[PATCH] Make RLIMIT_NICE ranges consistent with getpriority(2)
authorMatt Mackall <mpm@selenic.com>
Thu, 18 Aug 2005 18:24:19 +0000 (11:24 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Thu, 18 Aug 2005 19:53:58 +0000 (12:53 -0700)
As suggested by Michael Kerrisk <mtk-manpages@gmx.net>, make RLIMIT_NICE
consistent with getpriority before it becomes available in released glibc.

Signed-off-by: Matt Mackall <mpm@selenic.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Chris Wright <chrisw@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
kernel/sched.c

index a646e4f36c4136d49d3ba1444cc22133e21b4d92..5f889d0cbfcc2e614aef87963ec0bea5ea6a5f21 100644 (file)
@@ -3378,8 +3378,8 @@ EXPORT_SYMBOL(set_user_nice);
  */
 int can_nice(const task_t *p, const int nice)
 {
-       /* convert nice value [19,-20] to rlimit style value [0,39] */
-       int nice_rlim = 19 - nice;
+       /* convert nice value [19,-20] to rlimit style value [1,40] */
+       int nice_rlim = 20 - nice;
        return (nice_rlim <= p->signal->rlim[RLIMIT_NICE].rlim_cur ||
                capable(CAP_SYS_NICE));
 }