diff mbox series

[stable-4.4,5/5] padata: purge get_cpu and reorder_via_wq from padata_do_serial

Message ID 20200521205145.1953392-5-daniel.m.jordan@oracle.com
State New
Headers show
Series [stable-4.4,1/5] padata: set cpu_index of unused CPUs to -1 | expand

Commit Message

Daniel Jordan May 21, 2020, 8:51 p.m. UTC 
[ Upstream commit 065cf577135a4977931c7a1e1edf442bfd9773dd]

With the removal of the padata timer, padata_do_serial no longer
needs special CPU handling, so remove it.

Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
---
 kernel/padata.c | 23 +++--------------------
 1 file changed, 3 insertions(+), 20 deletions(-)
diff mbox series

Patch

diff --git a/kernel/padata.c b/kernel/padata.c
index 43b72f5dfe07..c50975f43b34 100644
--- a/kernel/padata.c
+++ b/kernel/padata.c
@@ -322,24 +322,9 @@  static void padata_serial_worker(struct work_struct *serial_work)
  */
 void padata_do_serial(struct padata_priv *padata)
 {
-	int cpu;
-	struct padata_parallel_queue *pqueue;
-	struct parallel_data *pd;
-	int reorder_via_wq = 0;
-
-	pd = padata->pd;
-
-	cpu = get_cpu();
-
-	/* We need to enqueue the padata object into the correct
-	 * per-cpu queue.
-	 */
-	if (cpu != padata->cpu) {
-		reorder_via_wq = 1;
-		cpu = padata->cpu;
-	}
-
-	pqueue = per_cpu_ptr(pd->pqueue, cpu);
+	struct parallel_data *pd = padata->pd;
+	struct padata_parallel_queue *pqueue = per_cpu_ptr(pd->pqueue,
+							   padata->cpu);
 
 	spin_lock(&pqueue->reorder.lock);
 	list_add_tail(&padata->list, &pqueue->reorder.list);
@@ -353,8 +338,6 @@  void padata_do_serial(struct padata_priv *padata)
 	 */
 	smp_mb__after_atomic();
 
-	put_cpu();
-
 	padata_reorder(pd);
 }
 EXPORT_SYMBOL(padata_do_serial);