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-rw-r--r--kernel/smp.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/smp.c b/kernel/smp.c
index 5099db15c5fb..300d29391e07 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -107,8 +107,7 @@ void __init call_function_init(void)
*/
static __always_inline void csd_lock_wait(struct call_single_data *csd)
{
- while (smp_load_acquire(&csd->flags) & CSD_FLAG_LOCK)
- cpu_relax();
+ smp_cond_acquire(!(csd->flags & CSD_FLAG_LOCK));
}
static __always_inline void csd_lock(struct call_single_data *csd)