1 files changed, 9 insertions, 7 deletions

diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h
index 084d3c622b12..29818fc3fa49 100644
--- a/include/linux/ceph/libceph.h
+++ b/include/linux/ceph/libceph.h
@@ -193,6 +193,8 @@ static inline int calc_pages_for(u64 off, u64 len)
 }
 
 /* ceph_common.c */
+extern bool libceph_compatible(void *data);
+
 extern const char *ceph_msg_type_name(int type);
 extern int ceph_check_fsid(struct ceph_client *client, struct ceph_fsid *fsid);
 extern struct kmem_cache *ceph_inode_cachep;
@@ -220,7 +222,7 @@ extern int ceph_open_session(struct ceph_client *client);
 /* pagevec.c */
 extern void ceph_release_page_vector(struct page **pages, int num_pages);
 
-extern struct page **ceph_get_direct_page_vector(const char __user *data,
+extern struct page **ceph_get_direct_page_vector(const void __user *data,
                                                  int num_pages,
                                                  bool write_page);
 extern void ceph_put_page_vector(struct page **pages, int num_pages,
@@ -228,15 +230,15 @@ extern void ceph_put_page_vector(struct page **pages, int num_pages,
 extern void ceph_release_page_vector(struct page **pages, int num_pages);
 extern struct page **ceph_alloc_page_vector(int num_pages, gfp_t flags);
 extern int ceph_copy_user_to_page_vector(struct page **pages,
-                                         const char __user *data,
+                                         const void __user *data,
                                          loff_t off, size_t len);
-extern int ceph_copy_to_page_vector(struct page **pages,
-                                    const char *data,
+extern void ceph_copy_to_page_vector(struct page **pages,
+                                    const void *data,
                                     loff_t off, size_t len);
-extern int ceph_copy_from_page_vector(struct page **pages,
-                                    char *data,
+extern void ceph_copy_from_page_vector(struct page **pages,
+                                    void *data,
                                     loff_t off, size_t len);
-extern int ceph_copy_page_vector_to_user(struct page **pages, char __user *data,
+extern int ceph_copy_page_vector_to_user(struct page **pages, void __user *data,
                                     loff_t off, size_t len);
 extern void ceph_zero_page_vector_range(int off, int len, struct page **pages);