Re: [PATCH v2 01/12] aoe: Enable lock context analysis

[Bart Van Assche <bvanassche@acm.org>]

On 8/3/26 5:53 AM, Nilay Shroff wrote:
> As I see, iocq->lock guards iocq->head. So shouldn't we annotate
> iocq->head with __guarded_by(iocq->lock)? For instance,
> 
> struct iocq_ktio {
>      struct list_head head;
>                  __guarded_by(&lock);
>      spinlock_t lock;
> };

How about integrating the change below into this patch?

diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index 54c57b9f8894..7ceda4ee4e55 100644
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c
@@ -51,8 +51,8 @@ static struct ktstate *kts;

  /* io completion queue */
  struct iocq_ktio {
-	struct list_head head;
  	spinlock_t lock;
+	struct list_head head __guarded_by(&lock);
  };
  static struct iocq_ktio *iocq;

@@ -1717,8 +1717,8 @@ aoecmd_init(void)
  	}

  	for (i = 0; i < ncpus; i++) {
-		INIT_LIST_HEAD(&iocq[i].head);
-		spin_lock_init(&iocq[i].lock);
+		scoped_guard(spinlock_init, &iocq[i].lock)
+			INIT_LIST_HEAD(&iocq[i].head);
  		init_waitqueue_head(&ktiowq[i]);
  		snprintf(kts[i].name, sizeof(kts[i].name), "aoe_ktio%d", i);
  		kts[i].fn = ktio;

Thanks,

Bart.