linux-kernel - [PATCH 06/16] nvmet: use blk_queue_zone

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Message-Id: <20220427160255.300418-7-p.raghav@samsung.com>
Date:   Wed, 27 Apr 2022 18:02:45 +0200
From:   Pankaj Raghav <p.raghav@...sung.com>
To:     jaegeuk@...nel.org, axboe@...nel.dk, snitzer@...nel.org,
        hch@....de, mcgrof@...nel.org, naohiro.aota@....com,
        sagi@...mberg.me, damien.lemoal@...nsource.wdc.com,
        dsterba@...e.com, johannes.thumshirn@....com
Cc:     linux-kernel@...r.kernel.org, linux-btrfs@...r.kernel.org,
        clm@...com, gost.dev@...sung.com, chao@...nel.org,
        linux-f2fs-devel@...ts.sourceforge.net, josef@...icpanda.com,
        jonathan.derrick@...ux.dev, agk@...hat.com, kbusch@...nel.org,
        kch@...dia.com, linux-nvme@...ts.infradead.org,
        dm-devel@...hat.com, bvanassche@....org, jiangbo.365@...edance.com,
        linux-fsdevel@...r.kernel.org, matias.bjorling@....com,
        linux-block@...r.kernel.org, Pankaj Raghav <p.raghav@...sung.com>
Subject: [PATCH 06/16] nvmet: use blk_queue_zone_no()

From: Luis Chamberlain <mcgrof@...nel.org>

Instead of open coding the number of zones given a sector, use the helper
blk_queue_zone_no(). This let's us make modifications to the math if
needed in one place and adds now support for npo2 zone devices.

Signed-off-by: Luis Chamberlain <mcgrof@...nel.org>
Signed-off-by: Pankaj Raghav <p.raghav@...sung.com>
---
 drivers/nvme/target/zns.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvme/target/zns.c b/drivers/nvme/target/zns.c
index e34718b09550..e41b6a6ef048 100644
--- a/drivers/nvme/target/zns.c
+++ b/drivers/nvme/target/zns.c
@@ -243,7 +243,7 @@ static unsigned long nvmet_req_nr_zones_from_slba(struct nvmet_req *req)
 	unsigned int sect = nvmet_lba_to_sect(req->ns, req->cmd->zmr.slba);
 
 	return blkdev_nr_zones(req->ns->bdev->bd_disk) -
-		(sect >> ilog2(bdev_zone_sectors(req->ns->bdev)));
+	       bdev_zone_no(req->ns->bdev, sect);
 }
 
 static unsigned long get_nr_zones_from_buf(struct nvmet_req *req, u32 bufsize)
-- 
2.25.1