[PATCH 1/1] cpu: Add annotation inside clear_tasks_mm_cpumask()

[Jules Irenge]

Sparse reports a warning

warning: context imbalance in clear_tasks_mm_cpumask() - different lock contexts for basic block

The root cause is the missing annotation inside clear_tasks_mm_cpumask()

Add the missing __acquire(&t->alloc_lock) annotation.

Signed-off-by: Jules Irenge <jbi.octave@xxxxxxxxx>
---
 kernel/cpu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/cpu.c b/kernel/cpu.c
index 9c706af713fb..d8c452a8dd09 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -834,6 +834,7 @@ void clear_tasks_mm_cpumask(int cpu)
 		t = find_lock_task_mm(p);
 		if (!t)
 			continue;
+		__acquire(&t->alloc_lock);
 		cpumask_clear_cpu(cpu, mm_cpumask(t->mm));
 		task_unlock(t);
 	}
-- 
2.24.1