fstab-generator: support fstab=/rd.fstab= kernel cmdline

[elogind.git] / src / core / main.c

diff --git a/src/core/main.c b/src/core/main.c
index 4c3ee7d5a2e240cd1ad42f1612a271f5dfa1146d..546582cff02af96391f36099e386fa87bd56b5fc 100644 (file)
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -90,6 +90,7 @@ static usec_t arg_runtime_watchdog = 0;
 static usec_t arg_shutdown_watchdog = 10 * USEC_PER_MINUTE;
 static struct rlimit *arg_default_rlimit[RLIMIT_NLIMITS] = {};
 static uint64_t arg_capability_bounding_set_drop = 0;
+static nsec_t arg_timer_slack_nsec = (nsec_t) -1;
 
 static FILE* serialization = NULL;
 
@@ -373,7 +374,8 @@ static int parse_proc_cmdline_word(const char *word) {
                         arg_sysv_console = r;
 #endif
 
-        } else if (startswith(word, "systemd.")) {
+        } else if (startswith(word, "systemd.") ||
+                   (in_initrd() && startswith(word, "rd.systemd."))) {
 
                 log_warning("Unknown kernel switch %s. Ignoring.", word);
 
@@ -396,14 +398,15 @@ static int parse_proc_cmdline_word(const char *word) {
                          "systemd.default_standard_output=null|tty|syslog|syslog+console|kmsg|kmsg+console|journal|journal+console\n"
                          "                                         Set default log output for services\n"
                          "systemd.default_standard_error=null|tty|syslog|syslog+console|kmsg|kmsg+console|journal|journal+console\n"
-                         "                                         Set default log error output for services\n");
+                         "                                         Set default log error output for services\n"
+                         "systemd.setenv=ASSIGNMENT                Set an environment variable for all spawned processes\n");
 
         } else if (streq(word, "quiet")) {
                 arg_show_status = false;
 #ifdef HAVE_SYSV_COMPAT
                 arg_sysv_console = false;
 #endif
-        } else {
+        } else if (!in_initrd()) {
                 unsigned i;
 
                 /* SysV compatibility */
@@ -681,6 +684,7 @@ static int parse_config_file(void) {
                 { "Manager", "RuntimeWatchdogSec",    config_parse_usec,         0, &arg_runtime_watchdog    },
                 { "Manager", "ShutdownWatchdogSec",   config_parse_usec,         0, &arg_shutdown_watchdog   },
                 { "Manager", "CapabilityBoundingSet", config_parse_bounding_set, 0, &arg_capability_bounding_set_drop },
+                { "Manager", "TimerSlackNSec",        config_parse_nsec,         0, &arg_timer_slack_nsec    },
                 { "Manager", "DefaultLimitCPU",       config_parse_limit,        0, &arg_default_rlimit[RLIMIT_CPU]},
                 { "Manager", "DefaultLimitFSIZE",     config_parse_limit,        0, &arg_default_rlimit[RLIMIT_FSIZE]},
                 { "Manager", "DefaultLimitDATA",      config_parse_limit,        0, &arg_default_rlimit[RLIMIT_DATA]},
@@ -1487,6 +1491,10 @@ int main(int argc, char *argv[]) {
         if (arg_running_as == MANAGER_SYSTEM && arg_runtime_watchdog > 0)
                 watchdog_set_timeout(&arg_runtime_watchdog);
 
+        if (arg_timer_slack_nsec != (nsec_t) -1)
+                if (prctl(PR_SET_TIMERSLACK, arg_timer_slack_nsec) < 0)
+                        log_error("Failed to adjust timer slack: %m");
+
         if (arg_capability_bounding_set_drop) {
                 r = capability_bounding_set_drop(arg_capability_bounding_set_drop, true);
                 if (r < 0) {