X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=backend.c;h=58c77cbc6fa3c2862b29eba289efe7ca2bb2bed5;hp=d8f4f4cfb28e807ba98e2dc8735cc0609acd980e;hb=b392f36daf7a6c2895d899320fa89d35722567c2;hpb=34febb23fa9c7b9b0d54c324effff1a808a8fe6e

diff --git a/backend.c b/backend.c
index d8f4f4cf..58c77cbc 100644
--- a/backend.c
+++ b/backend.c
@@ -603,6 +603,15 @@ static void do_verify(struct thread_data *td, uint64_t verify_bytes)
 	if (td->error)
 		return;
 
+	/*
+	 * verify_state needs to be reset before verification
+	 * proceeds so that expected random seeds match actual
+	 * random seeds in headers. The main loop will reset
+	 * all random number generators if randrepeat is set.
+	 */
+	if (!td->o.rand_repeatable)
+		td_fill_verify_state_seed(td);
+
 	td_set_runstate(td, TD_VERIFYING);
 
 	io_u = NULL;
@@ -1799,6 +1808,39 @@ err:
 	return (void *) (uintptr_t) td->error;
 }
 
+
+/*
+ * We cannot pass the td data into a forked process, so attach the td and
+ * pass it to the thread worker.
+ */
+static int fork_main(struct sk_out *sk_out, int shmid, int offset)
+{
+	struct fork_data *fd;
+	void *data, *ret;
+
+#if !defined(__hpux) && !defined(CONFIG_NO_SHM)
+	data = shmat(shmid, NULL, 0);
+	if (data == (void *) -1) {
+		int __err = errno;
+
+		perror("shmat");
+		return __err;
+	}
+#else
+	/*
+	 * HP-UX inherits shm mappings?
+	 */
+	data = threads;
+#endif
+
+	fd = calloc(1, sizeof(*fd));
+	fd->td = data + offset * sizeof(struct thread_data);
+	fd->sk_out = sk_out;
+	ret = thread_main(fd);
+	shmdt(data);
+	return (int) (uintptr_t) ret;
+}
+
 static void dump_td_info(struct thread_data *td)
 {
 	log_err("fio: job '%s' (state=%d) hasn't exited in %lu seconds, it "
@@ -2136,7 +2178,6 @@ reap:
 		struct thread_data *map[REAL_MAX_JOBS];
 		struct timeval this_start;
 		int this_jobs = 0, left;
-		struct fork_data *fd;
 
 		/*
 		 * create threads (TD_NOT_CREATED -> TD_CREATED)
@@ -2186,13 +2227,14 @@ reap:
 			map[this_jobs++] = td;
 			nr_started++;
 
-			fd = calloc(1, sizeof(*fd));
-			fd->td = td;
-			fd->sk_out = sk_out;
-
 			if (td->o.use_thread) {
+				struct fork_data *fd;
 				int ret;
 
+				fd = calloc(1, sizeof(*fd));
+				fd->td = td;
+				fd->sk_out = sk_out;
+
 				dprint(FD_PROCESS, "will pthread_create\n");
 				ret = pthread_create(&td->thread, NULL,
 							thread_main, fd);
@@ -2212,9 +2254,8 @@ reap:
 				dprint(FD_PROCESS, "will fork\n");
 				pid = fork();
 				if (!pid) {
-					int ret;
+					int ret = fork_main(sk_out, shm_id, i);
 
-					ret = (int)(uintptr_t)thread_main(fd);
 					_exit(ret);
 				} else if (i == fio_debug_jobno)
 					*fio_debug_jobp = pid;
@@ -2356,7 +2397,7 @@ int fio_backend(struct sk_out *sk_out)
 			for (i = 0; i < DDIR_RWDIR_CNT; i++) {
 				struct io_log *log = agg_io_log[i];
 
-				flush_log(log, 0);
+				flush_log(log, false);
 				free_log(log);
 			}
 		}