X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Flov%2Flov_object.c;h=afe3b9f532070058b879dcf4cb03486ec53fed25;hb=49b17944e1a61f88bddb5595bb053a555c8c08da;hp=7d66e664382f95e5b5139c21a4b5acd4b4707048;hpb=2d686e9c9cc3c3c47cce92a0ff495b04efacd3a9;p=fs%2Flustre-release.git

diff --git a/lustre/lov/lov_object.c b/lustre/lov/lov_object.c
index 7d66e66..afe3b9f 100644
--- a/lustre/lov/lov_object.c
+++ b/lustre/lov/lov_object.c
@@ -333,6 +333,36 @@ static int lov_init_released(const struct lu_env *env,
 	return 0;
 }
 
+static struct cl_object *lov_find_subobj(const struct lu_env *env,
+					 struct lov_object *lov,
+					 struct lov_stripe_md *lsm,
+					 int stripe_idx)
+{
+	struct lov_device	*dev = lu2lov_dev(lov2lu(lov)->lo_dev);
+	struct lov_oinfo	*oinfo = lsm->lsm_oinfo[stripe_idx];
+	struct lov_thread_info  *lti = lov_env_info(env);
+	struct lu_fid		*ofid = &lti->lti_fid;
+	struct cl_device	*subdev;
+	int			ost_idx;
+	int			rc;
+	struct cl_object	*result;
+
+	if (lov->lo_type != LLT_RAID0)
+		GOTO(out, result = NULL);
+
+	ost_idx = oinfo->loi_ost_idx;
+	rc = ostid_to_fid(ofid, &oinfo->loi_oi, ost_idx);
+	if (rc != 0)
+		GOTO(out, result = NULL);
+
+	subdev = lovsub2cl_dev(dev->ld_target[ost_idx]);
+	result = lov_sub_find(env, subdev, ofid, NULL);
+out:
+	if (result == NULL)
+		result = ERR_PTR(-EINVAL);
+	return result;
+}
+
 static int lov_delete_empty(const struct lu_env *env, struct lov_object *lov,
 			    union lov_layout_state *state)
 {
@@ -975,6 +1005,570 @@ int lov_lock_init(const struct lu_env *env, struct cl_object *obj,
 				    io);
 }
 
+/**
+ * We calculate on which OST the mapping will end. If the length of mapping
+ * is greater than (stripe_size * stripe_count) then the last_stripe will
+ * will be one just before start_stripe. Else we check if the mapping
+ * intersects each OST and find last_stripe.
+ * This function returns the last_stripe and also sets the stripe_count
+ * over which the mapping is spread
+ *
+ * \param lsm [in]		striping information for the file
+ * \param fm_start [in]		logical start of mapping
+ * \param fm_end [in]		logical end of mapping
+ * \param start_stripe [in]	starting stripe of the mapping
+ * \param stripe_count [out]	the number of stripes across which to map is
+ *				returned
+ *
+ * \retval last_stripe		return the last stripe of the mapping
+ */
+static int fiemap_calc_last_stripe(struct lov_stripe_md *lsm,
+				   loff_t fm_start, loff_t fm_end,
+				   int start_stripe, int *stripe_count)
+{
+	int last_stripe;
+	loff_t obd_start;
+	loff_t obd_end;
+	int i, j;
+
+	if (fm_end - fm_start > lsm->lsm_stripe_size * lsm->lsm_stripe_count) {
+		last_stripe = (start_stripe < 1 ? lsm->lsm_stripe_count - 1 :
+							      start_stripe - 1);
+		*stripe_count = lsm->lsm_stripe_count;
+	} else {
+		for (j = 0, i = start_stripe; j < lsm->lsm_stripe_count;
+		     i = (i + 1) % lsm->lsm_stripe_count, j++) {
+			if ((lov_stripe_intersects(lsm, i, fm_start, fm_end,
+						   &obd_start, &obd_end)) == 0)
+				break;
+		}
+		*stripe_count = j;
+		last_stripe = (start_stripe + j - 1) % lsm->lsm_stripe_count;
+	}
+
+	return last_stripe;
+}
+
+/**
+ * Set fe_device and copy extents from local buffer into main return buffer.
+ *
+ * \param fiemap [out]		fiemap to hold all extents
+ * \param lcl_fm_ext [in]	array of fiemap extents get from OSC layer
+ * \param ost_index [in]	OST index to be written into the fm_device
+ *				field for each extent
+ * \param ext_count [in]	number of extents to be copied
+ * \param current_extent [in]	where to start copying in the extent array
+ */
+static void fiemap_prepare_and_copy_exts(struct fiemap *fiemap,
+					 struct ll_fiemap_extent *lcl_fm_ext,
+					 int ost_index, unsigned int ext_count,
+					 int current_extent)
+{
+	char		*to;
+	unsigned int	ext;
+
+	for (ext = 0; ext < ext_count; ext++) {
+		lcl_fm_ext[ext].fe_device = ost_index;
+		lcl_fm_ext[ext].fe_flags |= FIEMAP_EXTENT_NET;
+	}
+
+	/* Copy fm_extent's from fm_local to return buffer */
+	to = (char *)fiemap + fiemap_count_to_size(current_extent);
+	memcpy(to, lcl_fm_ext, ext_count * sizeof(struct ll_fiemap_extent));
+}
+
+#define FIEMAP_BUFFER_SIZE 4096
+
+/**
+ * Non-zero fe_logical indicates that this is a continuation FIEMAP
+ * call. The local end offset and the device are sent in the first
+ * fm_extent. This function calculates the stripe number from the index.
+ * This function returns a stripe_no on which mapping is to be restarted.
+ *
+ * This function returns fm_end_offset which is the in-OST offset at which
+ * mapping should be restarted. If fm_end_offset=0 is returned then caller
+ * will re-calculate proper offset in next stripe.
+ * Note that the first extent is passed to lov_get_info via the value field.
+ *
+ * \param fiemap [in]		fiemap request header
+ * \param lsm [in]		striping information for the file
+ * \param fm_start [in]		logical start of mapping
+ * \param fm_end [in]		logical end of mapping
+ * \param start_stripe [out]	starting stripe will be returned in this
+ */
+static loff_t fiemap_calc_fm_end_offset(struct fiemap *fiemap,
+					struct lov_stripe_md *lsm,
+					loff_t fm_start, loff_t fm_end,
+					int *start_stripe)
+{
+	loff_t local_end = fiemap->fm_extents[0].fe_logical;
+	loff_t lun_start;
+	loff_t lun_end;
+	loff_t fm_end_offset;
+	int stripe_no = -1;
+	int i;
+
+	if (fiemap->fm_extent_count == 0 ||
+	    fiemap->fm_extents[0].fe_logical == 0)
+		return 0;
+
+	/* Find out stripe_no from ost_index saved in the fe_device */
+	for (i = 0; i < lsm->lsm_stripe_count; i++) {
+		struct lov_oinfo *oinfo = lsm->lsm_oinfo[i];
+
+		if (lov_oinfo_is_dummy(oinfo))
+			continue;
+
+		if (oinfo->loi_ost_idx == fiemap->fm_extents[0].fe_device) {
+			stripe_no = i;
+			break;
+		}
+	}
+
+	if (stripe_no == -1)
+		return -EINVAL;
+
+	/* If we have finished mapping on previous device, shift logical
+	 * offset to start of next device */
+	if (lov_stripe_intersects(lsm, stripe_no, fm_start, fm_end,
+				  &lun_start, &lun_end) != 0 &&
+	    local_end < lun_end) {
+		fm_end_offset = local_end;
+		*start_stripe = stripe_no;
+	} else {
+		/* This is a special value to indicate that caller should
+		 * calculate offset in next stripe. */
+		fm_end_offset = 0;
+		*start_stripe = (stripe_no + 1) % lsm->lsm_stripe_count;
+	}
+
+	return fm_end_offset;
+}
+
+/**
+ * Break down the FIEMAP request and send appropriate calls to individual OSTs.
+ * This also handles the restarting of FIEMAP calls in case mapping overflows
+ * the available number of extents in single call.
+ *
+ * \param env [in]		lustre environment
+ * \param obj [in]		file object
+ * \param fmkey [in]		fiemap request header and other info
+ * \param fiemap [out]		fiemap buffer holding retrived map extents
+ * \param buflen [in/out]	max buffer length of @fiemap, when iterate
+ *				each OST, it is used to limit max map needed
+ * \retval 0	success
+ * \retval < 0	error
+ */
+static int lov_object_fiemap(const struct lu_env *env, struct cl_object *obj,
+			     struct ll_fiemap_info_key *fmkey,
+			     struct fiemap *fiemap, size_t *buflen)
+{
+	struct lov_stripe_md	*lsm;
+	struct cl_object	*subobj = NULL;
+	struct lov_obd		*lov = lu2lov_dev(obj->co_lu.lo_dev)->ld_lov;
+	struct fiemap		*fm_local = NULL;
+	struct ll_fiemap_extent	*lcl_fm_ext;
+	loff_t			fm_start;
+	loff_t			fm_end;
+	loff_t			fm_length;
+	loff_t			fm_end_offset;
+	int			count_local;
+	int			ost_index = 0;
+	int			start_stripe;
+	int			current_extent = 0;
+	int			rc = 0;
+	int			last_stripe;
+	int			cur_stripe = 0;
+	int			cur_stripe_wrap = 0;
+	int			stripe_count;
+	unsigned int		buffer_size = FIEMAP_BUFFER_SIZE;
+	/* Whether have we collected enough extents */
+	bool			enough = false;
+	/* EOF for object */
+	bool			ost_eof = false;
+	/* done with required mapping for this OST? */
+	bool			ost_done = false;
+	ENTRY;
+
+	lsm = lov_lsm_addref(cl2lov(obj));
+	if (lsm == NULL)
+		RETURN(-ENODATA);
+
+	/**
+	 * If the stripe_count > 1 and the application does not understand
+	 * DEVICE_ORDER flag, it cannot interpret the extents correctly.
+	 */
+	if (lsm->lsm_stripe_count > 1 && !(fiemap->fm_flags &
+					   FIEMAP_FLAG_DEVICE_ORDER))
+		GOTO(out, rc = -ENOTSUPP);
+
+	if (lsm_is_released(lsm)) {
+		if (fiemap->fm_start < fmkey->oa.o_size) {
+			/**
+			 * released file, return a minimal FIEMAP if
+			 * request fits in file-size.
+			 */
+			fiemap->fm_mapped_extents = 1;
+			fiemap->fm_extents[0].fe_logical = fiemap->fm_start;
+			if (fiemap->fm_start + fiemap->fm_length <
+			    fmkey->oa.o_size)
+				fiemap->fm_extents[0].fe_length =
+					fiemap->fm_length;
+			else
+				fiemap->fm_extents[0].fe_length =
+					fmkey->oa.o_size - fiemap->fm_start;
+			fiemap->fm_extents[0].fe_flags |=
+				FIEMAP_EXTENT_UNKNOWN | FIEMAP_EXTENT_LAST;
+		}
+		GOTO(out, rc = 0);
+	}
+
+	if (fiemap_count_to_size(fiemap->fm_extent_count) < buffer_size)
+		buffer_size = fiemap_count_to_size(fiemap->fm_extent_count);
+
+	OBD_ALLOC_LARGE(fm_local, buffer_size);
+	if (fm_local == NULL)
+		GOTO(out, rc = -ENOMEM);
+	lcl_fm_ext = &fm_local->fm_extents[0];
+	count_local = fiemap_size_to_count(buffer_size);
+
+	fm_start = fiemap->fm_start;
+	fm_length = fiemap->fm_length;
+	/* Calculate start stripe, last stripe and length of mapping */
+	start_stripe = lov_stripe_number(lsm, fm_start);
+	fm_end = (fm_length == ~0ULL) ? fmkey->oa.o_size :
+					fm_start + fm_length - 1;
+	/* If fm_length != ~0ULL but fm_start_fm_length-1 exceeds file size */
+	if (fm_end > fmkey->oa.o_size)
+		fm_end = fmkey->oa.o_size;
+
+	last_stripe = fiemap_calc_last_stripe(lsm, fm_start, fm_end,
+					      start_stripe, &stripe_count);
+	fm_end_offset = fiemap_calc_fm_end_offset(fiemap, lsm, fm_start, fm_end,
+						  &start_stripe);
+	if (fm_end_offset == -EINVAL)
+		GOTO(out, rc = -EINVAL);
+
+	/**
+	 * Requested extent count exceeds the fiemap buffer size, shrink our
+	 * ambition.
+	 */
+	if (fiemap_count_to_size(fiemap->fm_extent_count) > *buflen)
+		fiemap->fm_extent_count = fiemap_size_to_count(*buflen);
+	if (fiemap->fm_extent_count == 0)
+		count_local = 0;
+
+	/* Check each stripe */
+	for (cur_stripe = start_stripe; stripe_count > 0;
+	     --stripe_count,
+	     cur_stripe = (cur_stripe + 1) % lsm->lsm_stripe_count) {
+		loff_t req_fm_len; /* Stores length of required mapping */
+		loff_t len_mapped_single_call;
+		loff_t lun_start;
+		loff_t lun_end;
+		loff_t obd_object_end;
+		unsigned int ext_count;
+
+		cur_stripe_wrap = cur_stripe;
+
+		/* Find out range of mapping on this stripe */
+		if ((lov_stripe_intersects(lsm, cur_stripe, fm_start, fm_end,
+					   &lun_start, &obd_object_end)) == 0)
+			continue;
+
+		if (lov_oinfo_is_dummy(lsm->lsm_oinfo[cur_stripe]))
+			GOTO(out, rc = -EIO);
+
+		/* If this is a continuation FIEMAP call and we are on
+		 * starting stripe then lun_start needs to be set to
+		 * fm_end_offset */
+		if (fm_end_offset != 0 && cur_stripe == start_stripe)
+			lun_start = fm_end_offset;
+
+		if (fm_length != ~0ULL) {
+			/* Handle fm_start + fm_length overflow */
+			if (fm_start + fm_length < fm_start)
+				fm_length = ~0ULL - fm_start;
+			lun_end = lov_size_to_stripe(lsm, fm_start + fm_length,
+						     cur_stripe);
+		} else {
+			lun_end = ~0ULL;
+		}
+
+		if (lun_start == lun_end)
+			continue;
+
+		req_fm_len = obd_object_end - lun_start;
+		fm_local->fm_length = 0;
+		len_mapped_single_call = 0;
+
+		/* find lobsub object */
+		subobj = lov_find_subobj(env, cl2lov(obj), lsm,
+					     cur_stripe);
+		if (IS_ERR(subobj))
+			GOTO(out, rc = PTR_ERR(subobj));
+		/* If the output buffer is very large and the objects have many
+		 * extents we may need to loop on a single OST repeatedly */
+		ost_eof = false;
+		ost_done = false;
+		do {
+			if (fiemap->fm_extent_count > 0) {
+				/* Don't get too many extents. */
+				if (current_extent + count_local >
+				    fiemap->fm_extent_count)
+					count_local = fiemap->fm_extent_count -
+						      current_extent;
+			}
+
+			lun_start += len_mapped_single_call;
+			fm_local->fm_length = req_fm_len -
+					      len_mapped_single_call;
+			req_fm_len = fm_local->fm_length;
+			fm_local->fm_extent_count = enough ? 1 : count_local;
+			fm_local->fm_mapped_extents = 0;
+			fm_local->fm_flags = fiemap->fm_flags;
+
+			ost_index = lsm->lsm_oinfo[cur_stripe]->loi_ost_idx;
+
+			if (ost_index < 0 ||
+			    ost_index >= lov->desc.ld_tgt_count)
+				GOTO(obj_put, rc = -EINVAL);
+			/* If OST is inactive, return extent with UNKNOWN
+			 * flag. */
+			if (!lov->lov_tgts[ost_index]->ltd_active) {
+				fm_local->fm_flags |= FIEMAP_EXTENT_LAST;
+				fm_local->fm_mapped_extents = 1;
+
+				lcl_fm_ext[0].fe_logical = lun_start;
+				lcl_fm_ext[0].fe_length = obd_object_end -
+							  lun_start;
+				lcl_fm_ext[0].fe_flags |= FIEMAP_EXTENT_UNKNOWN;
+
+				goto inactive_tgt;
+			}
+
+			fm_local->fm_start = lun_start;
+			fm_local->fm_flags &= ~FIEMAP_FLAG_DEVICE_ORDER;
+			memcpy(&fmkey->fiemap, fm_local, sizeof(*fm_local));
+			*buflen = fiemap_count_to_size(
+						fm_local->fm_extent_count);
+
+			rc = cl_object_fiemap(env, subobj, fmkey, fm_local,
+					      buflen);
+			if (rc != 0)
+				GOTO(obj_put, rc);
+inactive_tgt:
+			ext_count = fm_local->fm_mapped_extents;
+			if (ext_count == 0) {
+				ost_done = true;
+				/* If last stripe has hold at the end,
+				 * we need to return */
+				if (cur_stripe_wrap == last_stripe) {
+					fiemap->fm_mapped_extents = 0;
+					goto finish;
+				}
+				break;
+			} else if (enough) {
+				/*
+				 * We've collected enough extents and there are
+				 * more extents after it.
+				 */
+				goto finish;
+			}
+
+			/* If we just need num of extents, got to next device */
+			if (fiemap->fm_extent_count == 0) {
+				current_extent += ext_count;
+				break;
+			}
+
+			/* prepare to copy retrived map extents */
+			len_mapped_single_call =
+				lcl_fm_ext[ext_count - 1].fe_logical -
+				lun_start + lcl_fm_ext[ext_count - 1].fe_length;
+
+			/* Have we finished mapping on this device? */
+			if (req_fm_len <= len_mapped_single_call)
+				ost_done = true;
+
+			/* Clear the EXTENT_LAST flag which can be present on
+			 * the last extent */
+			if (lcl_fm_ext[ext_count - 1].fe_flags &
+			    FIEMAP_EXTENT_LAST)
+				lcl_fm_ext[ext_count - 1].fe_flags &=
+							~FIEMAP_EXTENT_LAST;
+			if (lov_stripe_size(lsm,
+					lcl_fm_ext[ext_count - 1].fe_logical +
+					lcl_fm_ext[ext_count - 1].fe_length,
+					cur_stripe) >= fmkey->oa.o_size)
+				ost_eof = true;
+
+			fiemap_prepare_and_copy_exts(fiemap, lcl_fm_ext,
+						     ost_index, ext_count,
+						     current_extent);
+			current_extent += ext_count;
+
+			/* Ran out of available extents? */
+			if (current_extent >= fiemap->fm_extent_count)
+				enough = true;
+		} while (!ost_done && !ost_eof);
+
+		cl_object_put(env, subobj);
+		subobj = NULL;
+
+		if (cur_stripe_wrap == last_stripe)
+			goto finish;
+	} /* for each stripe */
+finish:
+	/* Indicate that we are returning device offsets unless file just has
+	 * single stripe */
+	if (lsm->lsm_stripe_count > 1)
+		fiemap->fm_flags |= FIEMAP_FLAG_DEVICE_ORDER;
+
+	if (fiemap->fm_extent_count == 0)
+		goto skip_last_device_calc;
+
+	/* Check if we have reached the last stripe and whether mapping for that
+	 * stripe is done. */
+	if ((cur_stripe_wrap == last_stripe) && (ost_done || ost_eof))
+		fiemap->fm_extents[current_extent - 1].fe_flags |=
+							     FIEMAP_EXTENT_LAST;
+skip_last_device_calc:
+	fiemap->fm_mapped_extents = current_extent;
+obj_put:
+	if (subobj != NULL)
+		cl_object_put(env, subobj);
+out:
+	if (fm_local != NULL)
+		OBD_FREE_LARGE(fm_local, buffer_size);
+	lov_lsm_put(obj, lsm);
+	RETURN(rc);
+}
+
+static int lov_dispatch_obd_info_get(const struct lu_env *env,
+				     struct cl_object *obj,
+				     struct obd_info *oinfo,
+				     struct ptlrpc_request_set *set)
+{
+	struct cl_object	*subobj = NULL;
+	struct lov_obd		*lov = lu2lov_dev(obj->co_lu.lo_dev)->ld_lov;
+	struct lov_request_set	*lovset;
+	struct list_head	*pos;
+	struct lov_request	*req;
+	int			rc;
+	int			rc2;
+	ENTRY;
+
+	rc = lov_prep_getattr_set(lov2obd(lov)->obd_self_export, oinfo,
+				  &lovset);
+	if (rc != 0)
+		RETURN(rc);
+
+	CDEBUG(D_INFO, "objid "DOSTID": %ux%u byte stripes.\n",
+	       POSTID(&oinfo->oi_md->lsm_oi),
+	       oinfo->oi_md->lsm_stripe_count,
+	       oinfo->oi_md->lsm_stripe_size);
+
+	list_for_each(pos, &lovset->set_list) {
+		req = list_entry(pos, struct lov_request, rq_link);
+
+		CDEBUG(D_INFO, "objid "DOSTID"[%d] has subobj "DOSTID" at idx"
+		       "%u\n", POSTID(&oinfo->oi_oa->o_oi), req->rq_stripe,
+		       POSTID(&req->rq_oi.oi_oa->o_oi), req->rq_idx);
+		subobj = lov_find_subobj(env, cl2lov(obj), oinfo->oi_md,
+					 req->rq_stripe);
+		if (IS_ERR(subobj))
+			GOTO(errout, rc = PTR_ERR(subobj));
+
+		rc = cl_object_obd_info_get(env, subobj, &req->rq_oi, set);
+		cl_object_put(env, subobj);
+		if (rc != 0) {
+			CERROR("%s: getattr objid "DOSTID" subobj"
+			       DOSTID" on OST idx %d: rc = %d\n",
+			       lov2obd(lov)->obd_name,
+			       POSTID(&oinfo->oi_oa->o_oi),
+			       POSTID(&req->rq_oi.oi_oa->o_oi),
+			       req->rq_idx, rc);
+			GOTO(errout, rc);
+		}
+	}
+
+	if (!list_empty(&set->set_requests)) {
+		LASSERT(rc == 0);
+		LASSERT(set->set_interpret == NULL);
+		set->set_interpret = lov_getattr_interpret;
+		set->set_arg = lovset;
+		GOTO(out, rc);
+	}
+errout:
+	if (rc)
+		atomic_set(&lovset->set_completes, 0);
+	rc2 = lov_fini_getattr_set(lovset);
+	rc = rc != 0 ? rc : rc2;
+out:
+	RETURN(rc);
+}
+
+static int lov_object_data_version(const struct lu_env *env,
+				   struct cl_object *obj, __u64 *data_version,
+				   int flags)
+{
+	struct ptlrpc_request_set	*set;
+	struct obd_info			oinfo =  { { { 0 } } };
+	struct obdo			*obdo = NULL;
+	struct lov_stripe_md		*lsm;
+	int				rc;
+	ENTRY;
+
+	lsm = lov_lsm_addref(cl2lov(obj));
+	if (!lsm_has_objects(lsm)) {
+		/* If no stripe, we consider version is 0. */
+		*data_version = 0;
+		GOTO(out, rc = 0);
+	}
+
+	OBD_ALLOC_PTR(obdo);
+	if (obdo == NULL)
+		GOTO(out, rc = -ENOMEM);
+
+	oinfo.oi_md = lsm;
+	oinfo.oi_oa = obdo;
+	obdo->o_oi = lsm->lsm_oi;
+	obdo->o_mode = S_IFREG;
+	obdo->o_valid = OBD_MD_FLID | OBD_MD_FLGROUP | OBD_MD_FLTYPE;
+	if (flags & (LL_DV_RD_FLUSH | LL_DV_WR_FLUSH)) {
+		obdo->o_valid |= OBD_MD_FLFLAGS;
+		obdo->o_flags |= OBD_FL_SRVLOCK;
+		if (flags & LL_DV_WR_FLUSH)
+			obdo->o_flags |= OBD_FL_FLUSH;
+	}
+
+	set = ptlrpc_prep_set();
+	if (set == NULL)
+		GOTO(out_obdo, rc = -ENOMEM);
+
+	rc = lov_dispatch_obd_info_get(env, obj, &oinfo, set);
+	if (rc == 0)
+		rc = ptlrpc_set_wait(set);
+	ptlrpc_set_destroy(set);
+	if (rc == 0) {
+		oinfo.oi_oa->o_valid &= OBD_MD_FLDATAVERSION | OBD_MD_FLFLAGS;
+		if (flags & LL_DV_WR_FLUSH &&
+		    !(oinfo.oi_oa->o_valid & OBD_MD_FLFLAGS &&
+		      oinfo.oi_oa->o_flags & OBD_FL_FLUSH))
+			rc = -EOPNOTSUPP;
+		else if (!(obdo->o_valid & OBD_MD_FLDATAVERSION))
+			rc = -EOPNOTSUPP;
+		else
+			*data_version = obdo->o_data_version;
+	}
+out_obdo:
+	OBD_FREE_PTR(obdo);
+out:
+	lov_lsm_put(obj, lsm);
+	RETURN(rc);
+}
+
 static int lov_object_getstripe(const struct lu_env *env, struct cl_object *obj,
 				struct lov_user_md __user *lum)
 {
@@ -1013,7 +1607,9 @@ static const struct cl_object_operations lov_ops = {
 	.coo_attr_update  = lov_attr_update,
 	.coo_conf_set     = lov_conf_set,
 	.coo_getstripe    = lov_object_getstripe,
-	.coo_find_cbdata  = lov_object_find_cbdata
+	.coo_find_cbdata  = lov_object_find_cbdata,
+	.coo_fiemap       = lov_object_fiemap,
+	.coo_data_version = lov_object_data_version,
 };
 
 static const struct lu_object_operations lov_lu_obj_ops = {