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Howlett" , Luis Chamberlain , Mark Rutland , Masami Hiramatsu , Matt Turner , Max Filippov , Michael Ellerman , Michal Simek , Oleg Nesterov , Palmer Dabbelt , Peter Zijlstra , Richard Weinberger , Russell King , Song Liu , Stafford Horne , Steven Rostedt , Thomas Bogendoerfer , Thomas Gleixner , Uladzislau Rezki , Vineet Gupta , Will Deacon , 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 Message-ID: References: <20241009180816.83591-1-rppt@kernel.org> <20241009180816.83591-8-rppt@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20241009180816.83591-8-rppt@kernel.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-Rspam-User: X-Stat-Signature: shwf18dh7ugb3jxmy96dxqu1jh6cto3q X-Rspamd-Queue-Id: E3B1A100005 X-Rspamd-Server: rspam02 X-HE-Tag: 1728543526-601639 X-HE-Meta: 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 vn24s9df gOJNr+GuHuWda1jC97DI/+/e9xBRdUwiW8LRIqgi64OWxXE1dWS/GxpY1U0JgMPARkKGBXhkHciQa4VVZUvX6KTzeVk0EyV376xS6H/r7UishDUQduy7ELxvIQS95RV+DkNwZP5KVzrlQx35fspBuYQY0UCVVNJbYQZLGO3ibnaHeAgsVG+sw7072xgHmgzFX/PtObAjEtWurPnOWvJJiX+6TqjplGBgzlT9k58a4Gdw8dCjN8DpsctefwL+sk+Wbvb08shujhSlbuIaimhkQU1x/aU39SKwNhI7egkbName03jHhOJzMuCV0nsurHpVXPFfvxjGlyBW0OTU7kDuenalyC0fLXXOUrFUF1q/8/s0B66hj2PUfiDkdjTD8CmUVw7ggRFHk5LI2aJ5PpfdnkewW75o5QP435rHcwRB7F7vT8lp96t11ljWP/AIhurOvk07Vqk5rOxqz9bRbOJf3ya4CWi6F7a7jvim6 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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?