linux-kernel - Re: [PATCH v2 0/8] x86: enable EXECMEM_ROX

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Message-ID: <20250710111846.GE542000@noisy.programming.kicks-ass.net>
Date: Thu, 10 Jul 2025 13:18:46 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: Mike Rapoport <rppt@...nel.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
	Andy Lutomirski <luto@...nel.org>, Borislav Petkov <bp@...en8.de>,
	Christophe Leroy <christophe.leroy@...roup.eu>,
	Daniel Gomez <da.gomez@...sung.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Ingo Molnar <mingo@...hat.com>,
	"Liam R. Howlett" <Liam.Howlett@...cle.com>,
	Luis Chamberlain <mcgrof@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	"H. Peter Anvin" <hpa@...or.com>, Petr Pavlu <petr.pavlu@...e.com>,
	Sami Tolvanen <samitolvanen@...gle.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Yann Ylavic <ylavic.dev@...il.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, linux-modules@...r.kernel.org,
	linux-trace-kernel@...r.kernel.org, x86@...nel.org
Subject: Re: [PATCH v2 0/8] x86: enable EXECMEM_ROX_CACHE for ftrace and
 kprobes

On Wed, Jul 09, 2025 at 04:49:25PM +0300, Mike Rapoport wrote:

> Mike Rapoport (Microsoft) (8):
>   execmem: drop unused execmem_update_copy()
>   execmem: introduce execmem_alloc_rw()
>   execmem: rework execmem_cache_free()
>   execmem: move execmem_force_rw() and execmem_restore_rox() before use
>   execmem: add fallback for failures in vmalloc(VM_ALLOW_HUGE_VMAP)
>   execmem: drop writable parameter from execmem_fill_trapping_insns()
>   x86/kprobes: enable EXECMEM_ROX_CACHE for kprobes allocations
>   x86/ftrace: enable EXECMEM_ROX_CACHE for ftrace allocations

Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>