From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from dggsgout12.his.huawei.com (dggsgout12.his.huawei.com [45.249.212.56]) (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 B0049275848; Thu, 16 Apr 2026 03:50:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.56 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776311439; cv=none; b=OArOeCYO7f91hkkapdK0bnp46at0uegF9/FLUEs287ZnAbjmNK9W4J52Ca0RvkbqwfhaXvVGXGXRiPSoEDSY6LdSp7HnSCpSEPD2U724qX0/WsQCeEgtO0TMqjp1/EAnXjYl6HtuDMpPL1qE9C0K9YjYmFrlIcLAlNPmjjFUJuA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776311439; c=relaxed/simple; bh=rD2fWQvdg/F2u+50KxXMNBUcbeTl14dCNNXq75KL8ks=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=NiyPyb9yTDJCm1Pncz/49VKVfq62tDn3DYbafzpkMWjwp9nMIup6eUDMTIkZ6hn9MvFodNNyKNogJBaJUGiFJU8n3OKYgEVUWmHP2FyFNfrkAl2rRflG7gMRItKb2frii/1JMm5QscqHG8ENAySQAg0jSOc2b+9R3LC5g6GFw+k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com; spf=pass smtp.mailfrom=huaweicloud.com; arc=none smtp.client-ip=45.249.212.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huaweicloud.com Received: from mail.maildlp.com (unknown [172.19.163.170]) by dggsgout12.his.huawei.com (SkyGuard) with ESMTPS id 4fx3tw2Ql3zKHMKJ; Thu, 16 Apr 2026 11:50:16 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.252]) by mail.maildlp.com (Postfix) with ESMTP id 0947A4056E; Thu, 16 Apr 2026 11:50:27 +0800 (CST) Received: from huaweicloud.com (unknown [10.50.87.129]) by APP3 (Coremail) with SMTP id _Ch0CgCHM72BXOBpn95JAg--.61021S4; Thu, 16 Apr 2026 11:50:26 +0800 (CST) From: linan666@huaweicloud.com To: song@kernel.org, yukuai@fnnas.com Cc: linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org, linan666@huaweicloud.com, yangerkun@huawei.com, yi.zhang@huawei.com Subject: [PATCH v3 0/8] folio support for sync I/O in RAID Date: Thu, 16 Apr 2026 11:37:53 +0800 Message-Id: <20260416033801.786415-1-linan666@huaweicloud.com> X-Mailer: git-send-email 2.39.2 Precedence: bulk X-Mailing-List: linux-raid@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:_Ch0CgCHM72BXOBpn95JAg--.61021S4 X-Coremail-Antispam: 1UD129KBjvJXoW7ur4rurW7ZF18tryfAr45Awb_yoW8AFy7pa nxWr9xZ3yrGr4fGr9xJr4j9ry5Wa4rZ3yjyF13Z34xXF13ZFyj9r18ta95W3yDWr9xJFyx Xr4UGr4xWF1YkFJanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUU9G14x267AKxVW8JVW5JwAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK02 1l84ACjcxK6xIIjxv20xvE14v26F1j6w1UM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26F4j 6r4UJwA2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxVW0oV Cq3wAac4AC62xK8xCEY4vEwIxC4wAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC 0VAKzVAqx4xG6I80ewAv7VC0I7IYx2IY67AKxVWUXVWUAwAv7VC2z280aVAFwI0_Gr1j6F 4UJwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI2 0VAGYxC7M4kE6xkIj40Ew7xC0wCY1x0262kKe7AKxVWUAVWUtwCF04k20xvY0x0EwIxGrw CFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE 14v26r106r1rMI8E67AF67kF1VAFwI0_JF0_Jw1lIxkGc2Ij64vIr41lIxAIcVC0I7IYx2 IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Jr0_Gr1lIxAIcVCF04k26cxK x2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI 0_Jr0_GrUvcSsGvfC2KfnxnUUI43ZEXa7VUbhL05UUUUU== X-CM-SenderInfo: polqt0awwwqx5xdzvxpfor3voofrz/ From: Li Nan This patchset adds folio support to sync operations in raid1/10. Previously, we used 16 * 4K pages for 64K sync I/O. With this change, we'll use a single 64K folio instead. Using folios reduces resync/recovery time by 20% on HDD. This is the first step towards full folio support in RAID. Going forward, I will replace the remaining page-based usage with folio. The patchset was tested with mdadm. Additional fault injection stress tests were run under file systems. v3: - In patch 3/4/5, ntroduce safe_folio_put and use it for tmpfolio. - Merge Cleanup patch into patch 6. v2: - Remove patch "md: use folio for bb_folio". It will be included in a later patch set - In patch 5: 1) fix typo 2) rewrite the logic of copying data in process_checks() 3) rename resync_get_all_folio() to resync_get_folio() 4) s/resync_pages *rps/resync_folio *rfs/g in raid1_alloc_init_r1buf() and raid10_alloc_init_r10buf() - Subsequent patches: Adapting conflicts caused by patch 5 Li Nan (8): md/raid1,raid10: clean up of RESYNC_SECTORS md: introduce sync_folio_io for folio support in RAID md: introduce safe_put_folio for folio support in RAID md/raid1: use folio for tmppage md/raid10: use folio for tmppage md/raid1,raid10: use folio for sync path IO md/raid1: fix IO error at logical block size granularity md/raid10: fix IO error at logical block size granularity drivers/md/md.h | 10 +- drivers/md/raid1.h | 2 +- drivers/md/raid10.h | 2 +- drivers/md/md.c | 17 ++- drivers/md/raid1-10.c | 81 ++++------- drivers/md/raid1.c | 233 ++++++++++++++----------------- drivers/md/raid10.c | 312 ++++++++++++++++++++---------------------- 7 files changed, 297 insertions(+), 360 deletions(-) -- 2.39.2