[PATCH 2/3] devm_memremap_pages: use numa_mem_id

From	Dan Williams <dan.j.williams@intel.com>
Newsgroups	linux.kernel
Subject	[PATCH 2/3] devm_memremap_pages: use numa_mem_id
Date	2015-09-26 03:30 +0200
Message-ID	<qcMtj-1TD-1@gated-at.bofh.it> (permalink)
References	<qcMtj-1TD-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

Hint to closest numa node for the placement of newly allocated pages.
As that is where the device's other allocations will originate by
default when it does not specify a NUMA node.

Cc: Christoph Hellwig <hch@lst.de>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 kernel/memremap.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/memremap.c b/kernel/memremap.c
index 72b0c66628b6..86a5cdeb18f2 100644
--- a/kernel/memremap.c
+++ b/kernel/memremap.c
@@ -175,7 +175,7 @@ void *devm_memremap_pages(struct device *dev, struct resource *res)
 
 	nid = dev_to_node(dev);
 	if (nid < 0)
-		nid = 0;
+		nid = numa_mem_id();
 
 	error = arch_add_memory(nid, res->start, resource_size(res), true);
 	if (error) {

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

[PATCH 2/3] devm_memremap_pages: use numa_mem_id Dan Williams <dan.j.williams@intel.com> - 2015-09-26 03:30 +0200

csiph-web