From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7415DC83F09 for ; Wed, 9 Jul 2025 13:49:52 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 110C06B0116; Wed, 9 Jul 2025 09:49:52 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 0C1EA6B0118; Wed, 9 Jul 2025 09:49:52 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id EF2796B0119; Wed, 9 Jul 2025 09:49:51 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id DA4086B0116 for ; Wed, 9 Jul 2025 09:49:51 -0400 (EDT) Received: from smtpin11.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id A99E110A5E2 for ; Wed, 9 Jul 2025 13:49:51 +0000 (UTC) X-FDA: 83644859382.11.CB23E2A Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf16.hostedemail.com (Postfix) with ESMTP id 15CC2180008 for ; Wed, 9 Jul 2025 13:49:49 +0000 (UTC) Authentication-Results: imf16.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=Et5FV+0A; spf=pass (imf16.hostedemail.com: domain of rppt@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1752068990; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=+/PJzJRgOx92wC1oE9nsQSpPNj64N/k61pJKPgbG0bU=; b=NgR22B5ljBBz2wUKgoytHEFhuHeJRq9ZKMQcL2I6qXscAIygOZ2iLW/Migw5EnQT2wkfFi s2uPz4c5lizxwDNe1MO3nAHYuar6Ci0LiTHNvlIFGoS9VOwnCv7ATNRz0WSXVGgTmWzn9q oyylCencS/ysccJqMZdH96B6i69Y+Iw= ARC-Authentication-Results: i=1; imf16.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=Et5FV+0A; spf=pass (imf16.hostedemail.com: domain of rppt@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1752068990; a=rsa-sha256; cv=none; b=5pDytVST5wqIUtCWGsXLp9QVO6DV9S/7y9lQ3kDSi+l3+Rewb5RuvQRe0tGhpCiGtUV92g ikiUssv1D4jJnGJQsVlRERz2L5g7iGvPXvEg9WkgEPVXh8L2yHBu3w/ee0YfRIVYfCdD/d oRqIJzE4K2znHQZFIwdAYZJcJ1lyA68= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 2A3535C5649; Wed, 9 Jul 2025 13:49:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 45C13C4CEF4; Wed, 9 Jul 2025 13:49:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752068988; bh=vyVIGCtc0jVROOiaoRDc63+XloT/k7Y60usHpVt467Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Et5FV+0ADwZBa7ZC5uNEgDWPKMDofqqx7qOQ+s9lYbb3CMnSMy57OdiPDnvMQZsp2 taoKecEZFNt3sN8ocvrmnUxUWkrGSqJEg/cwERxPFEXwqlgabCSFkcbusjfZNSW6wM Z4kJZqYUnmJeT3hDhJHJf8hhTQhHHQH/0q9gC4HkyTqRRXI0h7Z7YabVox09Kt/lP+ Wkq+Vw4fPRRRUHU62XJXBnZy35KhN1qCwJBoThgf09DeMsPRDdgxrs2LIPYzUydNtE ECGyOPNuk+J7jM2WZ+cnmAlLbJBydE2lLzHspDLAltASfu73yweEhxkqbcxTAYjJN3 G51mACWMuXuVQ== From: Mike Rapoport To: Andrew Morton Cc: Andy Lutomirski , Borislav Petkov , Christophe Leroy , Daniel Gomez , Dave Hansen , Ingo Molnar , "Liam R. Howlett" , Luis Chamberlain , Mark Rutland , Masami Hiramatsu , Mike Rapoport , "H. Peter Anvin" , Peter Zijlstra , Petr Pavlu , Sami Tolvanen , Steven Rostedt , Thomas Gleixner , Yann Ylavic , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-modules@vger.kernel.org, linux-trace-kernel@vger.kernel.org, x86@kernel.org Subject: [PATCH v2 1/8] execmem: drop unused execmem_update_copy() Date: Wed, 9 Jul 2025 16:49:26 +0300 Message-ID: <20250709134933.3848895-2-rppt@kernel.org> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250709134933.3848895-1-rppt@kernel.org> References: <20250709134933.3848895-1-rppt@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Stat-Signature: botwhs999oauta4re7aaioxjqwhjs48k X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 15CC2180008 X-HE-Tag: 1752068989-28539 X-HE-Meta: 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 stWibQyh 9i1rIzam/UszmFA6l0qxi+h0hcFIBKHcn2Dzb9bhPuzr3SRxIdyqD08TBfn84q0LQmSr12Qw5eR3cnMtMbvGFqVWZflSy4qYWOwQ35/F4t/+5V6Rj2yDABBpIDztfmDGCWXuIw93DOXtZxBjpUljJJxzd3k0RD9RffgNH+n+PEyemU6GstAY7zHkINuxhAmX+L+HB/bKcKaZfy+fX1sczlRtfLt6UB5Jt5FT4eiIo7qe39as0yM2DsCI5KrJbVzcAZE4nA4f0lKHeyE524Mle9VtuBEjPvpnxgORQjM8xHh47Oy7ci+1zHJp+IGqgix9W7RxmXrqbL/P/4Y2Y36nphFpdV58eVObI7JjiZxX1mOEg3P2Psy4scWTUgOUCMlO6kndG 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: From: "Mike Rapoport (Microsoft)" The execmem_update_copy() that used text poking was required when memory allocated from ROX cache was always read-only. Since now its permissions can be switched to read-write there is no need in a function that updates memory with text poking. Remove it. Signed-off-by: Mike Rapoport (Microsoft) --- include/linux/execmem.h | 13 ------------- mm/execmem.c | 5 ----- 2 files changed, 18 deletions(-) diff --git a/include/linux/execmem.h b/include/linux/execmem.h index 3be35680a54f..734fbe83d98e 100644 --- a/include/linux/execmem.h +++ b/include/linux/execmem.h @@ -185,19 +185,6 @@ DEFINE_FREE(execmem, void *, if (_T) execmem_free(_T)); struct vm_struct *execmem_vmap(size_t size); #endif -/** - * execmem_update_copy - copy an update to executable memory - * @dst: destination address to update - * @src: source address containing the data - * @size: how many bytes of memory shold be copied - * - * Copy @size bytes from @src to @dst using text poking if the memory at - * @dst is read-only. - * - * Return: a pointer to @dst or NULL on error - */ -void *execmem_update_copy(void *dst, const void *src, size_t size); - /** * execmem_is_rox - check if execmem is read-only * @type - the execmem type to check diff --git a/mm/execmem.c b/mm/execmem.c index 2b683e7d864d..0712ebb4eb77 100644 --- a/mm/execmem.c +++ b/mm/execmem.c @@ -399,11 +399,6 @@ void execmem_free(void *ptr) vfree(ptr); } -void *execmem_update_copy(void *dst, const void *src, size_t size) -{ - return text_poke_copy(dst, src, size); -} - bool execmem_is_rox(enum execmem_type type) { return !!(execmem_info->ranges[type].flags & EXECMEM_ROX_CACHE); -- 2.47.2