Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@xxxxxxx>
---
kernel/trace/blktrace.c | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 2b79163384b7..97a7eec4913a 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -1161,7 +1161,25 @@ static void blk_add_trace_rq_requeue(void *ignore,
struct request_queue *q,
struct request *rq)
{
- blk_add_trace_rq(rq, 0, blk_rq_bytes(rq), BLK_TA_REQUEUE,
+ u64 ta;
+ struct blk_trace *bt;
+ struct blk_trace_ext *bte;
+
+ rcu_read_lock();
+ bt = rcu_dereference(rq->q->blk_trace);
+ bte = rcu_dereference(rq->q->blk_trace_ext);
+ if (likely(!bt) && likely(!bte) ) {
+ rcu_read_unlock();
+ return;
+ }
+
+ if (bt) {
+ ta = BLK_TA_REQUEUE;
+ } else if (bte) {
+ ta = BLK_TA_REQUEUE_EXT;
+ }
+ rcu_read_unlock();
+ blk_add_trace_rq(rq, 0, blk_rq_bytes(rq), ta,
blk_trace_request_get_cgid(q, rq));
}
--
2.22.0
