static inline void prepare_schedule_oid(uint64_t oid)
{
struct recovery_work *rw = recovering_work;
int i;
for (i = 0; i < rw->nr_prio_oids; i++)
if (rw->prio_oids[i] == oid)
return;
/*
* We need this check because oid might not be recovered.
* Very much unlikely though, but it might happen indeed.
*/
for (i = 0; i < rw->done; i++)
if (rw->oids[i] == oid) {
sd_dprintf("%"PRIx64" not recovered, don't schedule it",
oid);
return;
}
/* When auto recovery is enabled, the oid is currently being
* recovered */
if (!sys->disable_recovery && rw->oids[rw->done] == oid)
return;
rw->nr_prio_oids++;
rw->prio_oids = xrealloc(rw->prio_oids,
rw->nr_prio_oids * sizeof(uint64_t));
rw->prio_oids[rw->nr_prio_oids - 1] = oid;
resume_suspended_recovery();
sd_dprintf("%"PRIx64" nr_prio_oids %d", oid, rw->nr_prio_oids);
}
int start_recovery(struct vnode_info *cur_vinfo, struct vnode_info *old_vinfo)
{
struct recovery_work *rw;
if (node_is_gateway_only())
goto out;
rw = xzalloc(sizeof(struct recovery_work));
rw->state = RW_INIT;
rw->oids = xmalloc(list_buffer_size);
rw->epoch = sys->epoch;
rw->count = 0;
rw->cur_vinfo = grab_vnode_info(cur_vinfo);
rw->old_vinfo = grab_vnode_info(old_vinfo);
rw->work.fn = prepare_object_list;
rw->work.done = finish_object_list;
if (recovering_work != NULL) {
/* skip the previous epoch recovery */
if (next_rw)
free_recovery_work(next_rw);
sd_dprintf("recovery skipped");
next_rw = rw;
/*
* This is necesary to invoke run_next_rw when
* recovery work is suspended.
*/
resume_suspended_recovery();
} else {
recovering_work = rw;
queue_work(sys->recovery_wqueue, &rw->work);
}
out:
wakeup_requests_on_epoch();
return 0;
}