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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 992AFC44508 for ; Tue, 14 Jul 2026 14:06:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=iM8SB61kZfRlZBBjK1HisTzxprKerLF7NioQQq06LHM=; b=ickNHxnJXguWAa9UGwBXqua6/0 yLhndNWGfmopEzzjaMTsCWA7eFdSJMSdsIpl1BIiJp+BUVgRhfe8mHh9H/90rAPR+JouQjTYDP5sW vSObBBJsf6Gk0tVnaGAS2K1730FMPVMRH7FAyeczoj3byuIOTvXzPucOVYI+8b6HrxYLbzdkiDJ71 lzH89nV9wLcZdKci6jeWru2/gHmFpuFJFLuR0OaFh4YIY8q6HS3wHHOwgb54/FcGbuU/CLw1J6lBy bl+fa4rt8xLKJLaswCpBzgTEf1OZXml+AIzekYNshfU67ws4sXHhVdps4FN3kwq/hPFsDtDSGKQYa ZV3YNAlA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wjdmU-0000000CIqR-0x5x; Tue, 14 Jul 2026 14:06:42 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wjdmR-0000000CInl-2UaQ; Tue, 14 Jul 2026 14:06:39 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Cc:To:In-Reply-To:References: Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Sender:Reply-To:Content-ID:Content-Description; bh=iM8SB61kZfRlZBBjK1HisTzxprKerLF7NioQQq06LHM=; b=F5dPx4DZ8KWGAP6dnhc9pQlmfr uONk3NteFAlwHdUvvWGXFAJ7DCLPuhRnP5Ymg9upGOOJfdi9FwygTtUzNs6guDHdun6gLQ4XG8jdw U7WY4GhEYQmTls007Ik0cB0cfXRJ4vgXuA/GtqA60W5JHunJgMFcRCfI5pzE9iXrkHvF1dFIyjpep tp7033QnJTSRi9DNkAL+7SbM8StPWS/BiodGW9W8boT5UzqYhQD3Cv+dl8GbGVKfQ90Glonmd43Wm CzLgYiys0Er9INeuVB65HcPX9TVNgGdHFAaWIwOq/EOnq/roBgiCOkjX7i+K1h+IzlMXxhV6WS1FT ZJdJuIRA==; Received: from foss.arm.com ([217.140.110.172]) by desiato.infradead.org with esmtp (Exim 4.99.2 #2 (Red Hat Linux)) id 1wjdmO-0000000CZ9y-3DTM; Tue, 14 Jul 2026 14:06:38 +0000 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 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= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260714_150637_080013_9D76E52E X-CRM114-Status: GOOD ( 12.57 ) X-BeenThere: linux-um@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-um" Errors-To: linux-um-bounces+linux-um=archiver.kernel.org@lists.infradead.org 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