- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- struct mds_body *body = NULL;
- struct ll_fid rpfid = *pfid;
- struct lmv_obj *obj;
- struct mea *mea;
- int rc, mds;
- ENTRY;
-
- /* IT_OPEN is intended to open (and create, possible) an object.
- * parent (pfid) may be splitted dir */
-
- mds = pfid->mds;
- obj = lmv_grab_obj(obd, pfid, 0);
- if (obj) {
- /* directory is already splitted, so we have to forward
- * request to the right MDS */
- mds = raw_name2idx(obj->objcount, name, len);
- rpfid = obj->objs[mds].fid;
- CDEBUG(D_OTHER, "forward to MDS #%u\n", mds);
- }
-
- rc = md_intent_lock(lmv->tgts[mds].exp, uctxt, &rpfid, name, len,
- lmm, lmmsize, cfid, it, flags, reqp, cb_blocking);
-
- lmv_put_obj(obj);
- if (rc != 0)
- RETURN(rc);
-
- /* okay, MDS has returned success. probably name has been
- * resolved in remote inode */
- rc = lmv_handle_remote_inode(exp, uctxt, lmm, lmmsize, it, flags,
- reqp, cb_blocking);
- if (rc != 0) {
- LASSERT(rc < 0);
- RETURN(rc);
- }
-
- /* caller may use attrs MDS returns on IT_OPEN lock request
- * so, we have to update them for splitted dir */
- body = lustre_msg_buf((*reqp)->rq_repmsg, 1, sizeof(*body));
- LASSERT(body != NULL);
- cfid = &body->fid1;
- obj = lmv_grab_obj(obd, cfid, 0);
- if (rc == 0 && !obj && (mea = is_body_of_splitted_dir(*reqp, 1))) {
- /* wow! this is splitted dir, we'd like to handle it */
- rc = lmv_create_obj_from_attrs(exp, &body->fid1, mea);
- }
- obj = lmv_grab_obj(obd, cfid, 0);
- if (obj) {
- /* this is splitted dir and we'd want to get attrs */
- CDEBUG(D_OTHER, "attrs from slaves for %lu/%lu/%lu\n",
- (unsigned long) cfid->mds,
- (unsigned long) cfid->id,
- (unsigned long) cfid->generation);
- rc = lmv_revalidate_slaves(exp, reqp, cfid,
- it, 1, cb_blocking);
- } else if (S_ISDIR(body->mode)) {
- /*CWARN("hmmm, %lu/%lu/%lu has not lmv obj?!\n",
- (unsigned long) cfid->mds,
- (unsigned long) cfid->id,
- (unsigned long) cfid->generation);*/
- }
- lmv_put_obj(obj);
- RETURN(rc);
-}
-
-int lmv_intent_getattr(struct obd_export *exp, struct ll_uctxt *uctxt,
- struct ll_fid *pfid, const char *name, int len,
- void *lmm, int lmmsize, struct ll_fid *cfid,
- struct lookup_intent *it, int flags,
- struct ptlrpc_request **reqp,
- ldlm_blocking_callback cb_blocking)
-{
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- struct mds_body *body = NULL;
- struct ll_fid rpfid = *pfid;
- struct lmv_obj *obj, *obj2;
- struct mea *mea;
- int rc = 0, mds;
- ENTRY;
-
- if (cfid) {
- /* caller wants to revalidate attrs of obj
- * we have to revalidate slaves if requested
- * object is splitted directory */
- CDEBUG(D_OTHER, "revalidate attrs for %lu/%lu/%lu\n",
- (unsigned long) cfid->mds,
- (unsigned long) cfid->id,
- (unsigned long) cfid->generation);
- mds = cfid->mds;
- obj = lmv_grab_obj(obd, cfid, 0);
- if (obj) {
- /* in fact, we need not this with current
- * _intent_lock(), but it may change some day */
- rpfid = obj->objs[mds].fid;
- }
- rc = md_intent_lock(lmv->tgts[mds].exp, uctxt, &rpfid, name,
- len, lmm, lmmsize, cfid, it, flags, reqp,
- cb_blocking);
- if (obj && rc >= 0) {
- /* this is splitted dir. in order to optimize things
- * a bit, we consider obj valid updating missing
- * parts. FIXME: do we need to return any lock here?
- * it would be fine if we don't. this means that
- * nobody should use UPDATE lock to notify about
- * object removal */
- CDEBUG(D_OTHER,
- "revalidate slaves for %lu/%lu/%lu, rc %d\n",
- (unsigned long) cfid->mds,
- (unsigned long) cfid->id,
- (unsigned long) cfid->generation, rc);
- rc = lmv_revalidate_slaves(exp, reqp, cfid, it, rc,
- cb_blocking);
- }
- RETURN(rc);
- }
-
- CDEBUG(D_OTHER, "INTENT getattr for %*s on %lu/%lu/%lu\n",
- len, name, (unsigned long) pfid->mds,
- (unsigned long) pfid->id,
- (unsigned long) pfid->generation);
-
- mds = pfid->mds;
- obj = lmv_grab_obj(obd, pfid, 0);
- if (obj && len) {
- /* directory is already splitted. calculate mds */
- mds = raw_name2idx(obj->objcount, (char *) name, len);
- rpfid = obj->objs[mds].fid;
- CDEBUG(D_OTHER, "forward to MDS #%u (slave %lu/%lu/%lu)\n",
- mds, (unsigned long) rpfid.mds,
- (unsigned long) rpfid.id,
- (unsigned long) rpfid.generation);
- }
- rc = md_intent_lock(lmv->tgts[mds].exp, uctxt, &rpfid, name,
- len, lmm, lmmsize, NULL, it, flags, reqp,
- cb_blocking);
- if (rc < 0)
- RETURN(rc);
- LASSERT(rc == 0);
-
- /* okay, MDS has returned success. probably name has been
- * resolved in remote inode */
- rc = lmv_handle_remote_inode(exp, uctxt, lmm, lmmsize, it, flags,
- reqp, cb_blocking);
- if (rc < 0)
- RETURN(rc);
-
- body = lustre_msg_buf((*reqp)->rq_repmsg, 1, sizeof(*body));
- LASSERT(body != NULL);
- cfid = &body->fid1;
- obj2 = lmv_grab_obj(obd, cfid, 0);
-
- if (rc == 0 && !obj2 && (mea = is_body_of_splitted_dir(*reqp, 1))) {
- /* wow! this is splitted dir, we'd like to handle it */
- body = lustre_msg_buf((*reqp)->rq_repmsg, 1, sizeof(*body));
- LASSERT(body != NULL);
- rc = lmv_create_obj_from_attrs(exp, &body->fid1, mea);
- obj2 = lmv_grab_obj(obd, cfid, 0);
- }
-
- if (obj2) {
- /* this is splitted dir and we'd want to get attrs */
- CDEBUG(D_OTHER,
- "attrs from slaves for %lu/%lu/%lu, rc %d\n",
- (unsigned long) cfid->mds,
- (unsigned long) cfid->id,
- (unsigned long) cfid->generation, rc);
- rc = lmv_revalidate_slaves(exp, reqp, cfid,
- it, 1, cb_blocking);
- }
- RETURN(rc);
-}
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct ptlrpc_request *req = NULL;
+ struct mdt_body *body;
+ struct md_op_data *op_data;
+ int i;
+ int rc = 0;
+
+ ENTRY;
+
+ /**
+ * revalidate slaves has some problems, temporarily return,
+ * we may not need that
+ */
+ OBD_ALLOC_PTR(op_data);
+ if (op_data == NULL)
+ RETURN(-ENOMEM);
+
+ /**
+ * Loop over the stripe information, check validity and update them
+ * from MDS if needed.
+ */
+ for (i = 0; i < lsm->lsm_md_stripe_count; i++) {
+ struct lu_fid fid;
+ struct lookup_intent it = { .it_op = IT_GETATTR };
+ struct lustre_handle *lockh = NULL;
+ struct lmv_tgt_desc *tgt = NULL;
+ struct inode *inode;
+
+ fid = lsm->lsm_md_oinfo[i].lmo_fid;
+ inode = lsm->lsm_md_oinfo[i].lmo_root;
+
+ /*
+ * Prepare op_data for revalidating. Note that @fid2 shluld be
+ * defined otherwise it will go to server and take new lock
+ * which is not needed here.
+ */
+ memset(op_data, 0, sizeof(*op_data));
+ op_data->op_fid1 = fid;
+ op_data->op_fid2 = fid;
+
+ tgt = lmv_locate_mds(lmv, op_data, &fid);
+ if (IS_ERR(tgt))
+ GOTO(cleanup, rc = PTR_ERR(tgt));
+
+ CDEBUG(D_INODE, "Revalidate slave "DFID" -> mds #%u\n",
+ PFID(&fid), tgt->ltd_idx);
+
+ if (req != NULL) {
+ ptlrpc_req_finished(req);
+ req = NULL;
+ }
+
+ rc = md_intent_lock(tgt->ltd_exp, op_data, &it, &req,
+ cb_blocking, extra_lock_flags);
+ if (rc < 0)
+ GOTO(cleanup, rc);
+
+ lockh = (struct lustre_handle *)&it.d.lustre.it_lock_handle;
+ if (rc > 0 && req == NULL) {
+ /* slave inode is still valid */
+ CDEBUG(D_INODE, "slave "DFID" is still valid.\n",
+ PFID(&fid));
+ rc = 0;
+ } else {
+ /* refresh slave from server */
+ body = req_capsule_server_get(&req->rq_pill,
+ &RMF_MDT_BODY);
+ LASSERT(body != NULL);
+ if (unlikely(body->mbo_nlink < 2)) {
+ CERROR("%s: nlink %d < 2 corrupt stripe %d "DFID
+ ":" DFID"\n",
+ obd->obd_name, body->mbo_nlink, i,
+ PFID(&lsm->lsm_md_oinfo[i].lmo_fid),
+ PFID(&lsm->lsm_md_oinfo[0].lmo_fid));
+
+ if (it.d.lustre.it_lock_mode && lockh) {
+ ldlm_lock_decref(lockh,
+ it.d.lustre.it_lock_mode);
+ it.d.lustre.it_lock_mode = 0;
+ }
+
+ GOTO(cleanup, rc = -EIO);
+ }
+
+
+ i_size_write(inode, body->mbo_size);
+ inode->i_blocks = body->mbo_blocks;
+ set_nlink(inode, body->mbo_nlink);
+ LTIME_S(inode->i_atime) = body->mbo_atime;
+ LTIME_S(inode->i_ctime) = body->mbo_ctime;
+ LTIME_S(inode->i_mtime) = body->mbo_mtime;
+ }
+
+ md_set_lock_data(tgt->ltd_exp, &lockh->cookie, inode, NULL);
+ if (it.d.lustre.it_lock_mode != 0 && lockh != NULL) {
+ ldlm_lock_decref(lockh, it.d.lustre.it_lock_mode);
+ it.d.lustre.it_lock_mode = 0;
+ }
+ }