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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 037CCC44501 for ; Tue, 14 Jul 2026 14:07:15 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4h01Mb4gNGz3c52; Wed, 15 Jul 2026 00:07:07 +1000 (AEST) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1784038027; cv=none; b=j/aYwztVdGBMsQzyyZ8DjgZEccNmtxHyxyGhwtCSGDgF8c6MYD5VmWnM9WUbSpejD21mVmb1XW1/ZDpd9oFTgavOBjMbydFRcC2eWfcs0lFSL64OCvr/cKwEoS23iUHiJ3VfjGqx7e0/689wX5R28hauaRa4rqt059KOBcu/RQFmNWJd8VVo2MPxBF7BwpGl7208D7X949YreIpXnZPqJkNMs0oI2E6j26/4iIDd5XjnEoaWPq9PpZdUZgoA3BD/Ow2bPLgxn2+Fx2PPrb4d14HzVFnaSXTyEfdWFq9HbQMtov5XV4vLwjXkcm3MelXz004lDLDbj1A+nKdmfyGajw== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1784038027; c=relaxed/relaxed; bh=iM8SB61kZfRlZBBjK1HisTzxprKerLF7NioQQq06LHM=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=mAvOIRKshGNSZs2AeW9SWgijR+l0s8tga+17wM8KcOoxtOjUpxqkZ2W5ixCuHRb4VAuaabXvYWpu+vqVKUD7OfHKSKVF/Mg5b7SIVIJF/CQN+kAJ/niqbM7q0MgfBDWlM2sqlMmiouVnhq7nqfnacZUiIlxffNKt9P+2Tc0zDP8Q2+nw92gWrl+ZoOBzHdvNB7lo94T+KpFAOsnVd9RjISSxxSaIDQoyKqdZe2FWYEjlL1WKGVNV1vLFnw64BvsTSvxguMdNsdE4Vvwx2zmLkhvvdRo/6JQXlRv0Q/Xlq7HgegjqdHtAGzli9CoNQirp1j/Q/hSts/nvHR888IEShw== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=arm.com; dkim=pass (1024-bit key; unprotected) header.d=arm.com header.i=@arm.com header.a=rsa-sha256 header.s=foss header.b=YzY9thwi; dkim-atps=neutral; spf=pass (client-ip=217.140.110.172; helo=foss.arm.com; envelope-from=kevin.brodsky@arm.com; receiver=lists.ozlabs.org) smtp.mailfrom=arm.com Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=arm.com header.i=@arm.com header.a=rsa-sha256 header.s=foss header.b=YzY9thwi; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=arm.com (client-ip=217.140.110.172; helo=foss.arm.com; envelope-from=kevin.brodsky@arm.com; receiver=lists.ozlabs.org) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lists.ozlabs.org (Postfix) with ESMTP id 4h01MZ4M3Wz3c4y for ; Wed, 15 Jul 2026 00:07:06 +1000 (AEST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id E8A9E1BF3; Tue, 14 Jul 2026 07:06:30 -0700 (PDT) Received: from localhost.localdomain (e123572-lin.cambridge.arm.com [10.2.208.46]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id BE3913F7B4; Tue, 14 Jul 2026 07:06:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1784037995; bh=brubU8ipNy1ujnPWOSJsU4D9Csfsl5oNxDWj3XnSBxg=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=YzY9thwiHc65wNiUxU67y6/tJ7ZmfWCBeoA2a4LNQMo0O7ibHK6ctA9ComeTUEm9C I/qi+0IpZSq41xPb+OZ7Z3/G4uCkw9cLd6IhSMUabwxmOQOqx2sF6D5jJAoetl8ck9 oA5zuyScXswzHCcI9ibhnX1aroPeO+YpvDY2p/3g= From: Kevin Brodsky Date: Tue, 14 Jul 2026 15:04:00 +0100 Subject: [PATCH 11/22] um: mm: use mm_is_kernel() in TLB sync X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260714-remove_pgtable_cdtor-v1-11-44be8a7685d7@arm.com> References: <20260714-remove_pgtable_cdtor-v1-0-44be8a7685d7@arm.com> In-Reply-To: <20260714-remove_pgtable_cdtor-v1-0-44be8a7685d7@arm.com> To: linux-mm@kvack.org Cc: Kevin Brodsky , Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Pasha Tatashin , Russell King , Catalin Marinas , Will Deacon , Ryan Roberts , linux-arm-kernel@lists.infradead.org, Huacai Chen , loongarch@lists.linux.dev, "James E.J. Bottomley" , Helge Deller , linux-parisc@vger.kernel.org, Madhavan Srinivasan , Michael Ellerman , linuxppc-dev@lists.ozlabs.org, Paul Walmsley , Palmer Dabbelt , Albert Ou , linux-riscv@lists.infradead.org, Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Gerald Schaefer , linux-s390@vger.kernel.org, "David S. Miller" , Andreas Larsson , sparclinux@vger.kernel.org, Richard Weinberger , Anton Ivanov , Johannes Berg , linux-um@lists.infradead.org, Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Andy Lutomirski , Peter Zijlstra , Ning Sun , x86@kernel.org, tboot-devel@lists.sourceforge.net, Ard Biesheuvel , Ilias Apalodimas , linux-efi@vger.kernel.org, Vishal Moola , Alistair Popple , "Matthew Wilcox (Oracle)" , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1784037902; l=784; i=kevin.brodsky@arm.com; s=20260427; h=from:subject:message-id; bh=brubU8ipNy1ujnPWOSJsU4D9Csfsl5oNxDWj3XnSBxg=; b=/PzTb9tRgc6q7ZO/WLmLmpzghLV5CdRWiA/u95e31NiKnKwzFm+3cKJU2/zrnT5S/P+reJB4V ezvWWMbftRCD/SWI9ofvYfumKl5AhLTyCVWAwhB/2VFq3mOJHXdgNVl X-Developer-Key: i=kevin.brodsky@arm.com; a=ed25519; pk=N2QG+eJKrvkNovwhhwJhnJ4+ScVfsGCHldmqLfcMTFs= The new MMF_KERNEL flag identifies kernel-owned mm's. Checking the flag with mm_is_kernel() is preferred over comparing directly against &init_mm. No functional change, as only init_mm has MMF_KERNEL set for now. Assisted-by: Codex:GPT-5.5 Signed-off-by: Kevin Brodsky --- arch/um/kernel/tlb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c index 1f175716b474..fa34a710203e 100644 --- a/arch/um/kernel/tlb.c +++ b/arch/um/kernel/tlb.c @@ -171,7 +171,7 @@ int um_tlb_sync(struct mm_struct *mm) return 0; ops.mm_idp = &mm->context.id; - if (mm == &init_mm) { + if (mm_is_kernel(mm)) { ops.mmap = kern_map; ops.unmap = kern_unmap; } else { -- 2.51.2