Call cpu_relax() API while waiting for the current blk-mq polling
instance to complete.
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@xxxxxxxxxxxx>
---
drivers/scsi/mpt3sas/mpt3sas_base.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index 2528c4e7b0e0..c0d0d311d676 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -1582,8 +1582,10 @@ mpt3sas_base_pause_mq_polling(struct MPT3SAS_ADAPTER *ioc)
* wait for current poll to complete.
*/
for (qid = 0; qid < iopoll_q_count; qid++) {
- while (atomic_read(&ioc->io_uring_poll_queues[qid].busy))
+ while (atomic_read(&ioc->io_uring_poll_queues[qid].busy)) {
+ cpu_relax();
udelay(500);
+ }
}
}
--
2.27.0
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