From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 30BD83C09E7; Thu, 4 Jun 2026 05:53:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780552414; cv=none; b=DyadF10S4i5aU637RBMeBtxmgl0r2CxR3S/xoI9IIvdvchi7v3EMK9BOuIgM65FbSxsuVtLySBlUdKuRpAxZW1UkwbQpHu601tEAHIm17y86aOqyFPl03Ybs4mnE1xeimvM4RFjUpay/i1Pc94BEix08U3iSiAGao9ymkY0UBxc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780552414; c=relaxed/simple; bh=fr1ZIAKStZBd1psxptXiTd8a10xNZESCVeJoWx72PSo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=XkbevvxICrzGKH1pjx4C+yMbxOIQWZuo4yMN8DG4qllyxa4G8R4Vt4icX3hy5rqujSGQEZ9MVWvw7v3RhcobGV9r4GLP6SIO9O0XwoAn7/6efPCVTtrOFCnn4+sj6vw5/TAEu7dEHk0ZgYFssriehtFvSFeSE43WwwEd0mgDPO8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b=MSn4AOul; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b="MSn4AOul" 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 8B4C53161; Wed, 3 Jun 2026 22:53:26 -0700 (PDT) Received: from cesw-amp-gbt-1s-m12830-01.blr.arm.com (cesw-amp-gbt-1s-m12830-01.blr.arm.com [10.164.195.31]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 690073F632; Wed, 3 Jun 2026 22:53:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1780552411; bh=fr1ZIAKStZBd1psxptXiTd8a10xNZESCVeJoWx72PSo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MSn4AOuln+fZ2CVLJ6oX5bcQMRbDlPvZYZoMQ4eHlTUvTMK5Np1lmbcTk7jobKzHN 8ZftqXvWi5eO40qEL1SBCbcQqQZp8q8oAIv94LeQHM8Tev4qI9i3B0EsWM57JtrJmA QKoxqVtIl2Z5nGJo+44H7uVSc+cVItHrU+DAlwn0= From: Dev Jain To: akpm@linux-foundation.org, liam@infradead.org, ljs@kernel.org, jgg@ziepe.ca, leon@kernel.org, david@kernel.org, shuah@kernel.org Cc: Dev Jain , vbabka@kernel.org, jannh@google.com, pfalcato@suse.de, balbirs@nvidia.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, rppt@kernel.org, surenb@google.com, mhocko@suse.com, linux-kselftest@vger.kernel.org, ryan.roberts@arm.com, anshuman.khandual@arm.com, usama.arif@linux.dev, stable@vger.kernel.org, Oscar Salvador Subject: [PATCH v3 1/2] fs/proc/task_mmu: do not warn on seeing non-migration pmd entry Date: Thu, 4 Jun 2026 05:53:05 +0000 Message-ID: <20260604055308.1947679-2-dev.jain@arm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260604055308.1947679-1-dev.jain@arm.com> References: <20260604055308.1947679-1-dev.jain@arm.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit pagemap_pmd_range_thp() warns if a non-present PMD is not a migration entry. This became false once device-private entries at the PMD level were added. Therefore, remove the stale migration-only assertion. Fixes: a30b48bf1b24 ("mm/migrate_device: implement THP migration of zone device pages") Cc: stable@vger.kernel.org Reviewed-by: Balbir Singh Reviewed-by: Lorenzo Stoakes Tested-by: Lorenzo Stoakes Acked-by: David Hildenbrand (Arm) Reviewed-by: Oscar Salvador (SUSE) Signed-off-by: Dev Jain --- fs/proc/task_mmu.c | 1 - 1 file changed, 1 deletion(-) diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 1e3a15bf46f4e..58938e62154d9 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -2129,7 +2129,6 @@ static int pagemap_pmd_range_thp(pmd_t *pmdp, unsigned long addr, flags |= PM_SOFT_DIRTY; if (pmd_swp_uffd_wp(pmd)) flags |= PM_UFFD_WP; - VM_WARN_ON_ONCE(!pmd_is_migration_entry(pmd)); page = softleaf_to_page(entry); } -- 2.43.0