| Message ID | 20220123183925.1052919-22-yury.norov@gmail.com |
|---|---|
| State | Accepted |
| Commit | 1c4cafd11599abdbc53a520f0b6e6799d037eae1 |
| Headers | show |
| Series | None | expand |
diff --git a/kernel/padata.c b/kernel/padata.c index 18d3a5c699d8..e5819bb8bd1d 100644 --- a/kernel/padata.c +++ b/kernel/padata.c @@ -181,7 +181,7 @@ int padata_do_parallel(struct padata_shell *ps, goto out; if (!cpumask_test_cpu(*cb_cpu, pd->cpumask.cbcpu)) { - if (!cpumask_weight(pd->cpumask.cbcpu)) + if (cpumask_empty(pd->cpumask.cbcpu)) goto out; /* Select an alternate fallback CPU and notify the caller. */
padata_do_parallel() 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> --- kernel/padata.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)