024-10-09 18:08 ` [PATCH v5 2/8] mm: vmalloc: don't account for number of nodes for HUGE_VMAP allocations Mike Rapoport
2024-10-10  6:54   ` Christoph Hellwig
2024-10-09 18:08 ` [PATCH v5 3/8] asm-generic: introduce text-patching.h Mike Rapoport
2024-10-10  6:55   ` Christoph Hellwig
2024-10-10  7:22   ` Geert Uytterhoeven
2024-10-10  8:04   ` Arnd Bergmann
2024-10-09 18:08 ` [PATCH v5 4/8] module: prepare to handle ROX allocations for text Mike Rapoport
2024-10-09 22:23   ` Song Liu
2024-10-10  5:43     ` Mike Rapoport
2024-10-10 17:18       ` Song Liu
2024-10-09 18:08 ` [PATCH v5 5/8] arch: introduce set_direct_map_valid_noflush() Mike Rapoport
2024-10-10  6:56   ` Christoph Hellwig
2024-10-09 18:08 ` [PATCH v5 6/8] x86/module: perpare module loading for ROX allocations of text Mike Rapoport
2024-10-10  6:57   ` Christoph Hellwig
2024-10-10 22:54   ` Nathan Chancellor
2024-10-11 12:58     ` Mike Rapoport
2024-10-15  8:29       ` Nathan Chancellor
2024-10-09 18:08 ` [PATCH v5 7/8] execmem: add support for cache of large ROX pages Mike Rapoport
2024-10-09 20:24   ` Andrew Morton
2024-10-10  9:29     ` Mike Rapoport
2024-10-10  6:58   ` Christoph Hellwig [this message]
2024-10-10 12:57     ` Mike Rapoport
2024-10-11  7:46       ` Christoph Hellwig
2024-10-13  8:43         ` Mike Rapoport
2024-10-14  3:26           ` Andrew Morton
2024-10-14 19:16             ` Luis Chamberlain
2024-10-15  4:09               ` Luis Chamberlain
2024-10-15  5:54                 ` Mike Rapoport
2024-10-15 20:11                   ` Luis Chamberlain
2024-10-16 10:40                     ` Mike Rapoport
2024-10-16 23:58                       ` Luis Chamberlain
2024-10-14  5:55           ` Christoph Hellwig
2024-10-14 13:07             ` Mike Rapoport
2024-10-10 18:35   ` Kees Bakker
2024-10-09 18:08 ` [PATCH v5 8/8] x86/module: enable ROX caches for module text Mike Rapoport
2024-10-10  8:30   ` Bisected: " Sergey Senozhatsky
2024-10-10 15:20     ` Mike Rapoport

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