linux-kernel - Re: [PATCH] libnvdimm, pmem: Add sysfs notifications to badblocks

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Date:   Mon, 12 Jun 2017 20:18:33 +0000
From:   "Kani, Toshimitsu" <toshi.kani@....com>
To:     "dan.j.williams@...el.com" <dan.j.williams@...el.com>
CC:     "Knippers, Linda" <linda.knippers@....com>,
        "linux-nvdimm@...ts.01.org" <linux-nvdimm@...ts.01.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "vishal.l.verma@...el.com" <vishal.l.verma@...el.com>
Subject: Re: [PATCH] libnvdimm, pmem: Add sysfs notifications to badblocks

On Mon, 2017-06-12 at 10:42 -0600, Toshi Kani wrote:
> Sysfs "badblocks" information may be updated during run-time via
> MCE, SCI, and sysfs "scrub".
> 
> Add support to send sysfs notifications to sysfs "badblocks" file
> under region and pmem directories when their badblocks information
> is re-evaluated (but is not necessarily changed) during run-time.

Thinking further, this notification should be sent when a badblock is
cleared via _DSM.  I will update and send v2.

-Toshi