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mdev: add -v to increase log verbosity

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If logging to stderr and/or syslog the -v option can be given one or
more times to increase the log verbosity. If mdev is used as hotplug
helper the log level is fixed set to 2 if mdev.log is found an appended
because there is no possiblity to pass arguments to the hotplug helper.

Signed-off-by: Jan Klötzke <jan@kloetzke.net>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Jan Klötzke 2019-12-16 22:56:54 +01:00 committed by Denys Vlasenko
parent e9003caf6d
commit 768153bf8c
1 changed files with 8 additions and 3 deletions
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11
util-linux/mdev.c
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@ -80,7 +80,7 @@
//kbuild:lib-$(CONFIG_MDEV) += mdev.o
//usage:#define mdev_trivial_usage
//usage: "[-S] " IF_FEATURE_MDEV_DAEMON("[") "[-s]" IF_FEATURE_MDEV_DAEMON(" | [-df]]")
//usage: "[-Sv] " IF_FEATURE_MDEV_DAEMON("[") "[-s]" IF_FEATURE_MDEV_DAEMON(" | [-df]]")
//usage:#define mdev_full_usage "\n\n"
//usage: "mdev -s is to be run during boot to scan /sys and populate /dev.\n"
//usage: IF_FEATURE_MDEV_DAEMON(
@ -90,6 +90,7 @@
//usage: "\n"
//usage: "optional arguments:\n"
//usage: " -S: Log to syslog too\n"
//usage: " -v: Increase log verbosity\n"
//usage: "\n"
//usage: "Bare mdev is a kernel hotplug helper. To activate it:\n"
//usage: " echo /sbin/mdev >/proc/sys/kernel/hotplug\n"
@ -297,7 +298,7 @@ struct rule {
struct globals {
int root_major, root_minor;
smallint verbose;
int verbose;
char *subsystem;
char *subsys_env; /* for putenv("SUBSYSTEM=subsystem") */
#if ENABLE_FEATURE_MDEV_CONF
@ -1259,7 +1260,11 @@ int mdev_main(int argc UNUSED_PARAM, char **argv)
xchdir("/dev");
opt = getopt32(argv, "sS" IF_FEATURE_MDEV_DAEMON("df"));
opt = getopt32(argv, "^"
"sS" IF_FEATURE_MDEV_DAEMON("df") "v"
"\0"
"vv",
&G.verbose);
#if ENABLE_FEATURE_MDEV_CONF
G.filename = "/etc/mdev.conf";