From 162255186046fa7a5e82859b7dba5a7909ce6fc4 Mon Sep 17 00:00:00 2001 From: Andy Wingo Date: Sun, 6 Mar 2016 16:02:31 +0100 Subject: Classify processes from sessions into cgroups Create a private cgroup tree associated with no controllers, and use it to map PIDs to sessions. Since we use our own path structure, remove internal cgroup-related helpers that interpret the cgroup path structure to pull out users, slices, and scopes. --- src/cgroups-agent/cgroups-agent.c | 18 +++++++----------- 1 file changed, 7 insertions(+), 11 deletions(-) (limited to 'src/cgroups-agent') diff --git a/src/cgroups-agent/cgroups-agent.c b/src/cgroups-agent/cgroups-agent.c index 529e84303..3be4cff80 100644 --- a/src/cgroups-agent/cgroups-agent.c +++ b/src/cgroups-agent/cgroups-agent.c @@ -38,17 +38,13 @@ int main(int argc, char *argv[]) { log_parse_environment(); log_open(); - /* We send this event to the private D-Bus socket and then the - * system instance will forward this to the system bus. We do - * this to avoid an activation loop when we start dbus when we - * are called when the dbus service is shut down. */ - - r = bus_open_system_systemd(&bus); + /* Unlike in systemd where this has to use a private socket, + since logind doesn't associate control groups with services + and doesn't manage the dbus service, we can just use the + system bus. */ + r = sd_bus_open_system(&bus); if (r < 0) { - /* If we couldn't connect we assume this was triggered - * while systemd got restarted/transitioned from - * initrd to the system, so let's ignore this */ - log_debug_errno(r, "Failed to get D-Bus connection: %m"); + log_debug_errno(r, "Failed to open system bus: %m"); return EXIT_FAILURE; } @@ -58,7 +54,7 @@ int main(int argc, char *argv[]) { "Released", "s", argv[1]); if (r < 0) { - log_debug_errno(r, "Failed to send signal message on private connection: %m"); + log_debug_errno(r, "Failed to send signal message: %m"); return EXIT_FAILURE; } -- cgit v1.2.3