From patchwork Fri Jan 22 06:21:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Naohiro Aota X-Patchwork-Id: 12038461 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4BDFAC433DB for ; Fri, 22 Jan 2021 06:27:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0AFAB208C7 for ; Fri, 22 Jan 2021 06:27:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726934AbhAVG1S (ORCPT ); Fri, 22 Jan 2021 01:27:18 -0500 Received: from esa1.hgst.iphmx.com ([68.232.141.245]:51117 "EHLO esa1.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726881AbhAVG0f (ORCPT ); Fri, 22 Jan 2021 01:26:35 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1611296794; x=1642832794; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=iTDApfHjxNn23xXxCjyrWAIv04B+IUUueksYv/jar9g=; b=cuM/wDqcVIf/l1PQ7+78R571wLMUZ1EOqbEdWCWmCQeRHZB3XEj4AVqB QP4/N8XGi69kdlpOaa3HxHKNsxV9jOE2HuVLypS/GVO50MGJcRszYl3y6 XWeBX7CemOaSJcMHA1f+rvgR8o7qrV1SheZA8Rzd4tuiv163+7X3MDXJl eLrvV9oqrdcIS8W7ICQs2r3GKreKTzk2dHg9RArw8EKeW2Ef8fyetEjjV Z61/HDbNfHqzuSZEQ9sIQp1N/dyZghyx8rprSM7WB6WfLt2eNfO2rBXXD FFXWtbRw7tfMotSGsbq5nahqLDkhsSuvfVWEJiOd1nK8yHhhlATs5kSHI A==; IronPort-SDR: UpGmvzFH4Uu2yhRPxZOqlo7C1WSwGy6PdsHTCsROMLQww5qRy7vdbNv50Qhw58K2CguI4MCzR2 caGoQcKWuXRbNpE+kdtX1uSl6j4vhweT1bBfStkIdcMqI6S2fKRt5pmytb7ULez2/6HQuD+w0B 1r00bnGRH0gkeqy7hXRqS3EbQ1Oi/nupbmcRyHZ27MNVLI69xlxCVj9YIfU8wE6ujlIWjcTTKr TRk824WOsq+vMZIhoyl0fhE03dEeokYPzMAt6Gu+jfP4poYGZaA62z7uqReh+DUpf8Bqy8/Mmo opw= X-IronPort-AV: E=Sophos;i="5.79,365,1602518400"; d="scan'208";a="268392019" Received: from uls-op-cesaip02.wdc.com (HELO uls-op-cesaep02.wdc.com) ([199.255.45.15]) by ob1.hgst.iphmx.com with ESMTP; 22 Jan 2021 14:23:02 +0800 IronPort-SDR: ob+xaI1PAxC6a1ZKr8/hksjmIuRRmD+m7E8Ok+8awhZ0TiUfu7Z5a4Fpqe0E9wCilN+sTE35df sYun6s+F+2tfwKVly44U5JaFh0iw0mccp9UCNfAhIj2BZtfHsQI/5O3UZY+GL51Qdo3vqzi6FV 9ZNmS1HYfgTcd81vxprbzrkCOVTOdhE8mGWe9JAYdzQE1mGZQwi89eRqct/FQg4wa/RMDTtsI+ Kppv5s6joMgBd1ee2f0oOMFE7Q8oe0YkUyQ9pCEvz92JSqYAAXuBYNDfWEbQhqp5h+lEwU4GW2 BQHPJto94rluH8/Lx2dcFtcs Received: from uls-op-cesaip02.wdc.com ([10.248.3.37]) by uls-op-cesaep02.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Jan 2021 22:05:34 -0800 IronPort-SDR: JYIMXcBteC4EIruOzeouzp7Oh6z+ER6Lt8NPCUeGH40AlQGIQaohiVQCMpTiNmTakbM58H2/a7 EmWn9FmE1DJBGKJvG/J3KphkUJ3yob9xejZlxQ1k4ZBTJDnJdz9WQZHMVivB0EClJuP559HIPn BcXEGmSigv3Y1VL1xeJ61fSS9snXVmSUJYWBjILvj60MUoxGBDto/ZsHKoHHBFxmbQsTevjb0A KGu0odMt6N+QqZZDIj1VqJOw68Mfxg/vsSJ78y6YwpPdoWqZPOxRnaCX0tScAlpSrZ6jmky3Nv itc= WDCIronportException: Internal Received: from naota.dhcp.fujisawa.hgst.com ([10.149.52.155]) by uls-op-cesaip02.wdc.com with ESMTP; 21 Jan 2021 22:23:01 -0800 From: Naohiro Aota To: linux-btrfs@vger.kernel.org, dsterba@suse.com Cc: hare@suse.com, linux-fsdevel@vger.kernel.org, Jens Axboe , Christoph Hellwig , "Darrick J. Wong" , Johannes Thumshirn , Josef Bacik Subject: [PATCH v13 25/42] btrfs: cache if block-group is on a sequential zone Date: Fri, 22 Jan 2021 15:21:25 +0900 Message-Id: <7ff0091533246b3b30d692de42aff19a3fc5f72d.1611295439.git.naohiro.aota@wdc.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org From: Johannes Thumshirn In zoned mode, cache if a block-group is on a sequential write only zone. On sequential write only zones, we can use REQ_OP_ZONE_APPEND for writing of data, therefore provide btrfs_use_zone_append() to figure out if I/O is targeting a sequential write only zone and we can use said REQ_OP_ZONE_APPEND for data writing. Reviewed-by: Josef Bacik Signed-off-by: Johannes Thumshirn --- fs/btrfs/block-group.h | 2 ++ fs/btrfs/zoned.c | 29 +++++++++++++++++++++++++++++ fs/btrfs/zoned.h | 5 +++++ 3 files changed, 36 insertions(+) diff --git a/fs/btrfs/block-group.h b/fs/btrfs/block-group.h index 9df00ada09f9..a1d96c4cfa3b 100644 --- a/fs/btrfs/block-group.h +++ b/fs/btrfs/block-group.h @@ -184,6 +184,8 @@ struct btrfs_block_group { /* Record locked full stripes for RAID5/6 block group */ struct btrfs_full_stripe_locks_tree full_stripe_locks_root; + /* Flag indicating this block-group is placed on a sequential zone */ + bool seq_zone; /* * Allocation offset for the block group to implement sequential * allocation. This is used only with ZONED mode enabled. diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c index 77ebc4cc5b07..d026257a43a9 100644 --- a/fs/btrfs/zoned.c +++ b/fs/btrfs/zoned.c @@ -1103,6 +1103,9 @@ int btrfs_load_block_group_zone_info(struct btrfs_block_group *cache, bool new) } } + if (num_sequential > 0) + cache->seq_zone = true; + if (num_conventional > 0) { /* * Avoid calling calculate_alloc_pointer() for new BG. It @@ -1223,3 +1226,29 @@ void btrfs_free_redirty_list(struct btrfs_transaction *trans) } spin_unlock(&trans->releasing_ebs_lock); } + +bool btrfs_use_zone_append(struct btrfs_inode *inode, struct extent_map *em) +{ + struct btrfs_fs_info *fs_info = inode->root->fs_info; + struct btrfs_block_group *cache; + bool ret = false; + + if (!btrfs_is_zoned(fs_info)) + return false; + + if (!fs_info->max_zone_append_size) + return false; + + if (!is_data_inode(&inode->vfs_inode)) + return false; + + cache = btrfs_lookup_block_group(fs_info, em->block_start); + ASSERT(cache); + if (!cache) + return false; + + ret = cache->seq_zone; + btrfs_put_block_group(cache); + + return ret; +} diff --git a/fs/btrfs/zoned.h b/fs/btrfs/zoned.h index 331951978487..92888eb86055 100644 --- a/fs/btrfs/zoned.h +++ b/fs/btrfs/zoned.h @@ -46,6 +46,7 @@ void btrfs_calc_zone_unusable(struct btrfs_block_group *cache); void btrfs_redirty_list_add(struct btrfs_transaction *trans, struct extent_buffer *eb); void btrfs_free_redirty_list(struct btrfs_transaction *trans); +bool btrfs_use_zone_append(struct btrfs_inode *inode, struct extent_map *em); #else /* CONFIG_BLK_DEV_ZONED */ static inline int btrfs_get_dev_zone(struct btrfs_device *device, u64 pos, struct blk_zone *zone) @@ -134,6 +135,10 @@ static inline void btrfs_redirty_list_add(struct btrfs_transaction *trans, struct extent_buffer *eb) { } static inline void btrfs_free_redirty_list(struct btrfs_transaction *trans) { } +bool btrfs_use_zone_append(struct btrfs_inode *inode, struct extent_map *em) +{ + return false; +} #endif static inline bool btrfs_dev_is_sequential(struct btrfs_device *device, u64 pos)