Commit 98d835ff authored May 01, 2012 by Jin Hong Committed by Matt Wagantall May 30, 2015

arm: show present cpu instead of online cpu in /proc/cpuinfo



Some userspace applications use /proc/cpuinfo 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/cpuinfo if we only show online cpu in
/proc/cpuinfo.

CRs-Fixed: 354430
Change-Id: I22a15d2d141c713dcd4abaa8bb74ecad6508900f
Signed-off-by: Jin Hong <jinh@codeaurora.org>

parent 85586c29

arch/arm/kernel/setup.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1034,7 +1034,7 @@ static int c_show(struct seq_file m, void v)
		int i, j;
		u32 cpuid;

		for_each_online_cpu(i) {
		for_each_present_cpu(i) {
		/*
		* glibc reads /proc/cpuinfo to determine the number of
		* online processors, looking for lines beginning with