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Diffstat (limited to 'drivers/dax')
-rw-r--r--drivers/dax/dax-private.h4
-rw-r--r--drivers/dax/device.c41
-rw-r--r--drivers/dax/pmem/core.c2
3 files changed, 2 insertions, 45 deletions
diff --git a/drivers/dax/dax-private.h b/drivers/dax/dax-private.h
index b4177aafbbd1..c915889d1769 100644
--- a/drivers/dax/dax-private.h
+++ b/drivers/dax/dax-private.h
@@ -43,8 +43,6 @@ struct dax_region {
* @target_node: effective numa node if dev_dax memory range is onlined
* @dev - device core
* @pgmap - pgmap for memmap setup / lifetime (driver owned)
- * @ref: pgmap reference count (driver owned)
- * @cmp: @ref final put completion (driver owned)
*/
struct dev_dax {
struct dax_region *region;
@@ -52,8 +50,6 @@ struct dev_dax {
int target_node;
struct device dev;
struct dev_pagemap pgmap;
- struct percpu_ref ref;
- struct completion cmp;
};
static inline struct dev_dax *to_dev_dax(struct device *dev)
diff --git a/drivers/dax/device.c b/drivers/dax/device.c
index 8465d12fecba..1af823b2fe6b 100644
--- a/drivers/dax/device.c
+++ b/drivers/dax/device.c
@@ -14,37 +14,6 @@
#include "dax-private.h"
#include "bus.h"
-static struct dev_dax *ref_to_dev_dax(struct percpu_ref *ref)
-{
- return container_of(ref, struct dev_dax, ref);
-}
-
-static void dev_dax_percpu_release(struct percpu_ref *ref)
-{
- struct dev_dax *dev_dax = ref_to_dev_dax(ref);
-
- dev_dbg(&dev_dax->dev, "%s\n", __func__);
- complete(&dev_dax->cmp);
-}
-
-static void dev_dax_percpu_exit(struct percpu_ref *ref)
-{
- struct dev_dax *dev_dax = ref_to_dev_dax(ref);
-
- dev_dbg(&dev_dax->dev, "%s\n", __func__);
- wait_for_completion(&dev_dax->cmp);
- percpu_ref_exit(ref);
-}
-
-static void dev_dax_percpu_kill(struct percpu_ref *data)
-{
- struct percpu_ref *ref = data;
- struct dev_dax *dev_dax = ref_to_dev_dax(ref);
-
- dev_dbg(&dev_dax->dev, "%s\n", __func__);
- percpu_ref_kill(ref);
-}
-
static int check_vma(struct dev_dax *dev_dax, struct vm_area_struct *vma,
const char *func)
{
@@ -459,15 +428,7 @@ int dev_dax_probe(struct device *dev)
return -EBUSY;
}
- init_completion(&dev_dax->cmp);
- rc = percpu_ref_init(&dev_dax->ref, dev_dax_percpu_release, 0,
- GFP_KERNEL);
- if (rc)
- return rc;
-
- dev_dax->pgmap.ref = &dev_dax->ref;
- dev_dax->pgmap.kill = dev_dax_percpu_kill;
- dev_dax->pgmap.cleanup = dev_dax_percpu_exit;
+ dev_dax->pgmap.type = MEMORY_DEVICE_DEVDAX;
addr = devm_memremap_pages(dev, &dev_dax->pgmap);
if (IS_ERR(addr))
return PTR_ERR(addr);
diff --git a/drivers/dax/pmem/core.c b/drivers/dax/pmem/core.c
index f9f51786d556..6eb6dfdf19bf 100644
--- a/drivers/dax/pmem/core.c
+++ b/drivers/dax/pmem/core.c
@@ -16,7 +16,7 @@ struct dev_dax *__dax_pmem_probe(struct device *dev, enum dev_dax_subsys subsys)
struct dev_dax *dev_dax;
struct nd_namespace_io *nsio;
struct dax_region *dax_region;
- struct dev_pagemap pgmap = { 0 };
+ struct dev_pagemap pgmap = { };
struct nd_namespace_common *ndns;
struct nd_dax *nd_dax = to_nd_dax(dev);
struct nd_pfn *nd_pfn = &nd_dax->nd_pfn;