scsi: ufs: Use WQ_HIGHPRI for gating work

Must have WQ_MEM_RECLAIM

``WQ_MEM_RECLAIM``

  All workqueues which might be used in the memory reclaim paths **MUST**
  have this flag set.  The wq is guaranteed to have at least one execution
  context regardless of memory pressure.

Link: https://lore.kernel.org/r/20201117165839.1643377-5-jaegeuk@kernel.org
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 439eef5..c440001 100644 (file)
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1878,7 +1878,7 @@ static void ufshcd_init_clk_gating(struct ufs_hba *hba)
        snprintf(wq_name, ARRAY_SIZE(wq_name), "ufs_clk_gating_%d",
                 hba->host->host_no);
        hba->clk_gating.clk_gating_workq = alloc_ordered_workqueue(wq_name,
-                                                          WQ_MEM_RECLAIM);
+                                       WQ_MEM_RECLAIM | WQ_HIGHPRI);
 
        hba->clk_gating.is_enabled = true;