X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=filesetup.c;h=891a55a1ddb97ab30c7cc375cd9246fed21addd8;hp=25ce0c0d88852a162d7afcc1f02952116f7cf842;hb=45be22df81f10ef9d45a30bd06343ae630dcfee0;hpb=89978a6b26f81bdbd63228e2e2a86f604ee46c56

diff --git a/filesetup.c b/filesetup.c
index 25ce0c0d..891a55a1 100644
--- a/filesetup.c
+++ b/filesetup.c
@@ -38,12 +38,76 @@ static inline void clear_error(struct thread_data *td)
 	td->verror[0] = '\0';
 }
 
+static inline int native_fallocate(struct thread_data *td, struct fio_file *f)
+{
+	bool success;
+
+	success = fio_fallocate(f, 0, f->real_file_size);
+	dprint(FD_FILE, "native fallocate of file %s size %llu was "
+			"%ssuccessful\n", f->file_name,
+			(unsigned long long) f->real_file_size,
+			!success ? "un": "");
+
+	if (success)
+		return 0;
+
+	if (errno == ENOSYS)
+		dprint(FD_FILE, "native fallocate is not implemented\n");
+
+	return -1;
+}
+
+static void fallocate_file(struct thread_data *td, struct fio_file *f)
+{
+	int r;
+
+	if (td->o.fill_device)
+		return;
+
+	switch (td->o.fallocate_mode) {
+	case FIO_FALLOCATE_NATIVE:
+		r = native_fallocate(td, f);
+		if (r != 0 && errno != ENOSYS)
+			log_err("fio: native_fallocate call failed: %s\n",
+					strerror(errno));
+		break;
+	case FIO_FALLOCATE_NONE:
+		break;
+#ifdef CONFIG_POSIX_FALLOCATE
+	case FIO_FALLOCATE_POSIX:
+		dprint(FD_FILE, "posix_fallocate file %s size %llu\n",
+				 f->file_name,
+				 (unsigned long long) f->real_file_size);
+
+		r = posix_fallocate(f->fd, 0, f->real_file_size);
+		if (r > 0)
+			log_err("fio: posix_fallocate fails: %s\n", strerror(r));
+		break;
+#endif /* CONFIG_POSIX_FALLOCATE */
+#ifdef CONFIG_LINUX_FALLOCATE
+	case FIO_FALLOCATE_KEEP_SIZE:
+		dprint(FD_FILE, "fallocate(FALLOC_FL_KEEP_SIZE) "
+				"file %s size %llu\n", f->file_name,
+				(unsigned long long) f->real_file_size);
+
+		r = fallocate(f->fd, FALLOC_FL_KEEP_SIZE, 0, f->real_file_size);
+		if (r != 0)
+			td_verror(td, errno, "fallocate");
+
+		break;
+#endif /* CONFIG_LINUX_FALLOCATE */
+	default:
+		log_err("fio: unknown fallocate mode: %d\n", td->o.fallocate_mode);
+		assert(0);
+	}
+}
+
 /*
  * Leaves f->fd open on success, caller must close
  */
 static int extend_file(struct thread_data *td, struct fio_file *f)
 {
-	int r, new_layout = 0, unlink_file = 0, flags;
+	int new_layout = 0, unlink_file = 0, flags;
 	unsigned long long left;
 	unsigned int bs;
 	char *b = NULL;
@@ -100,43 +164,7 @@ static int extend_file(struct thread_data *td, struct fio_file *f)
 		return 1;
 	}
 
-#ifdef CONFIG_POSIX_FALLOCATE
-	if (!td->o.fill_device) {
-		switch (td->o.fallocate_mode) {
-		case FIO_FALLOCATE_NONE:
-			break;
-		case FIO_FALLOCATE_POSIX:
-			dprint(FD_FILE, "posix_fallocate file %s size %llu\n",
-				 f->file_name,
-				 (unsigned long long) f->real_file_size);
-
-			r = posix_fallocate(f->fd, 0, f->real_file_size);
-			if (r > 0) {
-				log_err("fio: posix_fallocate fails: %s\n",
-						strerror(r));
-			}
-			break;
-#ifdef CONFIG_LINUX_FALLOCATE
-		case FIO_FALLOCATE_KEEP_SIZE:
-			dprint(FD_FILE,
-				"fallocate(FALLOC_FL_KEEP_SIZE) "
-				"file %s size %llu\n", f->file_name,
-				(unsigned long long) f->real_file_size);
-
-			r = fallocate(f->fd, FALLOC_FL_KEEP_SIZE, 0,
-					f->real_file_size);
-			if (r != 0)
-				td_verror(td, errno, "fallocate");
-
-			break;
-#endif /* CONFIG_LINUX_FALLOCATE */
-		default:
-			log_err("fio: unknown fallocate mode: %d\n",
-				td->o.fallocate_mode);
-			assert(0);
-		}
-	}
-#endif /* CONFIG_POSIX_FALLOCATE */
+	fallocate_file(td, f);
 
 	/*
 	 * If our jobs don't require regular files initially, we're done.
@@ -171,6 +199,8 @@ static int extend_file(struct thread_data *td, struct fio_file *f)
 	}
 
 	while (left && !td->terminate) {
+		ssize_t r;
+
 		if (bs > left)
 			bs = left;
 
@@ -497,8 +527,6 @@ static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f,
 		}
 		if (ret < 0)
 			errval = errno;
-		else if (ret) /* probably not supported */
-			errval = ret;
 	} else if (f->filetype == FIO_TYPE_CHAR ||
 		   f->filetype == FIO_TYPE_PIPE) {
 		dprint(FD_IO, "invalidate not supported %s\n", f->file_name);
@@ -833,19 +861,22 @@ static unsigned long long get_fs_free_counts(struct thread_data *td)
 uint64_t get_start_offset(struct thread_data *td, struct fio_file *f)
 {
 	struct thread_options *o = &td->o;
-	unsigned long long align_bs;  /* align the offset to this block size */
-	unsigned long long offset;  /* align_bs-aligned offset */
+	unsigned long long align_bs;
+	unsigned long long offset;
 
 	if (o->file_append && f->filetype == FIO_TYPE_FILE)
 		return f->real_file_size;
 
 	if (o->start_offset_percent > 0) {
-
-		/* if blockalign is provided, find the min across read, write, and trim */
+		/*
+		 * if blockalign is provided, find the min across read, write,
+		 * and trim
+		 */
 		if (fio_option_is_set(o, ba)) {
 			align_bs = (unsigned long long) min(o->ba[DDIR_READ], o->ba[DDIR_WRITE]);
 			align_bs = min((unsigned long long) o->ba[DDIR_TRIM], align_bs);
-		} else {  /* else take the minimum block size */
+		} else {
+			/* else take the minimum block size */
 			align_bs = td_min_bs(td);
 		}
 
@@ -853,14 +884,18 @@ uint64_t get_start_offset(struct thread_data *td, struct fio_file *f)
 		offset = (f->real_file_size * o->start_offset_percent / 100) +
 			(td->subjob_number * o->offset_increment);
 
-		/* block align the offset at the next available boundary at
-		   ceiling(offset / align_bs) * align_bs */
+		/*
+		 * block align the offset at the next available boundary at
+		 * ceiling(offset / align_bs) * align_bs
+		 */
 		offset = (offset / align_bs + (offset % align_bs != 0)) * align_bs;
 
-	} else {  /* start_offset_percent not set */
-		offset = o->start_offset + o->start_offset +
-			td->subjob_number * o->offset_increment;
+	} else {
+		/* start_offset_percent not set */
+		offset = o->start_offset +
+				td->subjob_number * o->offset_increment;
 	}
+
 	return offset;
 }
 
@@ -1009,7 +1044,14 @@ int setup_files(struct thread_data *td)
 			total_size = -1ULL;
 		else {
                         if (o->size_percent) {
-				f->io_size = (f->io_size * o->size_percent) / 100;
+				uint64_t file_size;
+
+				file_size = f->io_size + f->file_offset;
+				f->io_size = (file_size *
+					      o->size_percent) / 100;
+				if (f->io_size > (file_size - f->file_offset))
+					f->io_size = file_size - f->file_offset;
+
 				f->io_size -= (f->io_size % td_min_bs(td));
 			}
 			total_size += f->io_size;
@@ -1801,3 +1843,32 @@ 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
+}