Commit 71c1a517 authored by Yury Norov's avatar Yury Norov
Browse files

arch/alpha: replace cpumask_weight with cpumask_empty where appropriate 



common_shutdown_1() calls cpumask_weight() to check if any bit of a
given cpumask is set. We can do it more efficiently with cpumask_empty()
because cpumask_empty() stops traversing the cpumask as soon as it finds
first set bit, while cpumask_weight() counts all bits unconditionally.

Signed-off-by: default avatarYury Norov <yury.norov@gmail.com>
parent 8f51558e

arch/alpha/kernel/process.c

+1 −1
Original line number Diff line number Diff line
@@ -125,7 +125,7 @@ common_shutdown_1(void *generic_ptr) 
	/* Wait for the secondaries to halt. */

	set_cpu_present(boot_cpuid, false);

	set_cpu_possible(boot_cpuid, false);

	while (cpumask_weight(cpu_present_mask))

	while (!cpumask_empty(cpu_present_mask))

		barrier();

#endif