INDEX

NAME, SYNOPSIS, ARGUMENTS, DESCRIPTION, COPYRIGHT

"__ATOMIC_NOTIFIER_CA" "9" "July 2007" "Kernel Hackers Manual 2.6.22" "Driver Basics"

NAME

__atomic_notifier_call_chain - Call functions in an atomic notifier chain

SYNOPSIS

"int __kprobes __atomic_notifier_call_chain(struct atomic_notifier_head * " "nh" ", unsigned long " "val" ", void * " "v" ", int " "nr_to_call" ", int * " "nr_calls" ");"


ARGUMENTS

nh

Pointer to head of the atomic notifier chain

val

Value passed unmodified to notifier function

v

Pointer passed unmodified to notifier function

nr_to_call

See the comment for notifier_call_chain. nr_calls See the comment for notifier_call_chain.

DESCRIPTION

Calls each function in a notifier chain in turn. The functions run in an atomic context, so they must not block. This routine uses RCU to synchronize with changes to the chain.

If the return value of the notifier can be and'ed with NOTIFY_STOP_MASKfR
then atomic_notifier_call_chainfR
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.

COPYRIGHT

Possibly related

raw nroff source of __atomic_notifier_call_chain(9)