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perf tools: Use cpu/possible instead of cpu/kernel_max 

The system's max configuration is represented by cpu/possible and
cpu/kernel_max can be huge (4096 vs. 128), so save space by keeping
smaller structures.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1396896924-129847-3-git-send-email-dzickus@redhat.com
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
This commit is contained in:
Don Zickus 2014-04-07 14:55:22 -04:00 committed by Jiri Olsa
parent 7780c25bae
commit f5b1f4e483
1 changed files with 1 additions and 1 deletions
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2
tools/perf/util/cpumap.c
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@ -365,7 +365,7 @@ static void set_max_cpu_num(void)
goto out;
/* get the highest possible cpu number for a sparse allocation */
ret = snprintf(path, PATH_MAX, "%s/devices/system/cpu/kernel_max", mnt);
ret = snprintf(path, PATH_MAX, "%s/devices/system/cpu/possible", mnt);
if (ret == PATH_MAX) {
pr_err("sysfs path crossed PATH_MAX(%d) size\n", PATH_MAX);
goto out;