On Mon, Apr 11, 2022 at 04:00:18PM -0400, yanjun.zhu@xxxxxxxxx wrote: > @@ -138,8 +139,10 @@ void *rxe_alloc(struct rxe_pool *pool) > elem->obj = obj; > kref_init(&elem->ref_cnt); > > - err = xa_alloc_cyclic(&pool->xa, &elem->index, elem, pool->limit, > - &pool->next, GFP_KERNEL); > + xa_lock_irqsave(&pool->xa, flags); > + err = __xa_alloc_cyclic(&pool->xa, &elem->index, elem, pool->limit, > + &pool->next, GFP_ATOMIC); > + xa_unlock_irqrestore(&pool->xa, flags); No to using atomics, this needs to be either the _irq or _bh varient Jason
