[PATCH] introduce is_rt_policy() helper
Imho, makes the code a bit easier to read. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -504,8 +504,8 @@ struct signal_struct {
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#define rt_prio(prio) unlikely((prio) < MAX_RT_PRIO)
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#define rt_task(p) rt_prio((p)->prio)
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#define batch_task(p) (unlikely((p)->policy == SCHED_BATCH))
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#define has_rt_policy(p) \
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unlikely((p)->policy != SCHED_NORMAL && (p)->policy != SCHED_BATCH)
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#define is_rt_policy(p) ((p) != SCHED_NORMAL && (p) != SCHED_BATCH)
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#define has_rt_policy(p) unlikely(is_rt_policy((p)->policy))
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/*
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* Some day this will be a full-fledged user tracking system..
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@ -4109,8 +4109,7 @@ recheck:
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(p->mm && param->sched_priority > MAX_USER_RT_PRIO-1) ||
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(!p->mm && param->sched_priority > MAX_RT_PRIO-1))
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return -EINVAL;
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if ((policy == SCHED_NORMAL || policy == SCHED_BATCH)
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!= (param->sched_priority == 0))
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if (is_rt_policy(policy) != (param->sched_priority != 0))
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return -EINVAL;
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/*
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@ -4134,7 +4133,7 @@ recheck:
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!rlim_rtprio)
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return -EPERM;
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/* can't increase priority */
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if ((policy != SCHED_NORMAL && policy != SCHED_BATCH) &&
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if (is_rt_policy(policy) &&
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param->sched_priority > p->rt_priority &&
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param->sched_priority > rlim_rtprio)
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return -EPERM;
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