kernel: start cleaning up VfsRequest

* I'm being more strict about the linked list state to hopefully ensure
  I'm not leaking any references.
* vfsreq_create was renamed to vfsreq_dispatchcopy as that name feels more
  clear. It copies its argument, and dispatches it.
* Requests for user backends are now handled more like requests for kernel
  backends - there's an accept() function that accepts a request.

2 files changed, 7 insertions, 7 deletions

diff --git a/src/cmd/tests/kernel/fs.c b/src/cmd/tests/kernel/fs.c
index 6d4f4f4..a19f3fb 100644
--- a/src/cmd/tests/kernel/fs.c
+++ b/src/cmd/tests/kernel/fs.c
@@ -12,14 +12,14 @@ static void test_unfinished_req(void) {
 		// TODO make a similar test with all 0s passed to fs_wait
 		struct ufs_request res;
 		_sys_fs_wait(NULL, 0, &res);
-		// TODO second fs_wait
 		exit(0);
 	} else {
 		test(0 <= h);
 		test(_sys_mount(h, "/", 1) == 0);
-		int ret = _sys_open("/", 1, 0);
-		test(ret < 0);
-		// the handler quits while handling that call - but this syscall should return anyways
+		/* the handler quits while handling this call */
+		test(_sys_open("/", 1, 0) == -EPIPE);
+		/* now it's dead, at this shouldn't hang either */
+		test(_sys_open("/", 1, 0) == -EPIPE);
 	}
 }
 
diff --git a/src/cmd/tests/kernel/miscsyscall.c b/src/cmd/tests/kernel/miscsyscall.c
index 883fcee..c9daaf8 100644
--- a/src/cmd/tests/kernel/miscsyscall.c
+++ b/src/cmd/tests/kernel/miscsyscall.c
@@ -318,9 +318,9 @@ static void test_getnull(void) {
 	test(_sys_fs_respond(h, buf, 16, 0) == -EBADF);
 
 	/* making some assumptions about the testing environment here... */
-	test(_sys_open("/test", 5, OPEN_READ) != -EGENERIC);
-	test(_sys_mount(h, "/test", 5) == 0);
-	test(_sys_open("/test", 5, OPEN_READ) == -EGENERIC);
+	test(_sys_open("/tmp/", 5, OPEN_READ) != -ENOENT);
+	test(_sys_mount(h, "/tmp/", 5) == 0);
+	test(_sys_open("/tmp/", 5, OPEN_READ) == -ENOENT);
 
 	close(h);
 	close(h2);