RE: [PATCH v2] libnvdimm, pmem: Add sysfs notifications to badblocks

From: Kani, Toshimitsu
Date: Fri Jun 16 2017 - 20:51:31 EST


> On Fri, Jun 16, 2017 at 5:35 PM, Kani, Toshimitsu <toshi.kani@xxxxxxx> wrote:
> >> On Mon, Jun 12, 2017 at 3:25 PM, Toshi Kani <toshi.kani@xxxxxxx> wrote:
> >> > Sysfs "badblocks" information may be updated during run-time that:
> >> > - MCE, SCI, and sysfs "scrub" may add new bad blocks
> >> > - Writes and ioctl() may clear bad blocks
> >> >
> >> > 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.
> >> >
> >> > Signed-off-by: Toshi Kani <toshi.kani@xxxxxxx>
> >> > Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
> >> > Cc: Vishal Verma <vishal.l.verma@xxxxxxxxx>
> >> > Cc: Linda Knippers <linda.knippers@xxxxxxx>
> >> > ---
> >> > v2: Send notifications for the clearing case
> >> > ---
> >>
> >> This looks good to me, I've applied it, but I also want to extend the
> >> ndctl unit tests to cover this mechanism.
> >
> > Right. For the time being, would you mind to use the attached test
> > program for your sanity tests? It simply monitors sysfs notifications
> > and prints badblocks info... Sorry for inconvenience.
> >
> > Since I am not familiar with the ndctl unit tests and I am traveling for
> > the rest of the month, I may have to look into it after I am back.
> >
>
> No worries, I'll take a look at integrating this. Have a nice trip!

Thanks Dan!! I really appreciate it!
-Toshi