[PATCH] cpuset: minor code refinements
A couple of minor code simplifications to the kernel/cpuset.c code. No functional change. Just a little less code and a little more readable. Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -729,9 +729,11 @@ static int validate_change(const struct cpuset *cur, const struct cpuset *trial)
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}
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/* Remaining checks don't apply to root cpuset */
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if ((par = cur->parent) == NULL)
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if (cur == &top_cpuset)
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return 0;
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par = cur->parent;
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/* We must be a subset of our parent cpuset */
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if (!is_cpuset_subset(trial, par))
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return -EACCES;
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@ -1060,10 +1062,7 @@ static int update_flag(cpuset_flagbits_t bit, struct cpuset *cs, char *buf)
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cpu_exclusive_changed =
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(is_cpu_exclusive(cs) != is_cpu_exclusive(&trialcs));
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mutex_lock(&callback_mutex);
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if (turning_on)
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set_bit(bit, &cs->flags);
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else
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clear_bit(bit, &cs->flags);
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cs->flags = trialcs.flags;
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mutex_unlock(&callback_mutex);
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if (cpu_exclusive_changed)
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