Lines Matching refs:seq
56 static int seq_client_rpc(struct lu_client_seq *seq,
60 struct obd_export *exp = seq->lcs_exp;
82 in->lsr_index = seq->lcs_space.lsr_index;
83 if (seq->lcs_type == LUSTRE_SEQ_METADATA)
97 if (seq->lcs_type == LUSTRE_SEQ_DATA)
101 if (seq->lcs_type == LUSTRE_SEQ_METADATA)
110 if (seq->lcs_type == LUSTRE_SEQ_METADATA)
113 if (seq->lcs_type == LUSTRE_SEQ_METADATA)
123 DRANGE"\n", seq->lcs_name, PRANGE(output));
130 DRANGE"]\n", seq->lcs_name, PRANGE(output));
136 seq->lcs_name, opcname, PRANGE(output));
144 int seq_client_alloc_super(struct lu_client_seq *seq,
149 mutex_lock(&seq->lcs_mutex);
151 if (seq->lcs_srv) {
154 /* Check whether the connection to seq controller has been
156 if (seq->lcs_exp == NULL) {
157 mutex_unlock(&seq->lcs_mutex);
161 rc = seq_client_rpc(seq, &seq->lcs_space,
164 mutex_unlock(&seq->lcs_mutex);
170 struct lu_client_seq *seq)
174 if (seq->lcs_srv) {
182 rc = seq_client_rpc(seq, &seq->lcs_space,
192 struct lu_client_seq *seq, u64 *seqnr)
196 LASSERT(range_is_sane(&seq->lcs_space));
198 if (range_is_exhausted(&seq->lcs_space)) {
199 rc = seq_client_alloc_meta(env, seq);
202 seq->lcs_name, rc);
206 seq->lcs_name, PRANGE(&seq->lcs_space));
212 LASSERT(!range_is_exhausted(&seq->lcs_space));
213 *seqnr = seq->lcs_space.lsr_start;
214 seq->lcs_space.lsr_start += 1;
216 CDEBUG(D_INFO, "%s: Allocated sequence [%#llx]\n", seq->lcs_name,
222 static int seq_fid_alloc_prep(struct lu_client_seq *seq,
225 if (seq->lcs_update) {
226 add_wait_queue(&seq->lcs_waitq, link);
228 mutex_unlock(&seq->lcs_mutex);
232 mutex_lock(&seq->lcs_mutex);
233 remove_wait_queue(&seq->lcs_waitq, link);
237 ++seq->lcs_update;
238 mutex_unlock(&seq->lcs_mutex);
242 static void seq_fid_alloc_fini(struct lu_client_seq *seq)
244 LASSERT(seq->lcs_update == 1);
245 mutex_lock(&seq->lcs_mutex);
246 --seq->lcs_update;
247 wake_up(&seq->lcs_waitq);
251 * Allocate the whole seq to the caller.
254 struct lu_client_seq *seq, u64 *seqnr)
260 mutex_lock(&seq->lcs_mutex);
264 rc = seq_fid_alloc_prep(seq, &link);
269 rc = seq_client_alloc_seq(env, seq, seqnr);
272 seq->lcs_name, rc);
273 seq_fid_alloc_fini(seq);
274 mutex_unlock(&seq->lcs_mutex);
279 seq->lcs_name, *seqnr);
281 /* Since the caller require the whole seq,
282 * so marked this seq to be used */
283 if (seq->lcs_type == LUSTRE_SEQ_METADATA)
284 seq->lcs_fid.f_oid = LUSTRE_METADATA_SEQ_MAX_WIDTH;
286 seq->lcs_fid.f_oid = LUSTRE_DATA_SEQ_MAX_WIDTH;
288 seq->lcs_fid.f_seq = *seqnr;
289 seq->lcs_fid.f_ver = 0;
294 seq_fid_alloc_fini(seq);
295 mutex_unlock(&seq->lcs_mutex);
301 /* Allocate new fid on passed client @seq and save it to @fid. */
303 struct lu_client_seq *seq, struct lu_fid *fid)
308 LASSERT(seq != NULL);
312 mutex_lock(&seq->lcs_mutex);
315 seq->lcs_fid.f_oid = seq->lcs_width;
320 if (!fid_is_zero(&seq->lcs_fid) &&
321 fid_oid(&seq->lcs_fid) < seq->lcs_width) {
323 seq->lcs_fid.f_oid += 1;
328 rc = seq_fid_alloc_prep(seq, &link);
332 rc = seq_client_alloc_seq(env, seq, &seqnr);
335 seq->lcs_name, rc);
336 seq_fid_alloc_fini(seq);
337 mutex_unlock(&seq->lcs_mutex);
342 seq->lcs_name, seqnr);
344 seq->lcs_fid.f_oid = LUSTRE_FID_INIT_OID;
345 seq->lcs_fid.f_seq = seqnr;
346 seq->lcs_fid.f_ver = 0;
354 seq_fid_alloc_fini(seq);
358 *fid = seq->lcs_fid;
359 mutex_unlock(&seq->lcs_mutex);
361 CDEBUG(D_INFO, "%s: Allocated FID "DFID"\n", seq->lcs_name, PFID(fid));
370 void seq_client_flush(struct lu_client_seq *seq)
374 LASSERT(seq != NULL);
376 mutex_lock(&seq->lcs_mutex);
378 while (seq->lcs_update) {
379 add_wait_queue(&seq->lcs_waitq, &link);
381 mutex_unlock(&seq->lcs_mutex);
385 mutex_lock(&seq->lcs_mutex);
386 remove_wait_queue(&seq->lcs_waitq, &link);
390 fid_zero(&seq->lcs_fid);
392 * this id shld not be used for seq range allocation.
396 seq->lcs_space.lsr_index = -1;
398 range_init(&seq->lcs_space);
399 mutex_unlock(&seq->lcs_mutex);
403 static void seq_client_proc_fini(struct lu_client_seq *seq)
406 if (seq->lcs_proc_dir) {
407 if (!IS_ERR(seq->lcs_proc_dir))
408 lprocfs_remove(&seq->lcs_proc_dir);
409 seq->lcs_proc_dir = NULL;
414 static int seq_client_proc_init(struct lu_client_seq *seq)
419 seq->lcs_proc_dir = lprocfs_register(seq->lcs_name,
423 if (IS_ERR(seq->lcs_proc_dir)) {
424 CERROR("%s: LProcFS failed in seq-init\n",
425 seq->lcs_name);
426 rc = PTR_ERR(seq->lcs_proc_dir);
430 rc = lprocfs_add_vars(seq->lcs_proc_dir,
431 seq_client_proc_list, seq);
434 seq->lcs_name, rc);
441 seq_client_proc_fini(seq);
449 int seq_client_init(struct lu_client_seq *seq,
457 LASSERT(seq != NULL);
460 seq->lcs_srv = srv;
461 seq->lcs_type = type;
463 mutex_init(&seq->lcs_mutex);
465 seq->lcs_width = LUSTRE_METADATA_SEQ_MAX_WIDTH;
467 seq->lcs_width = LUSTRE_DATA_SEQ_MAX_WIDTH;
469 init_waitqueue_head(&seq->lcs_waitq);
471 seq_client_flush(seq);
474 seq->lcs_exp = class_export_get(exp);
476 LASSERT(seq->lcs_srv != NULL);
478 snprintf(seq->lcs_name, sizeof(seq->lcs_name),
481 rc = seq_client_proc_init(seq);
483 seq_client_fini(seq);
488 void seq_client_fini(struct lu_client_seq *seq)
490 seq_client_proc_fini(seq);
492 if (seq->lcs_exp != NULL) {
493 class_export_put(seq->lcs_exp);
494 seq->lcs_exp = NULL;
497 seq->lcs_srv = NULL;