[PATCH] percpu: use INT_MAX as sentinel value of unit_map
in [Kernel]
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From: Namhyung Kim on 10 Aug 2010 11:00 unit_map is a pointer to int so it would be more reasonable to use INT_MAX as sentinel value. Signed-off-by: Namhyung Kim <namhyung(a)gmail.com> --- mm/percpu.c | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff --git a/mm/percpu.c b/mm/percpu.c index 6470e77..9581f84 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -1390,7 +1390,7 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai, unit_off = alloc_bootmem(nr_cpu_ids * sizeof(unit_off[0])); for (cpu = 0; cpu < nr_cpu_ids; cpu++) - unit_map[cpu] = UINT_MAX; + unit_map[cpu] = INT_MAX; pcpu_first_unit_cpu = NR_CPUS; for (group = 0, unit = 0; group < ai->nr_groups; group++, unit += i) { @@ -1406,7 +1406,7 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai, PCPU_SETUP_BUG_ON(cpu > nr_cpu_ids); PCPU_SETUP_BUG_ON(!cpu_possible(cpu)); - PCPU_SETUP_BUG_ON(unit_map[cpu] != UINT_MAX); + PCPU_SETUP_BUG_ON(unit_map[cpu] != INT_MAX); unit_map[cpu] = unit + i; unit_off[cpu] = gi->base_offset + i * ai->unit_size; @@ -1419,7 +1419,7 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai, pcpu_nr_units = unit; for_each_possible_cpu(cpu) - PCPU_SETUP_BUG_ON(unit_map[cpu] == UINT_MAX); + PCPU_SETUP_BUG_ON(unit_map[cpu] == INT_MAX); /* we're done parsing the input, undefine BUG macro and dump config */ #undef PCPU_SETUP_BUG_ON -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |