From: Christoph Hellwig <hch@infradead.org>
To: Damien Le Moal <damien.lemoal@wdc.com>
Cc: linux-block@vger.kernel.org, Jens Axboe <axboe@kernel.dk>,
linux-scsi@vger.kernel.org,
"Martin K . Petersen" <martin.petersen@oracle.com>
Subject: Re: [PATCH] block: all zones zone management operations
Date: Thu, 26 Mar 2020 00:28:00 -0700 [thread overview]
Message-ID: <20200326072800.GA21082@infradead.org> (raw)
In-Reply-To: <20200326043012.600187-1-damien.lemoal@wdc.com>
On Thu, Mar 26, 2020 at 01:30:12PM +0900, Damien Le Moal wrote:
> Similarly to the zone write pointer reset operation (REQ_OP_ZONE_RESET),
> the zone open, close and finish operations can operate on all zones of a
> ZBC or ZAC SMR disk by setting the all bit of the command. Compared to a
> loop issuing a request for every zone of the device, the device based
> processing of an all zone operation is several orders of magnitude
> faster.
What is the point? None of these actually seem like remotely useful
operations. Why would I ever want to open or finish all zones?
next prev parent reply other threads:[~2020-03-26 7:28 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-26 4:30 [PATCH] block: all zones zone management operations Damien Le Moal
2020-03-26 7:28 ` Christoph Hellwig [this message]
2020-03-26 8:23 ` Damien Le Moal
2020-03-26 9:30 ` hch
2020-03-28 8:13 ` Damien Le Moal
2020-03-28 8:22 ` hch
2020-03-28 8:27 ` Damien Le Moal
2020-03-28 8:31 ` hch
2020-03-28 8:37 ` Damien Le Moal
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