diff options
| author | Yury Norov <yury.norov@gmail.com> | 2022-01-23 10:38:44 -0800 |
|---|---|---|
| committer | Yury Norov <yury.norov@gmail.com> | 2022-06-03 06:52:57 -0700 |
| commit | 71c1a517e3da992fbbafb5c0b82a87c7eafc3383 (patch) | |
| tree | c5fa6e35d46f9d2abc62131aa2df8945af4b0845 | |
| parent | 8f51558e8015c1994aee2d8747a60cdcb47aeecd (diff) | |
| download | linux-71c1a517e3da992fbbafb5c0b82a87c7eafc3383.tar.gz | |
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>
| -rw-r--r-- | arch/alpha/kernel/process.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c index 5f8527081da92f..0d4bc60828bf63 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 |