Update Linux to v5.10.157
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.157.tar.xz
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: I7b30d9e98d8c465d6b44de8e7433b4a40b3289ba
diff --git a/crypto/cryptd.c b/crypto/cryptd.c
index a1bea0f..668095e 100644
--- a/crypto/cryptd.c
+++ b/crypto/cryptd.c
@@ -39,6 +39,10 @@
};
struct cryptd_queue {
+ /*
+ * Protected by disabling BH to allow enqueueing from softinterrupt and
+ * dequeuing from kworker (cryptd_queue_worker()).
+ */
struct cryptd_cpu_queue __percpu *cpu_queue;
};
@@ -125,28 +129,28 @@
static int cryptd_enqueue_request(struct cryptd_queue *queue,
struct crypto_async_request *request)
{
- int cpu, err;
+ int err;
struct cryptd_cpu_queue *cpu_queue;
refcount_t *refcnt;
- cpu = get_cpu();
+ local_bh_disable();
cpu_queue = this_cpu_ptr(queue->cpu_queue);
err = crypto_enqueue_request(&cpu_queue->queue, request);
refcnt = crypto_tfm_ctx(request->tfm);
if (err == -ENOSPC)
- goto out_put_cpu;
+ goto out;
- queue_work_on(cpu, cryptd_wq, &cpu_queue->work);
+ queue_work_on(smp_processor_id(), cryptd_wq, &cpu_queue->work);
if (!refcount_read(refcnt))
- goto out_put_cpu;
+ goto out;
refcount_inc(refcnt);
-out_put_cpu:
- put_cpu();
+out:
+ local_bh_enable();
return err;
}
@@ -162,15 +166,10 @@
cpu_queue = container_of(work, struct cryptd_cpu_queue, work);
/*
* Only handle one request at a time to avoid hogging crypto workqueue.
- * preempt_disable/enable is used to prevent being preempted by
- * cryptd_enqueue_request(). local_bh_disable/enable is used to prevent
- * cryptd_enqueue_request() being accessed from software interrupts.
*/
local_bh_disable();
- preempt_disable();
backlog = crypto_get_backlog(&cpu_queue->queue);
req = crypto_dequeue_request(&cpu_queue->queue);
- preempt_enable();
local_bh_enable();
if (!req)