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-rw-r--r--kernel/smp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/smp.c b/kernel/smp.c
index 8e451f3..b320622 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -109,7 +109,7 @@ static void csd_lock_wait(struct call_single_data *data)
static void csd_lock(struct call_single_data *data)
{
csd_lock_wait(data);
- data->flags = CSD_FLAG_LOCK;
+ data->flags |= CSD_FLAG_LOCK;
/*
* prevent CPU from reordering the above assignment
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