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 C25D1C83F1D for ; Sun, 13 Jul 2025 07:17:50 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 3BEC36B008C; Sun, 13 Jul 2025 03:17:50 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 36F676B0092; Sun, 13 Jul 2025 03:17:50 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 285946B0093; Sun, 13 Jul 2025 03:17:50 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 172396B008C for ; Sun, 13 Jul 2025 03:17:50 -0400 (EDT) Received: from smtpin21.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 8BD0AC031B for ; Sun, 13 Jul 2025 07:17:49 +0000 (UTC) X-FDA: 83658386658.21.6E2D0C8 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf09.hostedemail.com (Postfix) with ESMTP id DD85D140010 for ; Sun, 13 Jul 2025 07:17:47 +0000 (UTC) Authentication-Results: imf09.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=ffjn4N7L; spf=pass (imf09.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=1752391067; 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=bFTIzt5zmteNerk6L6ly6Qxgf2ycrnBe1+Z3SRq42wo=; b=2UNGuexFK0lWids/ru1KzWF10OBKpCacKEouxTysHYzZpqoyoS8Wl9hMGasAdFVj0JvUEL 1b0pZ2gQ2njFKAaB0hxeNZCNwvrHfEITz+Bh19WUmD3tLPFA3EiFJJYhEbhIr9skD9rW1q 9KRWduW3NgAYnVhv3Pa4JiPLcCo/FAo= ARC-Authentication-Results: i=1; imf09.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=ffjn4N7L; spf=pass (imf09.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=1752391068; a=rsa-sha256; cv=none; b=V7jiQTw4u6S79sHdi+xxQixXeuGh5hH5ZOhne0zkyeIjuQXJR7ZuvyRMe4TEY8rzS+AyTT SJfYOW1zbIhyXYTwD775vTl/W4FcfUsEe9jws28KmsOnoJPUEuWz12E0CLGEhgHre5PpI4 eHGkocZJMR6pN2OObZ7wvnvBCxeAKaI= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id AFB785C5561; Sun, 13 Jul 2025 07:17:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A8B10C4CEF5; Sun, 13 Jul 2025 07:17:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752391066; bh=P4fHP9UFyAr3Scf7HStnOCqWcHWXOAR5PCL9m8hSZVE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ffjn4N7LSxiD9F/zVzjTT8+NJhOcazHVy9FHNuKWp5JVdcf2dF29EBCJYEoqX27Jj CVGHuLbuTrj8XmzGaDcaVMFUihPaBebeM7T8yhV9ZItqEf7Fw6JovzMVIoNKL9BxJ5 bFL7jtV0VHZgCmZS1WG/HHhQOwp1UBFYngSGfAzMIlEaMqPLJAOPFsZBw19mVFOFQM 3TzOT02U5r2/lypPzC287BLucq7AC/bJIncxrGAGbgFnQ04ROTH4bZ+zp9RYJK2OTY 2rRZFvZbwfqAnEGaelbjVbn9v95V9YrnNXMqM2u7t8MS4DW1BprMc/pjgBuXbY1vdb JhyVpYKOAy7WA== 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 v3 1/8] execmem: drop unused execmem_update_copy() Date: Sun, 13 Jul 2025 10:17:23 +0300 Message-ID: <20250713071730.4117334-2-rppt@kernel.org> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250713071730.4117334-1-rppt@kernel.org> References: <20250713071730.4117334-1-rppt@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: dacfke3se5zhxe3p1r69qsok9xm8bxuh X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: DD85D140010 X-Rspam-User: X-HE-Tag: 1752391067-502650 X-HE-Meta: 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 yOQ9nBCy 22fI26b7YY5raWBIzcOVdXDGzvvO54YvDSgjkBAoFL5qk49tr6smHT1C0L7neMceHyf1c6dtL0Y1QOSUX3HqDSFceUVcgpHbqiyra4wgrQGZ4J+HIzRIbtTrkP0OQjp1pfkorcBG5NOfrKQb2mxvfkst8lLcPVKEEBFcPUd1j4KbuSUc2SY/cJlueEdhRzqsGxqGeULWdIudn1KocE51dbBrXlhVin36uyu8X+2Wrh7Afr/bhENtXrx8bqiA7YCCJxPDhh3SCkFH4nsP7IB139JrtXKd9DpRianH+CEBzkFOtlPddW4RugxbR44IDr8CmsLXa8KLCAxCj3V3elfBH0Y6wPd2XbObw1W5NohgYUJpRTpBrR8d4y9qUx45ttjCYtHapRzbhcmcMf5nUBrH3ui5P94rMcHzfoH2ZOkfTw4wiCKy2IqEx3ycLR74AERIErk02 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. Acked-by: Peter Zijlstra (Intel) 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