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authorDan Williams <dan.j.williams@intel.com>2018-06-08 15:16:44 -0700
committerDan Williams <dan.j.williams@intel.com>2018-06-08 15:16:44 -0700
commit930218affeadd1325ea17e053f0dcecf218f5a4f (patch)
tree203c293668a88e03b9f292cf4d5a294ca8a4275a /drivers/dax
parentb56845794e1e93121acb74ca325db965035d5545 (diff)
parent5d8beee20d89e34ff1dcb0da84adf7607858c59d (diff)
Merge branch 'for-4.18/mcsafe' into libnvdimm-for-next
Diffstat (limited to 'drivers/dax')
-rw-r--r--drivers/dax/super.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/dax/super.c b/drivers/dax/super.c
index 60d01b5d2a67..88e77b7f0c4b 100644
--- a/drivers/dax/super.c
+++ b/drivers/dax/super.c
@@ -287,6 +287,16 @@ size_t dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr,
}
EXPORT_SYMBOL_GPL(dax_copy_from_iter);
+size_t dax_copy_to_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr,
+ size_t bytes, struct iov_iter *i)
+{
+ if (!dax_alive(dax_dev))
+ return 0;
+
+ return dax_dev->ops->copy_to_iter(dax_dev, pgoff, addr, bytes, i);
+}
+EXPORT_SYMBOL_GPL(dax_copy_to_iter);
+
#ifdef CONFIG_ARCH_HAS_PMEM_API
void arch_wb_cache_pmem(void *addr, size_t size);
void dax_flush(struct dax_device *dax_dev, void *addr, size_t size)