From 0d37e6edc09c99e683dd91ca0e83bbc0df8477b3 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sun, 16 Jul 2017 16:56:10 +0200 Subject: lib: add uevent_next_seqnum() Signed-off-by: Felix Fietkau --- include/linux/kobject.h | 5 +++++ lib/kobject_uevent.c | 37 +++++++++++++++++++++++++++++++++++++ 2 files changed, 42 insertions(+) --- a/lib/kobject_uevent.c +++ b/lib/kobject_uevent.c @@ -52,6 +52,18 @@ static const char *kobject_actions[] = { [KOBJ_OFFLINE] = "offline", }; +u64 uevent_next_seqnum(void) +{ + u64 seq; + + mutex_lock(&uevent_sock_mutex); + seq = ++uevent_seqnum; + mutex_unlock(&uevent_sock_mutex); + + return seq; +} +EXPORT_SYMBOL_GPL(uevent_next_seqnum); + /** * kobject_action_type - translate action string to numeric type *