[PROBLEM] BTRFS snapshots. Exclude paths

[xbfgf]

Media was a subvolume. After restoring "root" snapshot, "/media" was still there, but empty and I was unable to do anything inside it (even a touch as root came back with permission denied).
I therefore ended up deleting the subvolume (which did work) and recreating it.

I guess that kind of invalidates the results now, but here goes:
(Note I'd taken a couple of the snapshots myself manually)

root@xbian ~ # btrfs subvolume list '/'
ID 257 gen 26534 top level 5 path root
ID 258 gen 25407 top level 257 path root/@btrfs-auto-snap_apt-run-2015-02-21-1837_rollback
ID 259 gen 26531 top level 5 path modules
ID 260 gen 26529 top level 259 path modules/@
ID 261 gen 26528 top level 5 path home
ID 262 gen 26560 top level 261 path home/@
ID 266 gen 26525 top level 5 path data
ID 267 gen 26523 top level 266 path data/@
ID 315 gen 25289 top level 258 path root/@btrfs-auto-snap_apt-run-2015-02-21-1837_rollback/media
ID 1050 gen 20777 top level 257 path root/@btrfs-auto-snap_apt-run-2015-02-14-1338
ID 1068 gen 22774 top level 266 path data/@btrfs-auto-snap_weekly-2015-02-16-0919
ID 1070 gen 22777 top level 261 path home/@btrfs-auto-snap_weekly-2015-02-16-0919
ID 1072 gen 22780 top level 259 path modules/@btrfs-auto-snap_weekly-2015-02-16-0919
ID 1074 gen 22783 top level 257 path root/@btrfs-auto-snap_weekly-2015-02-16-0919
ID 1076 gen 22916 top level 257 path root/@btrfs-auto-snap_apt-run-2015-02-16-1556
ID 1118 gen 26556 top level 257 path root/@
ID 1129 gen 25402 top level 258 path root/@btrfs-auto-snap_apt-run-2015-02-21-1837_rollback/root/before_rollback_22_02_2015
ID 1130 gen 25429 top level 1118 path var/log/after_rollback_22_02_2015
ID 1131 gen 25453 top level 266 path data/@btrfs-auto-snap_daily-2015-02-22-1803
ID 1133 gen 25456 top level 261 path home/@btrfs-auto-snap_daily-2015-02-22-1803
ID 1135 gen 25459 top level 259 path modules/@btrfs-auto-snap_daily-2015-02-22-1803
ID 1137 gen 25462 top level 257 path root/@btrfs-auto-snap_daily-2015-02-22-1803
ID 1139 gen 25814 top level 266 path data/@btrfs-auto-snap_daily-2015-02-23-0950
ID 1141 gen 25817 top level 261 path home/@btrfs-auto-snap_daily-2015-02-23-0950
ID 1143 gen 25820 top level 259 path modules/@btrfs-auto-snap_daily-2015-02-23-0950
ID 1145 gen 25823 top level 257 path root/@btrfs-auto-snap_daily-2015-02-23-0950
ID 1147 gen 25827 top level 266 path data/@btrfs-auto-snap_weekly-2015-02-23-0950
ID 1149 gen 25830 top level 261 path home/@btrfs-auto-snap_weekly-2015-02-23-0950
ID 1151 gen 25833 top level 259 path modules/@btrfs-auto-snap_weekly-2015-02-23-0950
ID 1153 gen 25836 top level 257 path root/@btrfs-auto-snap_weekly-2015-02-23-0950
ID 1155 gen 26411 top level 1118 path media
ID 1156 gen 26524 top level 266 path data/@btrfs-auto-snap_daily-2015-02-25-0902
ID 1157 gen 26524 top level 266 path data/@last_good_known
ID 1158 gen 26527 top level 261 path home/@btrfs-auto-snap_daily-2015-02-25-0902
ID 1159 gen 26527 top level 261 path home/@last_good_known
ID 1160 gen 26530 top level 259 path modules/@btrfs-auto-snap_daily-2015-02-25-0902
ID 1161 gen 26530 top level 259 path modules/@last_good_known
ID 1162 gen 26533 top level 257 path root/@btrfs-auto-snap_daily-2015-02-25-0902
ID 1163 gen 26533 top level 257 path root/@last_good_known