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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 249C5CD11C2 for ; Fri, 5 Apr 2024 04:42:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:To:From:Reply-To: Cc:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Hnyg2IPkrDSGBH+HtzOiBIeTqEjIMpKRnevBYApvf9k=; b=M64nvOAK5CoDu+75i12B9bjpYP GGmSM4fXuH9jtRCL/6yuJsmtOpCk14/ScUcJnwMk6KiOKkoAvq2wMyCkfBwOwKcQL5V+SoBGWOU5K XpjCW+L9vw5Zigux9brTTDbPDkRILDNaSnj3XWGX5A0gy6TnzUePpAb0tXF0MOTQetRf5IH9nuO85 5SZrcm0y7Hhj0O2SSDLqM4Ic+RlZPToI8Jy7MxiGlWcheN6129fYZh5fzuBnnLaFej8vlIBOknAjN Dzs4b2rW3Dn6c+hXaArPv0fHRl9D8qLA9LkH/k35hIDC0kRFW6AjJpPJN3goHJHDl5H398tpKTvfn GmrHR78A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rsbPC-00000005BCr-2YDL; Fri, 05 Apr 2024 04:42:22 +0000 Received: from sin.source.kernel.org ([145.40.73.55]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rsbP8-00000005B7q-08do for linux-nvme@lists.infradead.org; Fri, 05 Apr 2024 04:42:19 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id 3F869CE35E4; Fri, 5 Apr 2024 04:42:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5233FC433C7; Fri, 5 Apr 2024 04:42:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1712292135; bh=7qLFKHmMqXCPhSR7cz1IzscSua25WxaMhOqOUOURAX0=; h=From:To:Subject:Date:In-Reply-To:References:From; b=fjGtxkbYkTG4F8M3FVBPb6ax8unAeIXDLJhm6OZCOnpLzNa4TNgpKooN3HJaLCG7A ojb9TXtlT+8mFzaLKjbpf2Q+UqDc8vNbh8UqkCOfAypcI1wu3J9x44Qu/54DJZDPrV h61pCc1Cgc0VxPfHKEaNjxugSUOeKjlQYgyLLFIjGB1+YLEhr6cbEyBOrkal/kphOl 1wUAfVX23sfFf07VbcdUn9ega97+RwNmKQcxbeFFrK+at4/JBTlaOIUXVwiR6IfMHG M2k0tzsHVfsUG6PlnwSUJHsTmpm9CrRv1byKISklexbasa/dlcwMDfmOFAxTOkkLRr Ssej2jp4eObPg== From: Damien Le Moal To: linux-block@vger.kernel.org, Jens Axboe , linux-scsi@vger.kernel.org, "Martin K . Petersen" , dm-devel@lists.linux.dev, Mike Snitzer , linux-nvme@lists.infradead.org, Keith Busch , Christoph Hellwig Subject: [PATCH v6 04/28] block: Introduce bio_straddles_zones() and bio_offset_from_zone_start() Date: Fri, 5 Apr 2024 13:41:43 +0900 Message-ID: <20240405044207.1123462-5-dlemoal@kernel.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240405044207.1123462-1-dlemoal@kernel.org> References: <20240405044207.1123462-1-dlemoal@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240404_214218_344671_41B9DB5C X-CRM114-Status: GOOD ( 10.46 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org Implement the inline helper functions bio_straddles_zones() and bio_offset_from_zone_start() to respectively test if a BIO crosses a zone boundary (the start sector and last sector belong to different zones) and to obtain the offset of a BIO from the start sector of its target zone. Signed-off-by: Damien Le Moal Reviewed-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Reviewed-by: Bart Van Assche Tested-by: Hans Holmberg --- include/linux/blkdev.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index c3e8f7cf96be..ec7bd7091467 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -853,6 +853,13 @@ static inline unsigned int bio_zone_no(struct bio *bio) return disk_zone_no(bio->bi_bdev->bd_disk, bio->bi_iter.bi_sector); } +static inline bool bio_straddles_zones(struct bio *bio) +{ + return bio_sectors(bio) && + bio_zone_no(bio) != + disk_zone_no(bio->bi_bdev->bd_disk, bio_end_sector(bio) - 1); +} + static inline unsigned int bio_zone_is_seq(struct bio *bio) { return disk_zone_is_seq(bio->bi_bdev->bd_disk, bio->bi_iter.bi_sector); @@ -1328,6 +1335,12 @@ static inline sector_t bdev_offset_from_zone_start(struct block_device *bdev, return sector & (bdev_zone_sectors(bdev) - 1); } +static inline sector_t bio_offset_from_zone_start(struct bio *bio) +{ + return bdev_offset_from_zone_start(bio->bi_bdev, + bio->bi_iter.bi_sector); +} + static inline bool bdev_is_zone_start(struct block_device *bdev, sector_t sector) { -- 2.44.0