• Jeremy Fitzhardinge's avatar
    usermodehelper: split setup from execution · 0ab4dc92
    Jeremy Fitzhardinge authored
    Rather than having hundreds of variations of call_usermodehelper for
    various pieces of usermode state which could be set up, split the
    info allocation and initialization from the actual process execution.
    
    This means the general pattern becomes:
     info = call_usermodehelper_setup(path, argv, envp); /* basic state */
     call_usermodehelper_<SET EXTRA STATE>(info, stuff...);	/* extra state */
     call_usermodehelper_exec(info, wait);	/* run process and free info */
    
    This patch introduces wrappers for all the existing calling styles for
    call_usermodehelper_*, but folds their implementations into one.
    Signed-off-by: default avatarJeremy Fitzhardinge <jeremy@xensource.com>
    Cc: Andi Kleen <ak@suse.de>
    Cc: Rusty Russell <rusty@rustcorp.com.au>
    Cc: David Howells <dhowells@redhat.com>
    Cc: Bj?rn Steinbrink <B.Steinbrink@gmx.de>
    Cc: Randy Dunlap <randy.dunlap@oracle.com>
    0ab4dc92
kmod.c 11.8 KB