12 #include <aio.h>
23 	struct aio_context *aio;  member
30  * If we have the headers, we are going to build with AIO enabled.
31  * If we don't have aio in libc, we define the necessary stubs here.
67 		  int len, unsigned long long offset, struct aio_context *aio)  in do_aio()  argument
70 				    .aio_data       = (unsigned long) aio,  in do_aio()
192 		reply = ((struct aio_thread_reply) { .data 	= req.aio,  in not_aio_thread()
194 		err = write(req.aio->reply_fd, &reply, sizeof(reply));  in not_aio_thread()
197 			       "fd = %d, err = %d\n", req.aio->reply_fd, errno);  in not_aio_thread()
236 	printk(UM_KERN_INFO "2.6 host AIO support not used - falling back to "  in init_aio_24()
261 	printk(UM_KERN_INFO "Using 2.6 host AIO\n");  in init_aio_26()
266 			 unsigned long long offset, struct aio_context *aio)  in submit_aio_26()  argument
271 	err = do_aio(ctx, type, io_fd, buf, len, offset, aio);  in submit_aio_26()
273 		reply = ((struct aio_thread_reply) { .data = aio,  in submit_aio_26()
275 		err = write(aio->reply_fd, &reply, sizeof(reply));  in submit_aio_26()
279 			       "fd = %d, err = %d\n", aio->reply_fd, -err);  in submit_aio_26()
295 			 unsigned long long offset, struct aio_context *aio)  in submit_aio_26()  argument
310 __uml_setup("aio=2.4", set_aio_24,
311 "aio=2.4\n"
312 "    This is used to force UML to use 2.4-style AIO even when 2.6 AIO is\n"
313 "    available.  2.4 AIO is a single thread that handles one request at a\n"
314 "    time, synchronously.  2.6 AIO is a thread which uses the 2.6 AIO \n"
315 "    interface to handle an arbitrary number of pending requests.  2.6 AIO \n"
319 "    your /usr/include/linux in order to build an AIO-capable UML\n\n"
329 			printk(UM_KERN_INFO "2.6 AIO not supported on the "  in init_aio()
330 			       "host - reverting to 2.4 AIO\n");  in init_aio()
362 			 unsigned long long offset, struct aio_context *aio)  in submit_aio_24()  argument
369 				      .aio		= aio,  in submit_aio_24()
383 	       struct aio_context *aio)  in submit_aio()  argument
385 	aio->reply_fd = reply_fd;  in submit_aio()
387 		return submit_aio_24(type, io_fd, buf, len, offset, aio);  in submit_aio()
389 		return submit_aio_26(type, io_fd, buf, len, offset, aio);  in submit_aio()