diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 5e579fa..a9d88a0 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -1350,17 +1350,13 @@ static struct ceph_osd_request *rbd_osd_req_create(
 		break;		/* Nothing to do */
 	case OBJ_REQUEST_BIO:
 		rbd_assert(obj_request->bio_list != NULL);
-		osd_data->type = CEPH_OSD_DATA_TYPE_BIO;
-		osd_data->bio = obj_request->bio_list;
-		osd_data->bio_length = obj_request->length;
+		ceph_osd_data_bio_init(osd_data, obj_request->bio_list,
+					obj_request->length);
 		break;
 	case OBJ_REQUEST_PAGES:
-		osd_data->type = CEPH_OSD_DATA_TYPE_PAGES;
-		osd_data->pages = obj_request->pages;
-		osd_data->length = obj_request->length;
-		osd_data->alignment = offset & ~PAGE_MASK;
-		osd_data->pages_from_pool = false;
-		osd_data->own_pages = false;
+		ceph_osd_data_pages_init(osd_data, obj_request->pages,
+				obj_request->length, offset & ~PAGE_MASK,
+				false, false);
 		break;
 	}

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index e0dd74c..8507389 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -342,10 +342,8 @@ static int start_read(struct inode *inode, struct
list_head *page_list, int max)
 		}
 		pages[i] = page;
 	}
-	req->r_data_in.type = CEPH_OSD_DATA_TYPE_PAGES;
-	req->r_data_in.pages = pages;
-	req->r_data_in.length = len;
-	req->r_data_in.alignment = 0;
+	ceph_osd_data_pages_init(&req->r_data_in, pages, len, 0,
+					false, false);
 	req->r_callback = finish_read;
 	req->r_inode = inode;

@@ -917,11 +915,8 @@ get_more_pages:
 		dout("writepages got %d pages at %llu~%llu\n",
 		     locked_pages, offset, len);

-		req->r_data_out.type = CEPH_OSD_DATA_TYPE_PAGES;
-		req->r_data_out.pages = pages;
-		req->r_data_out.length = len;
-		req->r_data_out.alignment = 0;
-		req->r_data_out.pages_from_pool = !!pool;
+		ceph_osd_data_pages_init(&req->r_data_out, pages, len, 0,
+						!!pool, false);

 		pages = NULL;	/* request message now owns the pages array */
 		pool = NULL;
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 66b8469..2f2d0a1 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -491,6 +491,7 @@ static ssize_t ceph_sync_write(struct file *file,
const char __user *data,
 	unsigned long buf_align;
 	int ret;
 	struct timespec mtime = CURRENT_TIME;
+	bool own_pages = false;

 	if (ceph_snap(file->f_dentry->d_inode) != CEPH_NOSNAP)
 		return -EROFS;
@@ -571,14 +572,11 @@ more:
 		if ((file->f_flags & O_SYNC) == 0) {
 			/* get a second commit callback */
 			req->r_safe_callback = sync_write_commit;
-			req->r_data_out.own_pages = 1;
+			own_pages = true;
 		}
 	}
-	req->r_data_out.type = CEPH_OSD_DATA_TYPE_PAGES;
-	req->r_data_out.pages = pages;
-	req->r_data_out.length = len;
-	req->r_data_out.alignment = page_align;
-	req->r_inode = inode;
+	ceph_osd_data_pages_init(&req->r_data_out, pages, len, page_align,
+					false, own_pages);

 	/* BUG_ON(vino.snap != CEPH_NOSNAP); */
 	ceph_osdc_build_request(req, pos, num_ops, ops,
diff --git a/include/linux/ceph/osd_client.h
b/include/linux/ceph/osd_client.h
index 5ee1a37..af60dac 100644
--- a/include/linux/ceph/osd_client.h
+++ b/include/linux/ceph/osd_client.h
@@ -280,6 +280,17 @@ static inline void ceph_osdc_put_request(struct
ceph_osd_request *req)
 	kref_put(&req->r_kref, ceph_osdc_release_request);
 }

+extern void ceph_osd_data_pages_init(struct ceph_osd_data *osd_data,
+				     struct page **pages, u64 length,
+				     u32 alignment, bool pages_from_pool,
+				     bool own_pages);
+extern void ceph_osd_data_pagelist_init(struct ceph_osd_data *osd_data,
+					struct ceph_pagelist *pagelist);
+#ifdef CONFIG_BLOCK
+extern void ceph_osd_data_bio_init(struct ceph_osd_data *osd_data,
+				   struct bio *bio, size_t bio_length);
+#endif /* CONFIG_BLOCK */
+
 extern int ceph_osdc_start_request(struct ceph_osd_client *osdc,
 				   struct ceph_osd_request *req,
 				   bool nofail);
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 1379b33..f8f8561 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -79,6 +79,38 @@ static int calc_layout(struct ceph_file_layout
*layout, u64 off, u64 *plen,
 	return 0;
 }

+void ceph_osd_data_pages_init(struct ceph_osd_data *osd_data,
+			struct page **pages, u64 length, u32 alignment,
+			bool pages_from_pool, bool own_pages)
+{
+	osd_data->type = CEPH_OSD_DATA_TYPE_PAGES;
+	osd_data->pages = pages;
+	osd_data->length = length;
+	osd_data->alignment = alignment;
+	osd_data->pages_from_pool = pages_from_pool;
+	osd_data->own_pages = own_pages;
+}
+EXPORT_SYMBOL(ceph_osd_data_pages_init);
+
+void ceph_osd_data_pagelist_init(struct ceph_osd_data *osd_data,
+			struct ceph_pagelist *pagelist)
+{
+	osd_data->type = CEPH_OSD_DATA_TYPE_PAGELIST;
+	osd_data->pagelist = pagelist;
+}
+EXPORT_SYMBOL(ceph_osd_data_pagelist_init);
+
+#ifdef CONFIG_BLOCK
+void ceph_osd_data_bio_init(struct ceph_osd_data *osd_data,
+			struct bio *bio, size_t bio_length)
+{
+	osd_data->type = CEPH_OSD_DATA_TYPE_BIO;
+	osd_data->bio = bio;
+	osd_data->bio_length = bio_length;
+}
+EXPORT_SYMBOL(ceph_osd_data_bio_init);
+#endif /* CONFIG_BLOCK */
+
 /*
  * requests
