CALL_USERMODEHELPER_(9) Module Support CALL_USERMODEHELPER_(9)NAMEcall_usermodehelper_setfns - set a cleanup/init function
SYNOPSIS
void call_usermodehelper_setfns(struct subprocess_info * info,
int (*init) (struct subprocess_info *info),
void (*cleanup) (struct subprocess_info *info),
void * data);
ARGUMENTS
info
a subprocess_info returned by call_usermodehelper_setup
init
an init function
cleanup
a cleanup function
data
arbitrary context sensitive data
DESCRIPTION
The init function is used to customize the helper process prior to
exec. A non-zero return code causes the process to error out, exit, and
return the failure to the calling process
The cleanup function is just before ethe subprocess_info is about to be
freed. This can be used for freeing the argv and envp. The Function
must be runnable in either a process context or the context in which
call_usermodehelper_exec is called.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 CALL_USERMODEHELPER_(9)