proc: show present cpu instead of online cpu in /proc/stat
Some userspace applications use /proc/stat to determine how many CPUs
the system has. CPU hotplug can offline a CPU at runtime and causing the
offline CPU not present in /proc/stat if we only show online cpu in
/proc/stat.
Change-Id: I4fd0cfcdb174244044634389da2fbdef77744c19
Signed-off-by: Ajay Dudani <adudani@codeaurora.org>
diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index 64c3b31..aa24919 100644
--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -124,7 +124,7 @@
seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(guest_nice));
seq_putc(p, '\n');
- for_each_online_cpu(i) {
+ for_each_present_cpu(i) {
/* Copy values here to work around gcc-2.95.3, gcc-2.96 */
user = kcpustat_cpu(i).cpustat[CPUTIME_USER];
nice = kcpustat_cpu(i).cpustat[CPUTIME_NICE];