From 8676997959dfa8eff103c613490883f9f446c5a5 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Tue, 29 Mar 2022 15:55:44 -0700 Subject: [PATCH] FROMLIST: scsi: ufs: Reduce the clock scaling latency Wait at most 20 ms before rechecking the doorbells instead of waiting for a potentially long time between doorbell checks. Bug: 227177294 Link: https://lore.kernel.org/all/20220427233855.2685505-2-bvanassche@acm.org/ Change-Id: I8a4dd0e93ca02435264961851a095a9c83c68240 Signed-off-by: Bart Van Assche --- drivers/scsi/ufs/ufshcd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 5c5c98d5dd24..6a810b956fbb 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -1111,7 +1111,7 @@ static int ufshcd_wait_for_doorbell_clr(struct ufs_hba *hba, } spin_unlock_irqrestore(hba->host->host_lock, flags); - schedule(); + io_schedule_timeout(msecs_to_jiffies(20)); if (ktime_to_us(ktime_sub(ktime_get(), start)) > wait_timeout_us) { timeout = true;