From: Jan Engelhardt <jengelh@linux01.gwdg.de>

Fix kevent's childs priority greediness.  Such tasks were always scheduled
at nice level -5 and, at that time, udev stole us the CPU time with -5.

Already posted at http://lkml.org/lkml/2005/1/10/85

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Cc: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 kernel/kmod.c |    1 +
 1 file changed, 1 insertion(+)

diff -puN kernel/kmod.c~fix-kevents-childs-priority-greediness kernel/kmod.c
--- a/kernel/kmod.c~fix-kevents-childs-priority-greediness
+++ a/kernel/kmod.c
@@ -164,6 +164,7 @@ static int ____call_usermodehelper(void 
 
 	/* We can run anywhere, unlike our parent keventd(). */
 	set_cpus_allowed(current, CPU_MASK_ALL);
+	set_user_nice(current, 0);
 
 	retval = -EPERM;
 	if (current->fs->root)
_