zdtm: Simple test for AIO ring

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

test/zdtm.sh

@@ -20,6 +20,7 @@ static/cwd00
 static/cwd01
 static/cwd02
 static/env00
+static/aio00
 static/maps00
 static/maps01
 static/maps02
@@ -190,6 +191,7 @@ static/remap_dead_pid
 TEST_CR_KERNEL="
 ns/static/tun
 static/timerfd
+static/aio00
 "
 
 cat /proc/self/fdinfo/1 | grep -q mnt_id

test/zdtm/live/static/Makefile

@@ -116,6 +116,7 @@ TST_NOFILE	=				\
 		dumpable01			\
 		dumpable02			\
 		remap_dead_pid			\
+		aio00				\
 		fd				\
 #		jobctl00			\
 
@@ -272,6 +273,7 @@ wait_stop:
 
 $(TST):	$(LIB)
 
+aio00:			override LDFLAGS += -laio
 futex.o:		override CFLAGS += -pthread
 futex:			override LDFLAGS += -pthread
 futex-rl.o:		override CFLAGS += -pthread

test/zdtm/live/static/aio00.c

+#include <libaio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "zdtmtst.h"
+
+const char *test_doc	= "Check that plain io_setup works";
+const char *test_author	= "Pavel Emelianov <xemul@parallels.com>";
+
+int main(int argc, char **argv)
+{
+	int ret;
+	io_context_t ctx = 0;
+
+	test_init(argc, argv);
+
+	if (io_setup(1, &ctx) < 0) {
+		err("Can't setup io ctx");
+		return 1;
+	}
+
+	test_daemon();
+	test_waitsig();
+
+	ret = io_getevents(ctx, 0, 1, NULL, NULL);
+	if (ret != 0) {
+		if (ret < 0)
+			fail("IO ctx lost (%d)", ret);
+		else
+			fail("IO ctx screwed up (%d)", ret);
+	} else
+		pass();
+
+	return 0;
+}