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From: Keith Busch <kbusch@kernel.org>
To: Pankaj Raghav <p.raghav@samsung.com>
Cc: snitzer@kernel.org, axboe@kernel.dk, hch@lst.de, agk@redhat.com,
	damien.lemoal@opensource.wdc.com, linux-block@vger.kernel.org,
	Johannes.Thumshirn@wdc.com, bvanassche@acm.org,
	matias.bjorling@wdc.com, hare@suse.de, gost.dev@samsung.com,
	linux-nvme@lists.infradead.org, jaegeuk@kernel.org,
	pankydev8@gmail.com, linux-kernel@vger.kernel.org,
	dm-devel@redhat.com, Luis Chamberlain <mcgrof@kernel.org>
Subject: Re: [PATCH v10 05/13] nvme: zns: Allow ZNS drives that have non-power_of_2 zone size
Date: Tue, 16 Aug 2022 15:14:38 -0600	[thread overview]
Message-ID: <YvwIvrToFYMDwQoj@kbusch-mbp.dhcp.thefacebook.com> (raw)
In-Reply-To: <20220811143043.126029-6-p.raghav@samsung.com>

On Thu, Aug 11, 2022 at 04:30:35PM +0200, Pankaj Raghav wrote:
> @@ -101,13 +101,6 @@ int nvme_update_zone_info(struct nvme_ns *ns, unsigned lbaf)
>  	}
>  
>  	ns->zsze = nvme_lba_to_sect(ns, le64_to_cpu(id->lbafe[lbaf].zsze));
> -	if (!is_power_of_2(ns->zsze)) {
> -		dev_warn(ns->ctrl->device,
> -			"invalid zone size:%llu for namespace:%u\n",
> -			ns->zsze, ns->head->ns_id);
> -		status = -ENODEV;
> -		goto free_data;
> -	}

We used to bail out early if the format wasn't supported, which wouldn't create
the namespace.

Now you are relying on blk_revalidate_disk_zones() to report an error for
invalid format, but the handling for an error there is different: the namespace
still gets created. I'm not sure if that's a problem, but it's different.

  reply	other threads:[~2022-08-16 21:14 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20220811143044eucas1p2cb35a5c247788689aeebf2bc8eb9f5df@eucas1p2.samsung.com>
2022-08-11 14:30 ` [PATCH v10 00/13] support zoned block devices with non-power-of-2 zone sizes Pankaj Raghav
     [not found]   ` <CGME20220811143045eucas1p2773a7e7bbe9f3667d1105cc1465dac42@eucas1p2.samsung.com>
2022-08-11 14:30     ` [PATCH v10 01/13] block: make bdev_nr_zones and disk_zone_no generic for npo2 zone size Pankaj Raghav
     [not found]   ` <CGME20220811143046eucas1p2e49a778cff29476c7ebaef1d1c67d86c@eucas1p2.samsung.com>
2022-08-11 14:30     ` [PATCH v10 02/13] block:rearrange bdev_{is_zoned,zone_sectors,get_queue} helpers in blkdev.h Pankaj Raghav
2022-08-11 20:21       ` Damien Le Moal
     [not found]   ` <CGME20220811143048eucas1p10e3ae3ef0c93228e9598e1a1a613f6e1@eucas1p1.samsung.com>
2022-08-11 14:30     ` [PATCH v10 03/13] block: allow blk-zoned devices to have non-power-of-2 zone size Pankaj Raghav
     [not found]   ` <CGME20220811143049eucas1p141d029f2efd6703b596bbea71ab69204@eucas1p1.samsung.com>
2022-08-11 14:30     ` [PATCH v10 04/13] nvmet: Allow ZNS target to support non-power_of_2 zone sizes Pankaj Raghav
     [not found]   ` <CGME20220811143050eucas1p12321909b1b7f94182708b935b35e4ff9@eucas1p1.samsung.com>
2022-08-11 14:30     ` [PATCH v10 05/13] nvme: zns: Allow ZNS drives that have non-power_of_2 zone size Pankaj Raghav
2022-08-16 21:14       ` Keith Busch [this message]
2022-08-17  7:28         ` Pankaj Raghav
     [not found]   ` <CGME20220811143051eucas1p24c16e378cd8080b0b22f5fb4d7659cf0@eucas1p2.samsung.com>
2022-08-11 14:30     ` [PATCH v10 06/13] null_blk: allow zoned devices with non power-of-2 zone sizes Pankaj Raghav
     [not found]   ` <CGME20220811143052eucas1p1426fad3e5fd52fb93243e5daaf06ce7d@eucas1p1.samsung.com>
2022-08-11 14:30     ` [PATCH v10 07/13] zonefs: allow non power of 2 zoned devices Pankaj Raghav
     [not found]   ` <CGME20220811143053eucas1p2eda49423b8f18ef71c47583af4855f6b@eucas1p2.samsung.com>
2022-08-11 14:30     ` [PATCH v10 08/13] dm-zoned: ensure only power of 2 zone sizes are allowed Pankaj Raghav
     [not found]   ` <CGME20220811143054eucas1p219e5b31b24cca97e2bc563351436543d@eucas1p2.samsung.com>
2022-08-11 14:30     ` [PATCH v10 09/13] dm-zone: use generic helpers to calculate offset from zone start Pankaj Raghav
     [not found]   ` <CGME20220811143055eucas1p2211be7f9ed867e40df58c25e6222be2d@eucas1p2.samsung.com>
2022-08-11 14:30     ` [PATCH v10 10/13] dm-table: allow zoned devices with non power-of-2 zone sizes Pankaj Raghav
     [not found]   ` <CGME20220811143056eucas1p13136f35c6f0c7c2717b68a63c8d4c7c6@eucas1p1.samsung.com>
2022-08-11 14:30     ` [PATCH v10 11/13] dm: call dm_zone_endio after the target endio callback for zoned devices Pankaj Raghav
     [not found]   ` <CGME20220811143057eucas1p1210aba036ebd96d290d74bfe0231299c@eucas1p1.samsung.com>
2022-08-11 14:30     ` [PATCH v10 12/13] dm: introduce DM_EMULATED_ZONES target type Pankaj Raghav
     [not found]   ` <CGME20220811143058eucas1p247291685ffff7a75186947fd30b5c13f@eucas1p2.samsung.com>
2022-08-11 14:30     ` [PATCH v10 13/13] dm: add power-of-2 target for zoned devices with non power-of-2 zone sizes Pankaj Raghav
2022-08-11 16:15       ` Damien Le Moal
2022-08-12  7:25         ` Pankaj Raghav
2022-08-12 12:03       ` Joel Granados
2022-08-12 15:57       ` Damien Le Moal
2022-08-15 13:38         ` Pankaj Raghav
2022-08-15 18:56           ` Damien Le Moal
2022-08-16  8:02             ` Pankaj Raghav

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