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 lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2E205C77B78 for ; Thu, 4 May 2023 01:44:03 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-4.v29.lw.sourceforge.com) by sfs-ml-4.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1puO0m-0000nd-Sq; Thu, 04 May 2023 01:44:00 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-4.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1puO0i-0000nX-IJ for linux-f2fs-devel@lists.sourceforge.net; Thu, 04 May 2023 01:43:56 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:Content-Type:In-Reply-To: From:References:Cc:To:Subject:MIME-Version:Date:Message-ID:Sender:Reply-To: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=DP/gh+Y3p/bDM5UF6k67cgSCrb9Lweuv/V5vt3XRftE=; b=JWeogziVJV5UtZegKj/rDsDrGO nX/iNJ8OF9rNCt0C+meUONajjZVK1cxSlQnV7XPCTd5HN9/Yek1awaazvE8rVD5NN9J+RCS/t4mP5 2sFmrM+xU/UsMweF5xCAjMTzisXnyt+jkIcos18LtC7KFKpQsuM9K9n7T9+ZiqnBE9Y4=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:From:References:Cc:To: Subject:MIME-Version:Date:Message-ID:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=DP/gh+Y3p/bDM5UF6k67cgSCrb9Lweuv/V5vt3XRftE=; b=R3+VF3D+t7DQ3pk8F+zui+aHOW BYm4dA8xvek+9YCfuAt3uX+Xjdb+hjlisc3FNRhtIBy4QMCxC00p+GBfBGhTi58H+IjYi0pVqPfjf 5yYD4zwEdDoNxP2SC4KZCL78Fl0ADuHOwUdOi8JtKHqBNZCWfw4X5zAPCJC9yQDWWP+I=; Received: from dfw.source.kernel.org ([139.178.84.217]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1puO0h-0005Wi-Ok for linux-f2fs-devel@lists.sourceforge.net; Thu, 04 May 2023 01:43:56 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 90558619C4; Thu, 4 May 2023 01:43:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1465DC433D2; Thu, 4 May 2023 01:43:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1683164620; bh=rvpKaggMszfYip+0djm2qEsluKsxOtwAuEPdkTFMsMk=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=Bd3Ks804e8Dg3xIGkiux87A6xJhhYMXyiFSqE5jdNLdlQa28lotVHijpF+f+FLY90 JrMYvKKkzXjZZu1ijPd8sgcHK1p696lJQZRXJmjs+dW/dkpXMIhyVDT8EhRaTs+zUk lWVIBRF9IxbNkKKxq25oPqs5I3yw+QeY28d20fZsowvzYPAxXt33ZIJuPP7i8L19+H eF71fpWYVN6AM4xeSe9OHxqxpSe54RmVCTHau10eiEXAft5M+tZ4OzTgO2Oam6A4sQ fwCoqBYpmnMFyDGh3NS28M9TNblwalIE3T4iB/aqB0HDouHTr8Z14EAr6lk6Mcmd93 zxTBrpegkw7tA== Message-ID: <6596335b-2448-20f7-30ea-42ba40f1af72@kernel.org> Date: Thu, 4 May 2023 09:43:26 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 Content-Language: en-US To: daejun7.park@samsung.com, "jaegeuk@kernel.org" , "rostedt@goodmis.org" , "mhiramat@kernel.org" , "linux-f2fs-devel@lists.sourceforge.net" , "linux-kernel@vger.kernel.org" , "linux-trace-kernel@vger.kernel.org" References: <20230502041628epcms2p7233a97389cebafb73fc525a47215e707@epcms2p7> From: Chao Yu In-Reply-To: <20230502041628epcms2p7233a97389cebafb73fc525a47215e707@epcms2p7> X-Headers-End: 1puO0h-0005Wi-Ok Subject: Re: [f2fs-dev] [PATCH v4] f2fs: add async reset zone command support X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Seokhwan Kim , beomsu kim Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net On 2023/5/2 12:16, Daejun Park wrote: > Changelog: > > v3 -> v4 > Fixed build error caused by unused function. > > v2 -> v3 > Modified arguments to be correct for ftrace parameter. > Changed __submit_zone_reset_cmd to void return. > Refactored the f2fs_wait_discard_bio function. > Fixed code that was previously incorrectly merged. > > v1 -> v2 > Changed to apply the optional async reset write pointer by default. > > This patch enables submit reset zone command asynchornously. It helps > decrease average latency of write IOs in high utilization scenario by > faster checkpointing. > > Signed-off-by: Daejun Park > --- > fs/f2fs/segment.c | 83 +++++++++++++++++++++++++++++++++++-- > include/trace/events/f2fs.h | 18 +++++++- > 2 files changed, 96 insertions(+), 5 deletions(-) > > diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c > index 6db410f1bb8c..ec7a8de71198 100644 > --- a/fs/f2fs/segment.c > +++ b/fs/f2fs/segment.c > @@ -1196,6 +1196,44 @@ static void __init_discard_policy(struct f2fs_sb_info *sbi, > static void __update_discard_tree_range(struct f2fs_sb_info *sbi, > struct block_device *bdev, block_t lstart, > block_t start, block_t len); > + > +#ifdef CONFIG_BLK_DEV_ZONED > +static void __submit_zone_reset_cmd(struct f2fs_sb_info *sbi, > + struct discard_cmd *dc, blk_opf_t flag, > + struct list_head *wait_list, > + unsigned int *issued) > +{ > + struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; > + struct block_device *bdev = dc->bdev; > + struct bio *bio = bio_alloc(bdev, 0, REQ_OP_ZONE_RESET | flag, GFP_NOFS); > + unsigned long flags; > + > + trace_f2fs_issue_reset_zone(bdev, dc->di.start); > + > + spin_lock_irqsave(&dc->lock, flags); > + dc->state = D_SUBMIT; > + dc->bio_ref++; > + spin_unlock_irqrestore(&dc->lock, flags); > + > + if (issued) > + (*issued)++; > + > + atomic_inc(&dcc->queued_discard); > + dc->queued++; > + list_move_tail(&dc->list, wait_list); > + > + /* sanity check on discard range */ > + __check_sit_bitmap(sbi, dc->di.lstart, dc->di.lstart + dc->di.len); > + > + bio->bi_iter.bi_sector = SECTOR_FROM_BLOCK(dc->di.start); > + bio->bi_private = dc; > + bio->bi_end_io = f2fs_submit_discard_endio; > + submit_bio(bio); How about accounting iostat info for zone reset command? f2fs_update_iostat(sbi, NULL, FS_ZONE_RESET_IO, len * F2FS_BLKSIZE); > + > + atomic_inc(&dcc->issued_discard); > +} > +#endif > + > /* this function is copied from blkdev_issue_discard from block/blk-lib.c */ > static int __submit_discard_cmd(struct f2fs_sb_info *sbi, > struct discard_policy *dpolicy, > @@ -1217,6 +1255,13 @@ static int __submit_discard_cmd(struct f2fs_sb_info *sbi, > if (is_sbi_flag_set(sbi, SBI_NEED_FSCK)) > return 0; > > +#ifdef CONFIG_BLK_DEV_ZONED > + if (f2fs_sb_has_blkzoned(sbi) && bdev_is_zoned(bdev)) { > + __submit_zone_reset_cmd(sbi, dc, flag, wait_list, issued); > + return 0; > + } > +#endif > + > trace_f2fs_issue_discard(bdev, dc->di.start, dc->di.len); > > lstart = dc->di.lstart; > @@ -1461,6 +1506,19 @@ static void __update_discard_tree_range(struct f2fs_sb_info *sbi, > } > } > > +#ifdef CONFIG_BLK_DEV_ZONED > +static void __queue_zone_reset_cmd(struct f2fs_sb_info *sbi, > + struct block_device *bdev, block_t blkstart, block_t lblkstart, > + block_t blklen) > +{ > + trace_f2fs_queue_reset_zone(bdev, blkstart); > + > + mutex_lock(&SM_I(sbi)->dcc_info->cmd_lock); > + __insert_discard_cmd(sbi, bdev, lblkstart, blkstart, blklen); > + mutex_unlock(&SM_I(sbi)->dcc_info->cmd_lock); > +} > +#endif > + > static void __queue_discard_cmd(struct f2fs_sb_info *sbi, > struct block_device *bdev, block_t blkstart, block_t blklen) > { > @@ -1724,6 +1782,19 @@ static void f2fs_wait_discard_bio(struct f2fs_sb_info *sbi, block_t blkaddr) > > mutex_lock(&dcc->cmd_lock); > dc = __lookup_discard_cmd(sbi, blkaddr); > +#ifdef CONFIG_BLK_DEV_ZONED > + if (dc && f2fs_sb_has_blkzoned(sbi) && bdev_is_zoned(dc->bdev)) { > + /* force submit zone reset */ > + if (dc->state == D_PREP) > + __submit_zone_reset_cmd(sbi, dc, REQ_SYNC, > + &dcc->wait_list, NULL); > + dc->ref++; IIUC, should be? else dc->ref++; Thanks, > + mutex_unlock(&dcc->cmd_lock); > + /* wait zone reset */ > + __wait_one_discard_bio(sbi, dc); > + return; > + } > +#endif > if (dc) { > if (dc->state == D_PREP) { > __punch_discard_cmd(sbi, dc, blkaddr); > @@ -1876,9 +1947,15 @@ static int __f2fs_issue_discard_zone(struct f2fs_sb_info *sbi, > blkstart, blklen); > return -EIO; > } > - trace_f2fs_issue_reset_zone(bdev, blkstart); > - return blkdev_zone_mgmt(bdev, REQ_OP_ZONE_RESET, > - sector, nr_sects, GFP_NOFS); > + > + if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) { > + trace_f2fs_issue_reset_zone(bdev, blkstart); > + return blkdev_zone_mgmt(bdev, REQ_OP_ZONE_RESET, > + sector, nr_sects, GFP_NOFS); > + } > + > + __queue_zone_reset_cmd(sbi, bdev, blkstart, lblkstart, blklen); > + return 0; > } > > /* For conventional zones, use regular discard if supported */ > diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h > index 99cbc5949e3c..ee1477de8324 100644 > --- a/include/trace/events/f2fs.h > +++ b/include/trace/events/f2fs.h > @@ -1512,7 +1512,7 @@ DEFINE_EVENT(f2fs_discard, f2fs_remove_discard, > TP_ARGS(dev, blkstart, blklen) > ); > > -TRACE_EVENT(f2fs_issue_reset_zone, > +DECLARE_EVENT_CLASS(f2fs_reset_zone, > > TP_PROTO(struct block_device *dev, block_t blkstart), > > @@ -1528,11 +1528,25 @@ TRACE_EVENT(f2fs_issue_reset_zone, > __entry->blkstart = blkstart; > ), > > - TP_printk("dev = (%d,%d), reset zone at block = 0x%llx", > + TP_printk("dev = (%d,%d), zone at block = 0x%llx", > show_dev(__entry->dev), > (unsigned long long)__entry->blkstart) > ); > > +DEFINE_EVENT(f2fs_reset_zone, f2fs_queue_reset_zone, > + > + TP_PROTO(struct block_device *dev, block_t blkstart), > + > + TP_ARGS(dev, blkstart) > +); > + > +DEFINE_EVENT(f2fs_reset_zone, f2fs_issue_reset_zone, > + > + TP_PROTO(struct block_device *dev, block_t blkstart), > + > + TP_ARGS(dev, blkstart) > +); > + > TRACE_EVENT(f2fs_issue_flush, > > TP_PROTO(struct block_device *dev, unsigned int nobarrier, _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel