04680bb10f
Request inclusion of package with hardware project before submitting to Factory OBS-URL: https://build.opensuse.org/request/show/178908 OBS-URL: https://build.opensuse.org/package/show/hardware/numad?expand=0&rev=1
121 lines
4.5 KiB
Diff
121 lines
4.5 KiB
Diff
From b1d3aef655509d7debc651ff54226e4b067db3f4 Mon Sep 17 00:00:00 2001
|
|
From: Mel Gorman <mgorman@suse.de>
|
|
Date: Wed, 12 Jun 2013 15:53:26 +0100
|
|
Subject: [PATCH] Give an option of running in foreground mode
|
|
|
|
systemd forking service type smells of something unfortunate apparently
|
|
and a desire was expressed to have it run as a simple service with
|
|
a foreground mode option. This patch implements a -F flag and uses it
|
|
with systemd.
|
|
|
|
Signed-off-by: Mel Gorman <mgorman@suse.de>
|
|
---
|
|
numad.8 | 5 ++++-
|
|
numad.c | 30 ++++++++++++++++++++----------
|
|
numad.service | 5 ++---
|
|
3 files changed, 26 insertions(+), 14 deletions(-)
|
|
|
|
diff --git a/numad.8 b/numad.8
|
|
index 2c46f55..73a0bc9 100644
|
|
--- a/numad.8
|
|
+++ b/numad.8
|
|
@@ -5,7 +5,7 @@ numad \- A user\-level daemon that provides placement advice and process
|
|
management for efficient use of CPUs and memory on systems with NUMA topology.
|
|
.SH "SYNTAX"
|
|
.LP
|
|
-numad [\fI\-dhvV\fP]
|
|
+numad [\fI\-dFhvV\fP]
|
|
.br
|
|
.LP
|
|
numad [\fI\-D non-standard-cgroup-mount-point\fP]
|
|
@@ -61,6 +61,9 @@ Debug output in log, sets the log level to LOG_DEBUG. Same effect as \fI\-l 7\f
|
|
\fB\-D\fR <\fInon-standard-cgroup-mount-point\fP>
|
|
This option can be used to communicate a non-standard cgroup mount point to
|
|
numad. This is not normally necessary.
|
|
+.TP
|
|
+\fB\-F\fR
|
|
+Run in foreground mode, do not daemonize\fP.
|
|
.TP
|
|
\fB\-h\fR
|
|
Display usage help information and then exit.
|
|
diff --git a/numad.c b/numad.c
|
|
index d08b622..f6581c0 100644
|
|
--- a/numad.c
|
|
+++ b/numad.c
|
|
@@ -680,6 +680,7 @@ void print_usage_and_exit(char *prog_name) {
|
|
fprintf(stderr, "Usage: %s <options> ...\n", prog_name);
|
|
fprintf(stderr, "-d for debug logging (same effect as '-l 7')\n");
|
|
fprintf(stderr, "-D <CGROUP_MOUNT_POINT> to specify cgroup mount point\n");
|
|
+ fprintf(stderr, "-F to run in the foreground\n");
|
|
fprintf(stderr, "-h to print this usage info\n");
|
|
fprintf(stderr, "-i [<MIN>:]<MAX> to specify interval seconds\n");
|
|
fprintf(stderr, "-K 1 to keep interleaved memory spread across nodes\n");
|
|
@@ -2145,8 +2146,9 @@ int main(int argc, char *argv[]) {
|
|
int v_flag = 0;
|
|
int w_flag = 0;
|
|
int x_flag = 0;
|
|
+ int F_flag = 0;
|
|
long list_pid = 0;
|
|
- while ((opt = getopt(argc, argv, "dD:hi:K:l:p:r:S:u:vVw:x:")) != -1) {
|
|
+ while ((opt = getopt(argc, argv, "dFD:hi:K:l:p:r:S:u:vVw:x:")) != -1) {
|
|
switch (opt) {
|
|
case 'd':
|
|
d_flag = 1;
|
|
@@ -2155,6 +2157,9 @@ int main(int argc, char *argv[]) {
|
|
case 'D':
|
|
cpuset_dir_list[0] = strdup(optarg);
|
|
break;
|
|
+ case 'F':
|
|
+ F_flag = 1;
|
|
+ break;
|
|
case 'h':
|
|
print_usage_and_exit(argv[0]);
|
|
break;
|
|
@@ -2278,15 +2283,20 @@ int main(int argc, char *argv[]) {
|
|
} else if (max_interval > 0) {
|
|
// Start the numad daemon...
|
|
check_prereqs(argv[0]);
|
|
- // Daemonize self...
|
|
- daemon_pid = fork();
|
|
- if (daemon_pid < 0) { numad_log(LOG_CRIT, "fork() failed\n"); exit(EXIT_FAILURE); }
|
|
- // Parent process now exits
|
|
- if (daemon_pid > 0) { exit(EXIT_SUCCESS); }
|
|
- // Child process continues...
|
|
- umask(S_IWGRP | S_IWOTH); // Reset the file mode
|
|
- int sid = setsid(); // Start a new session
|
|
- if (sid < 0) { numad_log(LOG_CRIT, "setsid() failed\n"); exit(EXIT_FAILURE); }
|
|
+
|
|
+ // Daemonize self if requested
|
|
+ if (F_flag == 0) {
|
|
+ daemon_pid = fork();
|
|
+ if (daemon_pid < 0) { numad_log(LOG_CRIT, "fork() failed\n"); exit(EXIT_FAILURE); }
|
|
+ // Parent process now exits
|
|
+ if (daemon_pid > 0) { exit(EXIT_SUCCESS); }
|
|
+
|
|
+ // Child process continues...
|
|
+ umask(S_IWGRP | S_IWOTH); // Reset the file mode
|
|
+ int sid = setsid(); // Start a new session
|
|
+ if (sid < 0) { numad_log(LOG_CRIT, "setsid() failed\n"); exit(EXIT_FAILURE); }
|
|
+ }
|
|
+
|
|
if ((chdir("/")) < 0) { numad_log(LOG_CRIT, "chdir() failed"); exit(EXIT_FAILURE); }
|
|
daemon_pid = register_numad_pid();
|
|
if (daemon_pid != getpid()) {
|
|
diff --git a/numad.service b/numad.service
|
|
index d0c8c5b..0223ca9 100644
|
|
--- a/numad.service
|
|
+++ b/numad.service
|
|
@@ -2,10 +2,9 @@
|
|
Description=numad - The NUMA daemon that manages application locality.
|
|
|
|
[Service]
|
|
-Type=forking
|
|
-PIDFile=/var/run/numad.pid
|
|
+Type=simple
|
|
EnvironmentFile=/etc/numad.conf
|
|
-ExecStart=/usr/sbin/numad -i $INTERVAL
|
|
+ExecStart=/usr/sbin/numad -i $INTERVAL -F
|
|
ExecStop=/usr/sbin/numad -i 0
|
|
|
|
[Install]
|