Re: [PATCH v8 00/11] support non power of 2 zoned device

From: Bart Van Assche
Date: Thu Jul 28 2022 - 09:30:25 EST


On 7/28/22 04:57, Pankaj Raghav wrote:
Hi Bart,

On 2022-07-28 01:19, Bart Van Assche wrote:
On 7/27/22 09:22, Pankaj Raghav wrote:
This series adds support to npo2 zoned devices in the block and nvme
layer and a new **dm target** is added: dm-po2z-target. This new
target will be initially used for filesystems such as btrfs and
f2fs that does not have native npo2 zone support.

Should any SCSI changes be included in this patch series? From sd_zbc.c:

    if (!is_power_of_2(zone_blocks)) {
        sd_printk(KERN_ERR, sdkp,
              "Zone size %llu is not a power of two.\n",
              zone_blocks);
        return -EINVAL;
    }

I would keep these changes out of the current patch series because it
will also increase the test scope. I think once the block layer
constraint is removed as a part of this series, we can work on the SCSI
changes in the next cycle.

That's fine with me.

Thanks,

Bart.