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Commit f5b1f4e4 authored by Don Zickus's avatar Don Zickus Committed by Jiri Olsa
Browse files

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: default avatarDon Zickus <dzickus@redhat.com>
Reviewed-by: default avatarNamhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1396896924-129847-3-git-send-email-dzickus@redhat.com


Signed-off-by: default avatarJiri Olsa <jolsa@redhat.com>
parent 7780c25b

tools/perf/util/cpumap.c

+1 −1
Original line number Diff line number Diff line
@@ -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;