Events are reported via POLLPRI and POLLERR (priority and
exception flags), not POLLIN (which causes a busy-loop).
Signed-off-by: Wolfgang Bumiller <w.bumil...@proxmox.com>
---
src/PVE/LXC/CGroup.pm | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)
diff --git a/src/PVE/LXC/CGroup.pm b/src/PVE/LXC/CGroup.pm
index 5db1d48..d6b27ea 100644
--- a/src/PVE/LXC/CGroup.pm
+++ b/src/PVE/LXC/CGroup.pm
@@ -546,18 +546,16 @@ my sub v2_freeze_thaw {
PVE::ProcFSTools::write_proc_entry("$path/cgroup.freeze", $desired_state);
while (1) {
- my @handles = $select->can_read();
- next if !@handles;
- open(my $dup, '<&', $fh)
- or die "failed to reopen cgroup.events file: $!\n";
- seek($dup, 0, 0)
- or die "failed to rewind cgroup.events file: $!\n";
my $data = do {
local $/ = undef;
- <$dup>
+ <$fh>
};
$data = parse_flat_keyed_file($data);
last if $data->{frozen} == $desired_state;
+ my @handles = $select->has_exception();
+ next if !@handles;
+ seek($fh, 0, 0)
+ or die "failed to rewind cgroup.events file: $!\n";
}
}
--
2.20.1
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