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 7E57E39A05D; Sat, 30 May 2026 08:54:36 +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=1780131279; cv=none; b=nYvwvDxAPVSlieWPPLauWKyal0jz9DFsiUYif2DfHgnA7XqGd56yHONwsdj3kv8hzGUo/OirodFKDCQD75yDG+2CCd6rufdnDnhbWl+VrkhZ7uqWe1MusuSiHRhz9Ts8m9+n9amgeyQ/1zoPE2+Z2hjbnSLKY0FCBNhUjbOEYDo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780131279; c=relaxed/simple; bh=Ak9G3LTYza/gCy6/RFFf4a29T76eDF8ntJacgmiggGk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Qup9hRTBD4mYECK8NcgvOsSqOeC9TwZAKPv+1leoNeLuT0v9ODqtSR2MQdNVb77KjyL9qc4860BaFfvdaeeQ9XItrghr/DkJ6K6K6dU1zeDx/aGoz47JN1zRBYtmt6IrCv9WEq4CFkdUTbuxJawkCbKCztiW0L8dfaCV1FVVxVA= 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=Yx5bwhs8; 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="Yx5bwhs8" 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 90C393515; Sat, 30 May 2026 01:54:30 -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 D82313F632; Sat, 30 May 2026 01:54:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1780131275; bh=Ak9G3LTYza/gCy6/RFFf4a29T76eDF8ntJacgmiggGk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Yx5bwhs8LeClLHtnd2KjyEtflEV4UCKNY1KLqTIVI/VHD2zmhNBQws0EmMy3+WBNB RrwSVqyNK6yixYPKWJxweGMVpyLn80RLYlqSs3KxYBFOgoW6Py1NmRdlgSimr8fX/A HoxuImJ3uvdr0xRxe/Uu8zZ1uf9ERKn/vV573SjA= 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, usama.arif@linux.dev, ryan.roberts@arm.com, anshuman.khandual@arm.com, stable@vger.kernel.org Subject: [PATCH v2 1/2] fs/proc/task_mmu: do not warn on seeing non-migration pmd entry Date: Sat, 30 May 2026 08:54:11 +0000 Message-ID: <20260530085413.1270139-2-dev.jain@arm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260530085413.1270139-1-dev.jain@arm.com> References: <20260530085413.1270139-1-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 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