On 2015-11-27 23:51, Chris Murphy wrote:
> But from github I'm not finding any indication that systemd enables
> quota. This issue suggests that quota disabled is tolerated.
> https://github.com/systemd/systemd/issues/1809
Looking at the systemd source, it seems that it could enable quota when playing
with the "machine":
See src/shared/machine-pool.c:
int setup_machine_directory(uint64_t size, sd_bus_error *error) {
_cleanup_release_lock_file_ LockFile lock_file = LOCK_FILE_INIT;
struct loop_info64 info = {
.lo_flags = LO_FLAGS_AUTOCLEAR,
[...]
r = check_btrfs();
if (r < 0)
return sd_bus_error_set_errnof(error, r, "Failed to determine
whether /var/lib/machines is located on btrfs: %m");
if (r > 0) {
(void) btrfs_subvol_make_label("/var/lib/machines");
r = btrfs_quota_enable("/var/lib/machines", true);
[...]
But I was unable to understand if:
- enabling quota is a "per filesystem" attribute or per "subvolume attribute"
- when systemd invokes setup_machine_directory()
Does someone have more information ?
BR
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