Sparse reports a warning at migrate_write_lock()
warning: context imbalance in migrate_write_lock() - wrong count at exit
The root cause is the missing annotation at migrate_write_lock()
Add the missing __acquires(&zspage->lock)
Signed-off-by: Jules Irenge <jbi.octave@xxxxxxxxx>
---
mm/zsmalloc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 10a96651cb97..7ec69a1140cf 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -1846,6 +1846,7 @@ static void migrate_read_unlock(struct zspage *zspage) __releases(&zspage->lock)
}
static void migrate_write_lock(struct zspage *zspage)
+ __acquires(&zspage->lock)
{
write_lock(&zspage->lock);
}
--
2.24.1
