linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: "Kani, Toshimitsu" <toshi.kani@hpe.com>
To: "dan.j.williams@intel.com" <dan.j.williams@intel.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"dave.jiang@intel.com" <dave.jiang@intel.com>,
	"linux-nvdimm@lists.01.org" <linux-nvdimm@ml01.01.org>,
	"vishal.l.verma@intel.com" <vishal.l.verma@intel.com>
Subject: Re: [PATCH 1/2] libnvdimm: fix clear length of nvdimm_forget_poison()
Date: Fri, 28 Apr 2017 22:29:16 +0000	[thread overview]
Message-ID: <1493418523.30303.6.camel@hpe.com> (raw)
In-Reply-To: <CAPcyv4i+U62GMyK=xNXB9ZjzS-028q4Qch=kxa9_pkwXrFJdsA@mail.gmail.com>

On Fri, 2017-04-28 at 14:48 -0700, Dan Williams wrote:
> On Thu, Apr 27, 2017 at 3:57 PM, Toshi Kani <toshi.kani@hpe.com>
> wrote:
> > ND_CMD_CLEAR_ERROR command returns 'clear_err.cleared', the length
> > of error actually cleared, which may be smaller than its requested
> > 'len'.
> > 
> > Change nvdimm_clear_poison() to call nvdimm_forget_poison() with
> > 'clear_err.cleared' when this value is valid.
> > 
> > Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
> > Cc: Dan Williams <dan.j.williams@intel.com>
> > Cc: Dave Jiang <dave.jiang@intel.com>
> > Cc: Vishal Verma <vishal.l.verma@intel.com>
> > ---
> > Based on 'libnvdimm-for-next'.
> > ---
> >  drivers/nvdimm/bus.c |    4 +++-
> >  1 file changed, 3 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c
> > index d214ac44..43ddfd4 100644
> > --- a/drivers/nvdimm/bus.c
> > +++ b/drivers/nvdimm/bus.c
> > @@ -219,7 +219,9 @@ long nvdimm_clear_poison(struct device *dev,
> > phys_addr_t phys,
> >         if (cmd_rc < 0)
> >                 return cmd_rc;
> > 
> > -       nvdimm_forget_poison(nvdimm_bus, phys, len);
> > +       if (clear_err.cleared > 0)
> > +               nvdimm_forget_poison(nvdimm_bus, phys,
> > clear_err.cleared);
> > +
> >         return clear_err.cleared;
> 
> Looks, good we need to mark this for -stable since the bug is also
> present in current mainline.
> 
> Fixes: e046114af5fc ("libnvdimm: clear the internal poison_list when
> clearing badblocks")

Shall I send a patch based on the current mainline with cc to -stable? 
The func name is nvdimm_clear_from_poison_list() in the mainline.

Thanks,
-Toshi

  reply	other threads:[~2017-04-28 22:29 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-27 22:57 [PATCH 1/2] libnvdimm: fix clear length of nvdimm_forget_poison() Toshi Kani
2017-04-27 22:57 ` [PATCH 2/2] libnvdimm: clear region badblock in nvdimm_clear_poison() Toshi Kani
2017-04-29  0:10   ` Dan Williams
2017-04-29  0:12     ` Dan Williams
2017-04-29  0:35       ` Dan Williams
2017-05-01 15:05         ` Kani, Toshimitsu
2017-04-28 21:48 ` [PATCH 1/2] libnvdimm: fix clear length of nvdimm_forget_poison() Dan Williams
2017-04-28 22:29   ` Kani, Toshimitsu [this message]
2017-04-28 22:39     ` Dan Williams
2017-04-28 22:41       ` Kani, Toshimitsu

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1493418523.30303.6.camel@hpe.com \
    --to=toshi.kani@hpe.com \
    --cc=dan.j.williams@intel.com \
    --cc=dave.jiang@intel.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-nvdimm@ml01.01.org \
    --cc=vishal.l.verma@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).