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authorYury Norov2022-01-23 10:38:44 -0800
committerYury Norov2022-06-03 06:52:57 -0700
commit71c1a517e3da992fbbafb5c0b82a87c7eafc3383 (patch)
treec5fa6e35d46f9d2abc62131aa2df8945af4b0845 /arch/alpha
parent8f51558e8015c1994aee2d8747a60cdcb47aeecd (diff)
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: Yury Norov <yury.norov@gmail.com>
Diffstat (limited to 'arch/alpha')
-rw-r--r--arch/alpha/kernel/process.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 5f8527081da9..0d4bc60828bf 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -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