Commit-ID: 3ee237dddcd885d4e525791299d62de33b2ca117 Gitweb: http://git.kernel.org/tip/3ee237dddcd885d4e525791299d62de33b2ca117 Author: Dongsheng Yang <yangds.f...@cn.fujitsu.com> AuthorDate: Tue, 11 Feb 2014 15:34:46 +0800 Committer: Ingo Molnar <mi...@kernel.org> CommitDate: Sat, 22 Feb 2014 18:14:13 +0100
sched/prio: Add 3 macros of MAX_NICE, MIN_NICE and NICE_WIDTH in prio.h Currently there is lots of hard coding to 19 and -20, to represent maximum and minimum of nice values. This patch add three macros in prio.h for maximum, minimum and width of nice value, and uses it to remove hardcoded values in prio.h. Signed-off-by: Dongsheng Yang <yangds.f...@cn.fujitsu.com> Signed-off-by: Peter Zijlstra <pet...@infradead.org> Link: http://lkml.kernel.org/r/3994e89327b2b15f992277cdf9f409c516f87d1b.1392103744.git.yangds.f...@cn.fujitsu.com Signed-off-by: Thomas Gleixner <t...@linutronix.de> [ Collapsed two small patches. ] Signed-off-by: Ingo Molnar <mi...@kernel.org> --- include/linux/sched/prio.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/include/linux/sched/prio.h b/include/linux/sched/prio.h index 1ceaaa1..ac32258 100644 --- a/include/linux/sched/prio.h +++ b/include/linux/sched/prio.h @@ -1,6 +1,10 @@ #ifndef _SCHED_PRIO_H #define _SCHED_PRIO_H +#define MAX_NICE 19 +#define MIN_NICE -20 +#define NICE_WIDTH (MAX_NICE - MIN_NICE + 1) + /* * Priority of a process goes from 0..MAX_PRIO-1, valid RT * priority is 0..MAX_RT_PRIO-1, and SCHED_NORMAL/SCHED_BATCH @@ -17,8 +21,8 @@ #define MAX_USER_RT_PRIO 100 #define MAX_RT_PRIO MAX_USER_RT_PRIO -#define MAX_PRIO (MAX_RT_PRIO + 40) -#define DEFAULT_PRIO (MAX_RT_PRIO + 20) +#define MAX_PRIO (MAX_RT_PRIO + NICE_WIDTH) +#define DEFAULT_PRIO (MAX_RT_PRIO + NICE_WIDTH / 2) /* * Convert user-nice values [ -20 ... 0 ... 19 ] -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
