From: keith.busch@intel.com (Keith Busch)
Subject: [PATCH] NVMe: Format fix when going from 4k sector size to 512 bytes
Date: Thu, 14 Dec 2017 15:42:57 -0700 [thread overview]
Message-ID: <20171214224257.GE26752@localhost.localdomain> (raw)
In-Reply-To: <20171214204936.17793-1-jeff.lien@wdc.com>
On Thu, Dec 14, 2017@02:49:36PM -0600, Jeff Lien wrote:
> If you format a device with a 4k sector size back to 512 bytes,
> the queue limit values for physical block size and IO sizes were
> not getting updated; only the logical block size was being
> updated. This patch adds code to update the physical block
> and IO sizes.
That's true, though I always considered that to be a happy accident. As
far as I know, most NVMe SSDs advertising a 512 byte logical block are
only emulating that size, and are natively 4k or larger.
next prev parent reply other threads:[~2017-12-14 22:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-14 20:49 [PATCH] NVMe: Format fix when going from 4k sector size to 512 bytes Jeff Lien
2017-12-14 22:42 ` Keith Busch [this message]
2017-12-15 3:52 ` Martin K. Petersen
2017-12-15 14:53 ` Christoph Hellwig
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