> Use blk_mq_quiesce_tagset() / blk_mq_unquiesce_tagset() instead of
> scsi_block_requests() / scsi_unblock_requests() because the former wait for
> ongoing SCSI command dispatching to finish while the latter do not.
>
> Fixes: 2e3611e9546c ("scsi: ufs: fix exception event handling")
I think that when Maya introduced the scsi_block_requests calls (2018),
the block tagset quiesce api wasn't available yet (2022).
Thanks,
Avri
> Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
> ---
> drivers/ufs/core/ufshcd.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index
> 76884df580c3..ff1b0af74041 100644
> --- a/drivers/ufs/core/ufshcd.c
> +++ b/drivers/ufs/core/ufshcd.c
> @@ -6195,7 +6195,7 @@ static void ufshcd_exception_event_handler(struct
> work_struct *work)
> u32 status = 0;
> hba = container_of(work, struct ufs_hba, eeh_work);
>
> - ufshcd_scsi_block_requests(hba);
> + blk_mq_quiesce_tagset(&hba->host->tag_set);
> err = ufshcd_get_ee_status(hba, &status);
> if (err) {
> dev_err(hba->dev, "%s: failed to get exception status %d\n", @@ -
> 6213,7 +6213,7 @@ static void ufshcd_exception_event_handler(struct
> work_struct *work)
>
> ufs_debugfs_exception_event(hba, status);
> out:
> - ufshcd_scsi_unblock_requests(hba);
> + blk_mq_unquiesce_tagset(&hba->host->tag_set);
> }
>
> /* Complete requests that have door-bell cleared */
