ich777/linux_media
1
0
Fork 0
mirror of https://github.com/tbsdtv/linux_media.git synced 2025-07-23 12:43:29 +02:00
Code Issues Packages Projects Releases Wiki Activity

arch/alpha: replace cpumask_weight with cpumask_empty where appropriate

Browse Source 
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>
This commit is contained in:
Yury Norov
2022-01-23 10:38:44 -08:00
parent 8f51558e80
commit 71c1a517e3
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/alpha/kernel/process.c
View File

@@ -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