* Ask client for new range, assign that range to ->seq_space and write
* seq state to backing store should be atomic.
*/
- down(&seq->lss_sem);
+ cfs_down(&seq->lss_sem);
if (cli == NULL) {
CDEBUG(D_INFO, "%s: Detached sequence client %s\n",
cli->lcs_space.lsr_mdt = seq->lss_site->ms_node_id;
EXIT;
out_up:
- up(&seq->lss_sem);
+ cfs_up(&seq->lss_sem);
return rc;
}
EXPORT_SYMBOL(seq_server_set_cli);
int rc;
ENTRY;
- down(&seq->lss_sem);
+ cfs_down(&seq->lss_sem);
rc = __seq_server_alloc_super(seq, in, out, env);
- up(&seq->lss_sem);
+ cfs_up(&seq->lss_sem);
RETURN(rc);
}
CDEBUG(D_INFO, "%s: Input seq range: "
DRANGE"\n", seq->lss_name, PRANGE(in));
- if (range_is_exhausted(space)) {
+ if (in->lsr_end <= space->lsr_start) {
/*
- * Server cannot send empty range to client, this is why
- * we check here that range from client is "newer" than
- * exhausted super.
+ * Client is replaying a fairly old range, server
+ * don't need to do any allocation.
*/
- LASSERT(in->lsr_end > space->lsr_start);
-
+ } else if (range_is_exhausted(space)) {
/*
* Start is set to end of last allocated, because it
* *is* already allocated so we take that into account
* Update super start by end from client's range. Super
* end should not be changed if range was not exhausted.
*/
- if (in->lsr_end > space->lsr_start)
- space->lsr_start = in->lsr_end;
+ space->lsr_start = in->lsr_end;
+ }
+
+ /* sending replay_super to update fld as only super sequence
+ * server can update fld.
+ * we are sending meta sequence to fld rather than super
+ * sequence, but fld server can handle range merging. */
+
+ in->lsr_mdt = space->lsr_mdt;
+ rc = seq_client_replay_super(seq->lss_cli, in, env);
+
+ if (rc) {
+ CERROR("%s: Can't replay super-sequence, "
+ "rc %d\n", seq->lss_name, rc);
+ RETURN(rc);
}
*out = *in;
int rc;
ENTRY;
- down(&seq->lss_sem);
+ cfs_down(&seq->lss_sem);
rc = __seq_server_alloc_meta(seq, in, out, env);
- up(&seq->lss_sem);
+ cfs_up(&seq->lss_sem);
RETURN(rc);
}
if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) {
in = tmp;
- LASSERT(!range_is_zero(in) && range_is_sane(in));
+
+ if (range_is_zero(in) || !range_is_sane(in)) {
+ CERROR("Replayed seq range is invalid: "
+ DRANGE"\n", PRANGE(in));
+ RETURN(err_serious(-EINVAL));
+ }
}
/* seq client passed mdt id, we need to pass that using out
* range parameter */
seq->lss_type = type;
seq->lss_site = ms;
range_init(&seq->lss_space);
- sema_init(&seq->lss_sem, 1);
+ cfs_sema_init(&seq->lss_sem, 1);
seq->lss_width = is_srv ?
LUSTRE_SEQ_META_WIDTH : LUSTRE_SEQ_SUPER_WIDTH;