>@@ -686,9 +685,10 @@ void aio_complete(struct kiocb *iocb, long res, long res2) > * ctx->ctx_lock to prevent other code from messing with the tail > * pointer since we might be called from irq context. > */
Well the comment is stale. Hillf >- spin_lock_irqsave(&ctx->completion_lock, flags); >+ local_irq_save(flags); >+ while ((tail = xchg(&ctx->tail, UINT_MAX)) == UINT_MAX) >+ cpu_relax(); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
