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Groups > linux.kernel > #1281488 > unrolled thread

[PATCH] nvdimm: do not show pfn_seed for non pmem regions

Started by"Dmitry V. Krivenok" <krivenok.dmitry@gmail.com>
First post2015-12-02 07:50 +0100
Last post2015-12-04 04:00 +0100
Articles 2 — 2 participants

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  [PATCH] nvdimm: do not show pfn_seed for non pmem regions "Dmitry V. Krivenok" <krivenok.dmitry@gmail.com> - 2015-12-02 07:50 +0100
    Re: [PATCH] nvdimm: do not show pfn_seed for non pmem regions Dan Williams <dan.j.williams@intel.com> - 2015-12-04 04:00 +0100

#1281488 — [PATCH] nvdimm: do not show pfn_seed for non pmem regions

From"Dmitry V. Krivenok" <krivenok.dmitry@gmail.com>
Date2015-12-02 07:50 +0100
Subject[PATCH] nvdimm: do not show pfn_seed for non pmem regions
Message-ID<qB9oJ-3AK-7@gated-at.bofh.it>
This simple change hides pfn_seed attribute for non pmem
regions because they don't support pfn anyway.

Signed-off-by: Dmitry V. Krivenok <krivenok.dmitry@gmail.com>
---
 drivers/nvdimm/region_devs.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c
index 529f3f0..3d730d1 100644
--- a/drivers/nvdimm/region_devs.c
+++ b/drivers/nvdimm/region_devs.c
@@ -406,6 +406,9 @@ static umode_t region_visible(struct kobject *kobj, struct attribute *a, int n)
 	struct nd_interleave_set *nd_set = nd_region->nd_set;
 	int type = nd_region_to_nstype(nd_region);
 
+	if (!is_nd_pmem(dev) && a == &dev_attr_pfn_seed.attr)
+		return 0;
+
 	if (a != &dev_attr_set_cookie.attr
 			&& a != &dev_attr_available_size.attr)
 		return a->mode;
-- 
2.6.2

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#1283563

FromDan Williams <dan.j.williams@intel.com>
Date2015-12-04 04:00 +0100
Message-ID<qBOLg-5es-9@gated-at.bofh.it>
In reply to#1281488
On Tue, Dec 1, 2015 at 10:39 PM, Dmitry V. Krivenok
<krivenok.dmitry@gmail.com> wrote:
> This simple change hides pfn_seed attribute for non pmem
> regions because they don't support pfn anyway.
>
> Signed-off-by: Dmitry V. Krivenok <krivenok.dmitry@gmail.com>
> ---

Looks good I'll queue it for 4.5.
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