Message ID | 20220912082204.51189-9-p.raghav@samsung.com (mailing list archive) |
---|---|
State | Changes Requested, archived |
Delegated to: | Mike Snitzer |
Headers | show
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Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 3.1 on 10.11.54.4 Subject: [dm-devel] [PATCH v13 08/13] dm-zoned: ensure only power of 2 zone sizes are allowed X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: device-mapper development <dm-devel.redhat.com> List-Unsubscribe: <https://listman.redhat.com/mailman/options/dm-devel>, <mailto:dm-devel-request@redhat.com?subject=unsubscribe> List-Archive: <http://listman.redhat.com/archives/dm-devel/> List-Post: <mailto:dm-devel@redhat.com> List-Help: <mailto:dm-devel-request@redhat.com?subject=help> List-Subscribe: <https://listman.redhat.com/mailman/listinfo/dm-devel>, <mailto:dm-devel-request@redhat.com?subject=subscribe> Cc: Pankaj Raghav <p.raghav@samsung.com>, bvanassche@acm.org, pankydev8@gmail.com, Johannes.Thumshirn@wdc.com, linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, dm-devel@redhat.com, gost.dev@samsung.com, jaegeuk@kernel.org, matias.bjorling@wdc.com, Luis Chamberlain <mcgrof@kernel.org> Errors-To: dm-devel-bounces@redhat.com Sender: "dm-devel" <dm-devel-bounces@redhat.com> X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; 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Series |
support zoned block devices with non-power-of-2 zone sizes
|
expand
|
Looks good,
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
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diff --git a/drivers/md/dm-zoned-target.c b/drivers/md/dm-zoned-target.c index 95b132b52f33..9325bf5dee81 100644 --- a/drivers/md/dm-zoned-target.c +++ b/drivers/md/dm-zoned-target.c @@ -792,6 +792,10 @@ static int dmz_fixup_devices(struct dm_target *ti) return -EINVAL; } zone_nr_sectors = bdev_zone_sectors(bdev); + if (!is_power_of_2(zone_nr_sectors)) { + ti->error = "Zone size is not a power-of-2 number of sectors"; + return -EINVAL; + } zoned_dev->zone_nr_sectors = zone_nr_sectors; zoned_dev->nr_zones = bdev_nr_zones(bdev); } @@ -804,6 +808,10 @@ static int dmz_fixup_devices(struct dm_target *ti) return -EINVAL; } zoned_dev->zone_nr_sectors = bdev_zone_sectors(bdev); + if (!is_power_of_2(zoned_dev->zone_nr_sectors)) { + ti->error = "Zone size is not a power-of-2 number of sectors"; + return -EINVAL; + } zoned_dev->nr_zones = bdev_nr_zones(bdev); }