From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D2E49421251 for ; Fri, 9 Oct 2026 05:59:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791525578; cv=none; b=rNkb7OKDDwpvNZxz3/DHxs7BNX4OUSsHDTFoFL/KVEpZI6zb5mCQu4pLZVgz5dvpXKCy/NiyvlnYIb8a0U+MGXnqIuig3P7FlcVbstVi8SbMueF85VfDKOMndR3HCT0qFZ/n1h8xTtJD1IeLoChSno8IvSQzegbErNcEZIq6hPo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791525578; c=relaxed/simple; bh=Q3PpHSX9RhYiTXRFCWTUe+WV+2BPs8WHTz1ifRV5flo=; h=Date:To:From:Subject:Message-Id; b=j8fjV4auIbrtoFm/g5kMzkGWzxoecFE+cIMiEc3PJHCxVFqKyRIJ8d32dhNaS5QiI4RcutaW7GXvBMzIt3UWUNNhogEuqhkgJEil664czE6VP9OlEx5JKAHP5ZalcDIQjDYTihNV/MObbnju+GtSyNBoaPBeshU8hEGs7BjB7VQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=oGXMljOw; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="oGXMljOw" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 14B0B1F00898; Fri, 9 Oct 2026 05:59:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1791525574; bh=cIetXi+BlaXaVjlDi7MzvO79b4XCr9GUduxPgCz9uPs=; h=Date:To:From:Subject; b=oGXMljOwenT4GEfHM1Wg0kr74U1ZSjhtcfjhLDPj17ni9RQwcFnxFthDmfA8CtgGc DAbYLn2PeRTnRz+DKAIzwHQEfYtSiz5r83h1gcQNVtNFsvEqCmoqPZZwVymzbOl0T2 D+dshUeKNO3YFk1Mt8hZwcZH8wKG7SnE7k+tGSqk= Date: Thu, 08 Oct 2026 22:59:33 -0700 To: mm-commits@vger.kernel.org,sstabellini@kernel.org,oleksandr_tyshchenko@epam.com,jgross@suse.com,david@kernel.org,ziy@nvidia.com,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] xen-grant-table-stop-setting-pg_private-on-pages-for-grant-mapping.patch removed from -mm tree Message-Id: <20261009055934.14B0B1F00898@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: xen/grant-table: stop setting PG_private on pages for grant mapping has been removed from the -mm tree. Its filename was xen-grant-table-stop-setting-pg_private-on-pages-for-grant-mapping.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Zi Yan Subject: xen/grant-table: stop setting PG_private on pages for grant mapping Date: Sun, 20 Sep 2026 22:27:59 -0400 gnttab_alloc_pages() stores xen_page_foreign in page->private. On 32-bit, a pointer to an allocated xen_page_foreign is stored; on 64-bit, xen_page_forCcgn is stored inline. Checking page->private != NULL is enough to tell whether a xen_page_foreign needs to be freed on 32-bit and page->private is zeroed unconditionally on 64-bit. It prepares for a future commit that remove PG_private. No functional change intended. Link: https://lore.kernel.org/20260920-remove-pg_private-v5-3-bb68b6a21869@nvidia.com Signed-off-by: Zi Yan Signed-off-by: Andrew Morton Reviewed-by: David Hildenbrand (Arm) Assisted-by: LLM Cc: Juergen Gross Cc: Stefano Stabellini Cc: Oleksandr Tyshchenko --- drivers/xen/grant-table.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) --- a/drivers/xen/grant-table.c~xen-grant-table-stop-setting-pg_private-on-pages-for-grant-mapping +++ a/drivers/xen/grant-table.c @@ -863,10 +863,10 @@ EXPORT_SYMBOL_GPL(gnttab_free_auto_xlat_ int gnttab_pages_set_private(int nr_pages, struct page **pages) { +#if BITS_PER_LONG < 64 int i; for (i = 0; i < nr_pages; i++) { -#if BITS_PER_LONG < 64 struct xen_page_foreign *foreign; foreign = kzalloc_obj(*foreign); @@ -874,9 +874,9 @@ int gnttab_pages_set_private(int nr_page return -ENOMEM; set_page_private(pages[i], (unsigned long)foreign); -#endif - SetPagePrivate(pages[i]); } +#endif + /* Data is stored in page->private on 64-bit */ return 0; } @@ -1031,12 +1031,11 @@ void gnttab_pages_clear_private(int nr_p int i; for (i = 0; i < nr_pages; i++) { - if (PagePrivate(pages[i])) { #if BITS_PER_LONG < 64 + if (page_private(pages[i])) kfree((void *)page_private(pages[i])); #endif - ClearPagePrivate(pages[i]); - } + set_page_private(pages[i], 0); } } EXPORT_SYMBOL_GPL(gnttab_pages_clear_private); _ Patches currently in -mm which might be from ziy@nvidia.com are