test that unregister_files processes task work
Ensure that unregister_files processes task work from defer_taskrun even
when not explicitly flushed.
Link:
@@ -935,6 +935,59 @@ static int test_zero_range_alloc(struct io_uring *ring, int fds[2])
return 0;
}
+static int test_defer_taskrun(void)
+{
+ struct io_uring_sqe *sqe;
+ struct io_uring ring;
+ int ret, fds[2];
+ char buff = 'x';
+
+ ret = io_uring_queue_init(8, &ring,
+ IORING_SETUP_DEFER_TASKRUN | IORING_SETUP_SINGLE_ISSUER);
+ if (ret) {
+ fprintf(stderr, "ring init\n");
+ return 1;
+ }
+
+ ret = pipe(fds);
+ if (ret) {
+ fprintf(stderr, "bad pipes\n");
+ return 1;
+ }
+
+ ret = io_uring_register_files(&ring, &fds[0], 2);
+ if (ret) {
+ fprintf(stderr, "bad register %d\n", ret);
+ return 1;
+ }
+
+ sqe = io_uring_get_sqe(&ring);
+ io_uring_prep_read(sqe, 0, &buff, 1, 0);
+ sqe->flags |= IOSQE_FIXED_FILE;
+ ret = io_uring_submit(&ring);
+ if (ret != 1) {
+ fprintf(stderr, "bad submit\n");
+ return 1;
+ }
+
+ ret = write(fds[1], &buff, 1);
+ if (ret != 1) {
+ fprintf(stderr, "bad pipe write\n");
+ return 1;
+ }
+
+ ret = io_uring_unregister_files(&ring);
+ if (ret) {
+ fprintf(stderr, "bad unregister %d\n", ret);
+ return 1;
+ }
+
+ close(fds[0]);
+ close(fds[1]);
+ io_uring_queue_exit(&ring);
+ return 0;
+}
+
static int test_file_alloc_ranges(void)
{
struct io_uring ring;
@@ -1120,5 +1173,13 @@ int main(int argc, char *argv[])
return T_EXIT_FAIL;
}
+ if (t_probe_defer_taskrun()) {
+ ret = test_defer_taskrun();
+ if (ret) {
+ fprintf(stderr, "test_defer_taskrun failed\n");
+ return T_EXIT_FAIL;
+ }
+ }
+
return T_EXIT_PASS;
}
