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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DA88CC0015E for ; Thu, 27 Jul 2023 17:12:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232252AbjG0RMV (ORCPT ); Thu, 27 Jul 2023 13:12:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44566 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232311AbjG0RMK (ORCPT ); Thu, 27 Jul 2023 13:12:10 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 25EA02727 for ; Thu, 27 Jul 2023 10:12:07 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 8073D61EEE for ; Thu, 27 Jul 2023 17:12:06 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D3FEFC433C8; Thu, 27 Jul 2023 17:12:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1690477925; bh=Y+Hy06G8HntKtOWbB5ezlmmcRCiHVTfqPgtX+Lc58L8=; h=Date:To:From:Subject:From; b=TwcGdQmoiy+PZ4qT4PwPjyYAU3fWZZDtABtf1zwQmrT/7QESgR47OQAKWnd5khluu sXxQdPGQEUHgwzwfbXRtI4lQlqmAzDAicUPY5cBI8bxgw1dMB/ifGsSEcViz0WJVcA r9op5ZRLw2j53SoMKHUdACJa35meK4f302XZ6l9U= Date: Thu, 27 Jul 2023 10:12:03 -0700 To: mm-commits@vger.kernel.org, wangkefeng.wang@huawei.com, sunnanyong@huawei.com, glider@google.com, elver@google.com, dvyukov@google.com, zhangpeng362@huawei.com, akpm@linux-foundation.org From: Andrew Morton Subject: + mm-kmsan-use-helper-macro-offset_in_page.patch added to mm-unstable branch Message-Id: <20230727171205.D3FEFC433C8@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: mm: kmsan: use helper macro offset_in_page() has been added to the -mm mm-unstable branch. Its filename is mm-kmsan-use-helper-macro-offset_in_page.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-kmsan-use-helper-macro-offset_in_page.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: ZhangPeng Subject: mm: kmsan: use helper macro offset_in_page() Date: Thu, 27 Jul 2023 09:16:11 +0800 Use helper macro offset_in_page() to improve code readability. No functional modification involved. Link: https://lkml.kernel.org/r/20230727011612.2721843-3-zhangpeng362@huawei.com Signed-off-by: ZhangPeng Cc: Alexander Potapenko Cc: Dmitry Vyukov Cc: Kefeng Wang Cc: Marco Elver Cc: Nanyong Sun Signed-off-by: Andrew Morton --- mm/kmsan/hooks.c | 2 +- mm/kmsan/shadow.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) --- a/mm/kmsan/hooks.c~mm-kmsan-use-helper-macro-offset_in_page +++ a/mm/kmsan/hooks.c @@ -339,7 +339,7 @@ void kmsan_handle_dma(struct page *page, * internal KMSAN checks. */ while (size > 0) { - page_offset = addr % PAGE_SIZE; + page_offset = offset_in_page(addr); to_go = min(PAGE_SIZE - page_offset, (u64)size); kmsan_handle_dma_page((void *)addr, to_go, dir); addr += to_go; --- a/mm/kmsan/shadow.c~mm-kmsan-use-helper-macro-offset_in_page +++ a/mm/kmsan/shadow.c @@ -145,7 +145,7 @@ void *kmsan_get_metadata(void *address, return NULL; if (!page_has_metadata(page)) return NULL; - off = addr % PAGE_SIZE; + off = offset_in_page(addr); return (is_origin ? origin_ptr_for(page) : shadow_ptr_for(page)) + off; } _ Patches currently in -mm which might be from zhangpeng362@huawei.com are mm-use-a-folio-in-fault_dirty_shared_page.patch mm-remove-page_rmapping.patch mm-page_io-remove-unneeded-clearpageuptodate.patch mm-page_io-remove-unneeded-setpageerror.patch mm-page_io-introduce-bio_first_folio_all.patch mm-page_io-use-a-folio-in-__end_swap_bio_write.patch mm-page_io-use-a-folio-in-__end_swap_bio_read.patch mm-page_io-use-a-folio-in-sio_read_complete.patch mm-page_io-use-a-folio-in-swap_writepage_bdev_sync.patch mm-page_io-use-a-folio-in-swap_writepage_bdev_async.patch mm-page_io-convert-count_swpout_vm_event-to-take-in-a-folio.patch mm-page_io-convert-bio_associate_blkg_from_page-to-take-in-a-folio.patch mm-kmsan-use-helper-function-page_size.patch mm-kmsan-use-helper-macro-offset_in_page.patch mm-kmsan-use-helper-macros-page_align-and-page_align_down.patch