blocking_notifier_call_chain — Call functions in a blocking notifier chain
int blocking_notifier_call_chain ( | struct blocking_notifier_head * | nh, |
unsigned long | val, | |
void * | v) ; |
nh
Pointer to head of the blocking notifier chain
val
Value passed unmodified to notifier function
v
Pointer passed unmodified to notifier function
Calls each function in a notifier chain in turn. The functions run in a process context, so they are allowed to block.
If the return value of the notifier can be and'ed
with NOTIFY_STOP_MASK
then blocking_notifier_call_chain
will return immediately, with the return value of
the notifier function which halted execution.
Otherwise the return value is the return value
of the last notifier function called.