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Commit 024f4747 authored by Matt Mackall's avatar Matt Mackall Committed by Linus Torvalds
Browse files

[PATCH] Make RLIMIT_NICE ranges consistent with getpriority(2) 



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: default avatarMatt Mackall <mpm@selenic.com>
Acked-by: default avatarIngo Molnar <mingo@elte.hu>
Acked-by: default avatarChris Wright <chrisw@osdl.org>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 6cbe9de7

kernel/sched.c

+2 −2
Original line number Diff line number Diff line
@@ -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));

}