diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h
index 0d6ee04b4c41..40db6d8e280e 100644
--- a/include/linux/ceph/osd_client.h
+++ b/include/linux/ceph/osd_client.h
@@ -136,6 +136,13 @@ struct ceph_osd_req_op {
 			u64 expected_object_size;
 			u64 expected_write_size;
 		} alloc_hint;
+		struct {
+			u64 snapid;
+			u64 src_version;
+			u8 flags;
+			u32 src_fadvise_flags;
+			struct ceph_osd_data osd_data;
+		} copy_from;
 	};
 };
 
@@ -511,6 +518,17 @@ extern int ceph_osdc_writepages(struct ceph_osd_client *osdc,
 				struct timespec *mtime,
 				struct page **pages, int nr_pages);
 
+extern int ceph_osdc_copy_from(struct ceph_osd_client *osdc,
+			       struct ceph_vino src_vino,
+			       u64 src_version,
+			       struct ceph_object_id *src_oid,
+			       struct ceph_object_locator *src_oloc,
+			       u32 src_fadvise_flags,
+			       struct ceph_vino dst_vino,
+			       struct ceph_object_id *dst_oid,
+			       struct ceph_object_locator *dst_oloc,
+			       u8 dst_fadvise_flags);
+
 /* watch/notify */
 struct ceph_osd_linger_request *
 ceph_osdc_watch(struct ceph_osd_client *osdc,
diff --git a/include/linux/ceph/rados.h b/include/linux/ceph/rados.h
index f1988387c5ad..d47540986eff 100644
--- a/include/linux/ceph/rados.h
+++ b/include/linux/ceph/rados.h
@@ -410,6 +410,14 @@ enum {
 enum {
 	CEPH_OSD_OP_FLAG_EXCL = 1,      /* EXCL object create */
 	CEPH_OSD_OP_FLAG_FAILOK = 2,    /* continue despite failure */
+	CEPH_OSD_OP_FLAG_FADVISE_RANDOM	    = 0x4, /* the op is random */
+	CEPH_OSD_OP_FLAG_FADVISE_SEQUENTIAL = 0x8, /* the op is sequential */
+	CEPH_OSD_OP_FLAG_FADVISE_WILLNEED   = 0x10,/* data will be accessed in
+						      the near future */
+	CEPH_OSD_OP_FLAG_FADVISE_DONTNEED   = 0x20,/* data will not be accessed
+						      in the near future */
+	CEPH_OSD_OP_FLAG_FADVISE_NOCACHE    = 0x40,/* data will be accessed only
+						      once by this client */
 };
 
 #define EOLDSNAPC    ERESTART  /* ORDERSNAP flag set; writer has old snapc*/
@@ -497,6 +505,17 @@ struct ceph_osd_op {
 			__le64 expected_object_size;
 			__le64 expected_write_size;
 		} __attribute__ ((packed)) alloc_hint;
+		struct {
+			__le64 snapid;
+			__le64 src_version;
+			__u8 flags;
+			/*
+			 * __le32 flags: CEPH_OSD_OP_FLAG_FADVISE_: mean the
+			 * fadvise flags for dest object src_fadvise_flags mean
+			 * the fadvise flags for src object
+			 */
+			__le32 src_fadvise_flags;
+		} __attribute__ ((packed)) copy_from;
 	};
 	__le32 payload_len;
 } __attribute__ ((packed));
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index a00c74f1154e..29f3b5c01623 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -955,6 +955,14 @@ static u32 osd_req_encode_op(struct ceph_osd_op *dst,
 	case CEPH_OSD_OP_CREATE:
 	case CEPH_OSD_OP_DELETE:
 		break;
+	case CEPH_OSD_OP_COPY_FROM:
+		dst->copy_from.snapid = cpu_to_le64(src->copy_from.snapid);
+		dst->copy_from.src_version =
+			cpu_to_le64(src->copy_from.src_version);
+		dst->copy_from.flags = src->copy_from.flags;
+		dst->copy_from.src_fadvise_flags =
+			cpu_to_le32(src->copy_from.src_fadvise_flags);
+		break;
 	default:
 		pr_err("unsupported osd opcode %s\n",
 			ceph_osd_op_name(src->op));
@@ -1908,6 +1916,10 @@ static void setup_request_data(struct ceph_osd_request *req,
 			ceph_osdc_msg_data_add(req->r_reply,
 					       &op->notify.response_data);
 			break;
+		case CEPH_OSD_OP_COPY_FROM:
+			ceph_osdc_msg_data_add(msg,
+					       &op->copy_from.osd_data);
+			break;
 		}
 
 		data_len += op->indata_len;
@@ -5168,6 +5180,67 @@ int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino,
 }
 EXPORT_SYMBOL(ceph_osdc_writepages);
 
+int ceph_osdc_copy_from(struct ceph_osd_client *osdc,
+			struct ceph_vino src_vino,
+			u64 src_version,
+			struct ceph_object_id *src_oid,
+			struct ceph_object_locator *src_oloc,
+			u32 src_fadvise_flags,
+			struct ceph_vino dst_vino,
+			struct ceph_object_id *dst_oid,
+			struct ceph_object_locator *dst_oloc,
+			u8 dst_fadvise_flags)
+{
+	struct ceph_osd_request *req = NULL;
+	struct ceph_options *opts = osdc->client->options;
+	struct ceph_osd_req_op *op;
+	struct page **pages;
+	void *p, *end;
+	int ret;
+
+	pages = ceph_alloc_page_vector(1, GFP_NOIO);
+	if (IS_ERR(pages))
+		return PTR_ERR(pages);
+	req = ceph_osdc_alloc_request(osdc, NULL, 1, false, GFP_NOIO);
+	if (!req) {
+		ret = -ENOMEM;
+		goto out;
+	}
+	req->r_flags = CEPH_OSD_FLAG_WRITE;
+	op = _osd_req_op_init(req, 0, CEPH_OSD_OP_COPY_FROM, 0);
+	op->copy_from.snapid = src_vino.snap;
+	op->copy_from.src_version = src_version;
+	op->copy_from.flags = dst_fadvise_flags;
+	op->copy_from.src_fadvise_flags = src_fadvise_flags;
+
+	ceph_oloc_copy(&req->r_t.base_oloc, dst_oloc);
+	ceph_oid_copy(&req->r_t.base_oid, dst_oid);
+
+	p = page_address(pages[0]);
+	end = p + PAGE_SIZE;
+	ceph_encode_string(&p, end, src_oid->name, src_oid->name_len);
+	encode_oloc(&p, end, src_oloc);
+	op->indata_len = PAGE_SIZE - (end - p);
+
+	ceph_osd_data_pages_init(&op->copy_from.osd_data, pages,
+				 op->indata_len, 0,
+				 false, true);
+	req->r_snapid = dst_vino.snap;
+	req->r_data_offset = 0; /* XXX dst_off? */
+
+	ret = ceph_osdc_alloc_messages(req, GFP_NOFS);
+	if (ret)
+		goto out;
+	ceph_osdc_start_request(osdc, req, false);
+	ret = wait_request_timeout(req, opts->mount_timeout);
+out:
+	ceph_release_page_vector(pages, 1);
+	if (req)
+		ceph_osdc_put_request(req);
+	return ret;
+}
+EXPORT_SYMBOL(ceph_osdc_copy_from);
+
 int __init ceph_osdc_setup(void)
 {
 	size_t size = sizeof(struct ceph_osd_request) +
