- // --------------------------------------------------------------------------
- // space metrics
-
- if(d->mount_point && (d->do_space || d->do_inodes) ) {
- // collect space metrics using statvfs
-
- if (statvfs(d->mount_point, &buff_statvfs) < 0)
- error("Failed statvfs() for '%s' (disk '%s')", d->mount_point, d->disk);
- else {
- space_avail = buff_statvfs.f_bavail * buff_statvfs.f_bsize;
- space_avail_root = (buff_statvfs.f_bfree - buff_statvfs.f_bavail) * buff_statvfs.f_bsize;
- space_used = (buff_statvfs.f_blocks - buff_statvfs.f_bfree) * buff_statvfs.f_bsize;
-
- inodes_avail = buff_statvfs.f_favail;
- inodes_avail_root = buff_statvfs.f_ffree - buff_statvfs.f_favail;
- inodes_used = buff_statvfs.f_files - buff_statvfs.f_ffree;
-
- // verify we collected the metrics for the right disk.
- // if not the mountpoint has changed.
-
- if(stat(d->mount_point, &buff_stat) == -1)
- error("Failed to stat() for '%s' (disk '%s')", d->mount_point, d->disk);
- else {
- if(major(buff_stat.st_dev) == major && minor(buff_stat.st_dev) == minor) {
-
- // --------------------------------------------------------------------------
-
- if(d->do_space == CONFIG_ONDEMAND_YES || (d->do_space == CONFIG_ONDEMAND_ONDEMAND && (space_avail || space_avail_root || space_used))) {
- st = rrdset_find_bytype("disk_space", disk);
- if(!st) {
- st = rrdset_create("disk_space", disk, NULL, family, "disk.space", "Disk Space Usage", "GB", 2023, update_every, RRDSET_TYPE_STACKED);
- st->isdetail = 1;
-
- rrddim_add(st, "avail", NULL, 1, 1024*1024*1024, RRDDIM_ABSOLUTE);
- rrddim_add(st, "used" , NULL, 1, 1024*1024*1024, RRDDIM_ABSOLUTE);
- rrddim_add(st, "reserved_for_root", "reserved for root", 1, 1024*1024*1024, RRDDIM_ABSOLUTE);
- }
- else rrdset_next_usec(st, dt);
-
- rrddim_set(st, "avail", space_avail);
- rrddim_set(st, "used", space_used);
- rrddim_set(st, "reserved_for_root", space_avail_root);
- rrdset_done(st);
- }
-
- // --------------------------------------------------------------------------
-
- if(d->do_inodes == CONFIG_ONDEMAND_YES || (d->do_inodes == CONFIG_ONDEMAND_ONDEMAND && (inodes_avail || inodes_avail_root || inodes_used))) {
- st = rrdset_find_bytype("disk_inodes", disk);
- if(!st) {
- st = rrdset_create("disk_inodes", disk, NULL, family, "disk.inodes", "Disk Inodes Usage", "Inodes", 2024, update_every, RRDSET_TYPE_STACKED);
- st->isdetail = 1;
-
- rrddim_add(st, "avail", NULL, 1, 1, RRDDIM_ABSOLUTE);
- rrddim_add(st, "used" , NULL, 1, 1, RRDDIM_ABSOLUTE);
- rrddim_add(st, "reserved_for_root", "reserved for root", 1, 1, RRDDIM_ABSOLUTE);
- }
- else rrdset_next_usec(st, dt);
-
- rrddim_set(st, "avail", inodes_avail);
- rrddim_set(st, "used", inodes_used);
- rrddim_set(st, "reserved_for_root", inodes_avail_root);
- rrdset_done(st);
- }
- }
- }
+ // cleanup removed disks
+
+ struct disk *d = disk_root, *last = NULL;
+ while(d) {
+ if(unlikely(!d->updated)) {
+ struct disk *t = d;
+
+ rrdset_obsolete_and_pointer_null(d->st_avgsz);
+ rrdset_obsolete_and_pointer_null(d->st_await);
+ rrdset_obsolete_and_pointer_null(d->st_backlog);
+ rrdset_obsolete_and_pointer_null(d->st_io);
+ rrdset_obsolete_and_pointer_null(d->st_iotime);
+ rrdset_obsolete_and_pointer_null(d->st_mops);
+ rrdset_obsolete_and_pointer_null(d->st_ops);
+ rrdset_obsolete_and_pointer_null(d->st_qops);
+ rrdset_obsolete_and_pointer_null(d->st_svctm);
+ rrdset_obsolete_and_pointer_null(d->st_util);
+
+ if(d == disk_root) {
+ disk_root = d = d->next;
+ last = NULL;
+ }
+ else if(last) {
+ last->next = d = d->next;