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From: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
To: dan.j.williams@intel.com
Cc: linux-nvdimm@lists.01.org,
	"Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Subject: [PATCH v2 5/6] libnvdimm/namespace: Align DPA based on arch restrictions
Date: Thu, 28 Nov 2019 14:00:56 +0530
Message-ID: <20191128083057.141425-5-aneesh.kumar@linux.ibm.com> (raw)
In-Reply-To: <20191128083057.141425-1-aneesh.kumar@linux.ibm.com>

When creating new namespace make sure DPA address are properly aligned based
on arch restrictions.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
---
 drivers/nvdimm/namespace_devs.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c
index 06b55c41660d..6a83db9f8734 100644
--- a/drivers/nvdimm/namespace_devs.c
+++ b/drivers/nvdimm/namespace_devs.c
@@ -589,6 +589,8 @@ static void space_valid(struct nd_region *nd_region, struct nvdimm_drvdata *ndd,
 		return;
 	}
 
+	valid->start = ALIGN(valid->start, arch_namespace_align_size());
+
 	/* allocation needs to be contiguous, so this is all or nothing */
 	if (resource_size(valid) < n)
 		goto invalid;
-- 
2.23.0
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Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-28  8:30 [PATCH v2 1/6] libnvdimm/namespace: Make namespace size validation arch dependent Aneesh Kumar K.V
2019-11-28  8:30 ` [PATCH v2 2/6] libnvdimm/namespace: Validate namespace start addr and size Aneesh Kumar K.V
2019-11-28  8:30 ` [PATCH v2 3/6] libnvdimm/namespace: Validate namespace size when creating new namespace Aneesh Kumar K.V
2019-11-28  8:30 ` [PATCH v2 4/6] libnvdimm/namespace: Add debug check while initializing namespace resource size Aneesh Kumar K.V
2019-11-28  8:30 ` Aneesh Kumar K.V [this message]
2019-11-28  8:30 ` [PATCH v2 6/6] libnvdimm/namespace: Expose arch specific supported size align value Aneesh Kumar K.V

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