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From: Dan Williams <dan.j.williams@intel.com>
To: linux-mm@kvack.org
Cc: Vishal Verma <vishal.l.verma@intel.com>,
	Dave Jiang <dave.jiang@intel.com>,
	Ira Weiny <ira.weiny@intel.com>,
	stable@vger.kernel.org, linux-nvdimm@lists.01.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v2 5/5] libnvdimm/namespace: Fix visibility of namespace resource attribute
Date: Tue, 12 Jan 2021 01:35:03 -0800	[thread overview]
Message-ID: <161044410393.1482714.2866941280476392381.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <161044407603.1482714.16630477578392768273.stgit@dwillia2-desk3.amr.corp.intel.com>

Legacy pmem namespaces lost support for the "resource" attribute when
the code was cleaned up to put the permission visibility in the
declaration. Restore this by listing 'resource' in the default
attributes.

A new ndctl regression test for pfn_to_online_page() corner cases builds
on this fix.

Fixes: bfd2e9140656 ("libnvdimm: Simplify root read-only definition for the 'resource' attribute")
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/nvdimm/namespace_devs.c |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c
index 6da67f4d641a..2403b71b601e 100644
--- a/drivers/nvdimm/namespace_devs.c
+++ b/drivers/nvdimm/namespace_devs.c
@@ -1635,11 +1635,11 @@ static umode_t namespace_visible(struct kobject *kobj,
 		return a->mode;
 	}
 
-	if (a == &dev_attr_nstype.attr || a == &dev_attr_size.attr
-			|| a == &dev_attr_holder.attr
-			|| a == &dev_attr_holder_class.attr
-			|| a == &dev_attr_force_raw.attr
-			|| a == &dev_attr_mode.attr)
+	/* base is_namespace_io() attributes */
+	if (a == &dev_attr_nstype.attr || a == &dev_attr_size.attr ||
+	    a == &dev_attr_holder.attr || a == &dev_attr_holder_class.attr ||
+	    a == &dev_attr_force_raw.attr || a == &dev_attr_mode.attr ||
+	    a == &dev_attr_resource.attr)
 		return a->mode;
 
 	return 0;


      parent reply	other threads:[~2021-01-12  9:36 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-12  9:34 [PATCH v2 0/5] mm: Fix pfn_to_online_page() with respect to ZONE_DEVICE Dan Williams
2021-01-12  9:34 ` [PATCH v2 1/5] mm: Move pfn_to_online_page() out of line Dan Williams
2021-01-12  9:46   ` David Hildenbrand
2021-01-12 10:19   ` Oscar Salvador
2021-01-12  9:34 ` [PATCH v2 2/5] mm: Teach pfn_to_online_page() to consider subsection validity Dan Williams
2021-01-12  9:53   ` David Hildenbrand
2021-01-12 10:48     ` Oscar Salvador
2021-01-12 22:20     ` Dan Williams
2021-01-12  9:34 ` [PATCH v2 3/5] mm: Teach pfn_to_online_page() about ZONE_DEVICE section collisions Dan Williams
2021-01-12 10:01   ` David Hildenbrand
2021-01-12 11:00   ` Oscar Salvador
2021-01-12  9:34 ` [PATCH v2 4/5] mm: Fix page reference leak in soft_offline_page() Dan Williams
2021-01-12  9:53   ` Oscar Salvador
2021-01-12 20:03     ` Dan Williams
2021-01-12 10:16   ` David Hildenbrand
2021-01-12  9:35 ` Dan Williams [this message]

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