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Commit a207d5c4 authored by Pavankumar Kondeti's avatar Pavankumar Kondeti
Browse files

core_ctl: Take state_lock while preparing the global_state 



global_state file output is prepared by reading the members of CPU
and cluster data structures. These members are updated under state_lock,
so acquire the same lock while preparing the output.

Change-Id: I8cb3ca6f9100a24f0bc9b293d364ad6aa8aabefb
Signed-off-by: default avatarPavankumar Kondeti <pkondeti@codeaurora.org>
parent 68e85fd7

kernel/sched/core_ctl.c

+2 −0
Original line number Diff line number Diff line
@@ -260,6 +260,7 @@ static ssize_t show_global_state(const struct cluster_data *state, char *buf) 
	ssize_t count = 0;

	unsigned int cpu;



	spin_lock_irq(&state_lock);

	for_each_possible_cpu(cpu) {

		c = &per_cpu(cpu_state, cpu);

		cluster = c->cluster;
@@ -295,6 +296,7 @@ static ssize_t show_global_state(const struct cluster_data *state, char *buf) 
		count += snprintf(buf + count, PAGE_SIZE - count,

				"\tBoost: %u\n", (unsigned int) cluster->boost);

	}

	spin_unlock_irq(&state_lock);



	return count;

}