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authorDan Williams <dan.j.williams@intel.com>2018-06-09 01:16:44 +0300
committerDan Williams <dan.j.williams@intel.com>2018-06-09 01:16:44 +0300
commit930218affeadd1325ea17e053f0dcecf218f5a4f (patch)
tree203c293668a88e03b9f292cf4d5a294ca8a4275a /include/linux/dax.h
parentb56845794e1e93121acb74ca325db965035d5545 (diff)
parent5d8beee20d89e34ff1dcb0da84adf7607858c59d (diff)
downloadlinux-930218affeadd1325ea17e053f0dcecf218f5a4f.tar.xz
Merge branch 'for-4.18/mcsafe' into libnvdimm-for-next
Diffstat (limited to 'include/linux/dax.h')
-rw-r--r--include/linux/dax.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/dax.h b/include/linux/dax.h
index 25bab6abb695..b51db4264c83 100644
--- a/include/linux/dax.h
+++ b/include/linux/dax.h
@@ -20,6 +20,9 @@ struct dax_operations {
/* copy_from_iter: required operation for fs-dax direct-i/o */
size_t (*copy_from_iter)(struct dax_device *, pgoff_t, void *, size_t,
struct iov_iter *);
+ /* copy_to_iter: required operation for fs-dax direct-i/o */
+ size_t (*copy_to_iter)(struct dax_device *, pgoff_t, void *, size_t,
+ struct iov_iter *);
};
extern struct attribute_group dax_attribute_group;
@@ -125,6 +128,8 @@ long dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, long nr_pages,
void **kaddr, pfn_t *pfn);
size_t dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr,
size_t bytes, struct iov_iter *i);
+size_t dax_copy_to_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr,
+ size_t bytes, struct iov_iter *i);
void dax_flush(struct dax_device *dax_dev, void *addr, size_t size);
ssize_t dax_iomap_rw(struct kiocb *iocb, struct iov_iter *iter,