X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=filesetup.c;h=789f0ed29ea501be4c5e3c3ee895093b305b5787;hb=b47b45887dcd4c9bd7d0391a393809ef892a34ff;hp=362997c15856dbb83b2ab39a0a123e217dd65dd7;hpb=cbbdf1c8f1aa13c9030808720e04ea1081fd57eb;p=fio.git

diff --git a/filesetup.c b/filesetup.c
index 362997c1..789f0ed2 100644
--- a/filesetup.c
+++ b/filesetup.c
@@ -67,7 +67,7 @@ static void fallocate_file(struct thread_data *td, struct fio_file *f)
 	switch (td->o.fallocate_mode) {
 	case FIO_FALLOCATE_NATIVE:
 		r = native_fallocate(td, f);
-		if (r != 0)
+		if (r != 0 && errno != ENOSYS)
 			log_err("fio: native_fallocate call failed: %s\n",
 					strerror(errno));
 		break;
@@ -1588,7 +1588,8 @@ int add_file(struct thread_data *td, const char *fname, int numjob, int inc)
 	if (f->filetype == FIO_TYPE_FILE)
 		td->nr_normal_files++;
 
-	set_already_allocated(file_name);
+	if (td->o.numjobs > 1)
+		set_already_allocated(file_name);
 
 	if (inc)
 		td->o.nr_files++;
@@ -1843,3 +1844,32 @@ void filesetup_mem_free(void)
 {
 	free_already_allocated();
 }
+
+/*
+ * This function is for platforms which support direct I/O but not O_DIRECT.
+ */
+int fio_set_directio(struct thread_data *td, struct fio_file *f)
+{
+#ifdef FIO_OS_DIRECTIO
+	int ret = fio_set_odirect(f);
+
+	if (ret) {
+		td_verror(td, ret, "fio_set_directio");
+#if defined(__sun__)
+		if (ret == ENOTTY) { /* ENOTTY suggests RAW device or ZFS */
+			log_err("fio: doing directIO to RAW devices or ZFS not supported\n");
+		} else {
+			log_err("fio: the file system does not seem to support direct IO\n");
+		}
+#else
+		log_err("fio: the file system does not seem to support direct IO\n");
+#endif
+		return -1;
+	}
+
+	return 0;
+#else
+	log_err("fio: direct IO is not supported on this host operating system\n");
+	return -1;
+#endif
+}