X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=filesetup.c;h=1372177efc67a6499c4a3c48483ff6b92981d981;hp=d57a3277563c3a45c13943dcc00da0d501e03a22;hb=58726a1006aa33303e41951faac1ceca2bf09ec5;hpb=5921e80c5dfc9f96d2f21da6ae58f2b5d3a0b373

diff --git a/filesetup.c b/filesetup.c
index d57a3277..1372177e 100644
--- a/filesetup.c
+++ b/filesetup.c
@@ -68,12 +68,13 @@ static int extend_file(struct thread_data *td, struct fio_file *f)
 		goto err;
 	}
 
+#ifdef FIO_HAVE_FALLOCATE
 	dprint(FD_FILE, "fallocate file %s, size %llu\n", f->file_name,
 							f->real_file_size);
-	if (posix_fallocate(f->fd, 0, f->real_file_size) < 0) {
-		td_verror(td, errno, "posix_fallocate");
-		goto err;
-	}
+	r = posix_fallocate(f->fd, 0, f->real_file_size);
+	if (r < 0)
+		log_err("fio: posix_fallocate fails: %s\n", strerror(-r));
+#endif
 
 	b = malloc(td->o.max_bs[DDIR_WRITE]);
 	memset(b, 0, td->o.max_bs[DDIR_WRITE]);
@@ -118,14 +119,62 @@ err:
 	return 1;
 }
 
+static int pre_read_file(struct thread_data *td, struct fio_file *f)
+{
+	int r, did_open = 0, old_runstate;
+	unsigned long long left;
+	unsigned int bs;
+	char *b;
+
+	if (!(f->flags & FIO_FILE_OPEN)) {
+		if (td->io_ops->open_file(td, f)) {
+			log_err("fio: cannot pre-read, failed to open file\n");
+			return 1;
+		}
+		did_open = 1;
+	}
+
+	old_runstate = td->runstate;
+	td_set_runstate(td, TD_PRE_READING);
+
+	bs = td->o.max_bs[DDIR_READ];
+	b = malloc(bs);
+	memset(b, 0, bs);
+
+	lseek(f->fd, f->file_offset, SEEK_SET);
+	left = f->io_size;
+
+	while (left && !td->terminate) {
+		if (bs > left)
+			bs = left;
+
+		r = read(f->fd, b, bs);
+
+		if (r == (int) bs) {
+			left -= bs;
+			continue;
+		} else {
+			td_verror(td, EIO, "pre_read");
+			break;
+		}
+	}
+
+	td_set_runstate(td, old_runstate);
+
+	if (did_open)
+		td->io_ops->close_file(td, f);
+	free(b);
+	return 0;
+}
+
 static unsigned long long get_rand_file_size(struct thread_data *td)
 {
-	unsigned long long ret, size_d;
+	unsigned long long ret, sized;
 	long r;
 
 	r = os_random_long(&td->file_size_state);
-	size_d = td->o.file_size_high - td->o.file_size_low;
-	ret = (unsigned long long) ((double) size_d * (r / (RAND_MAX + 1.0)));
+	sized = td->o.file_size_high - td->o.file_size_low;
+	ret = (unsigned long long) ((double) sized * (r / (OS_RAND_MAX + 1.0)));
 	ret += td->o.file_size_low;
 	ret -= (ret % td->o.rw_min_bs);
 	return ret;
@@ -135,7 +184,7 @@ static int file_size(struct thread_data *td, struct fio_file *f)
 {
 	struct stat st;
 
-	if (fstat(f->fd, &st) == -1) {
+	if (stat(f->file_name, &st) == -1) {
 		td_verror(td, errno, "fstat");
 		return 1;
 	}
@@ -149,14 +198,28 @@ static int bdev_size(struct thread_data *td, struct fio_file *f)
 	unsigned long long bytes;
 	int r;
 
+	if (td->io_ops->open_file(td, f)) {
+		log_err("fio: failed opening blockdev %s for size check\n",
+			f->file_name);
+		return 1;
+	}
+
 	r = blockdev_size(f->fd, &bytes);
 	if (r) {
 		td_verror(td, r, "blockdev_size");
-		return 1;
+		goto err;
+	}
+
+	if (!bytes) {
+		log_err("%s: zero sized block device?\n", f->file_name);
+		goto err;
 	}
 
 	f->real_file_size = bytes;
 	return 0;
+err:
+	td->io_ops->close_file(td, f);
+	return 1;
 }
 
 static int get_file_size(struct thread_data *td, struct fio_file *f)
@@ -192,8 +255,11 @@ static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f,
 {
 	int ret = 0;
 
-	if (len == -1ULL)
+	if (len == -1ULL) {
 		len = f->io_size;
+		if (len == -1ULL && td->o.fill_device)
+			return 0;
+	}
 	if (off == -1ULL)
 		off = f->file_offset;
 
@@ -308,6 +374,8 @@ int generic_open_file(struct thread_data *td, struct fio_file *f)
 		flags |= O_SYNC;
 	if (f->filetype != FIO_TYPE_FILE)
 		flags |= FIO_O_NOATIME;
+	if (td->o.create_on_open)
+		flags |= O_CREAT;
 
 open_again:
 	if (td_write(td)) {
@@ -347,9 +415,6 @@ open_again:
 		td_verror(td, __e, buf);
 	}
 
-	if (get_file_size(td, f))
-		goto err;
-
 	if (!from_hash && f->fd != -1) {
 		if (add_file_hash(f)) {
 			int ret;
@@ -363,43 +428,11 @@ open_again:
 	}
 
 	return 0;
-err:
-	close(f->fd);
-	return 1;
 }
 
-int open_files(struct thread_data *td)
+int generic_get_file_size(struct thread_data *td, struct fio_file *f)
 {
-	struct fio_file *f;
-	unsigned int i;
-	int err = 0;
-
-	dprint(FD_FILE, "open files\n");
-
-	for_each_file(td, f, i) {
-		err = td_io_open_file(td, f);
-		if (err) {
-			if (td->error == EMFILE) {
-				log_err("fio: limited open files to: %d\n",
-							td->nr_open_files);
-				td->o.open_files = td->nr_open_files;
-				err = 0;
-				clear_error(td);
-			}
-			break;
-		}
-
-		if (td->o.open_files == td->nr_open_files)
-			break;
-	}
-
-	if (!err)
-		return 0;
-
-	for_each_file(td, f, i)
-		td_io_close_file(td, f);
-
-	return err;
+	return get_file_size(td, f);
 }
 
 /*
@@ -415,15 +448,12 @@ static int get_file_sizes(struct thread_data *td)
 		dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i,
 								f->file_name);
 
-		if (td->io_ops->open_file(td, f)) {
+		if (td_io_get_file_size(td, f)) {
 			if (td->error != ENOENT) {
 				log_err("%s\n", td->verror);
 				err = 1;
 			}
 			clear_error(td);
-		} else {
-			if (td->io_ops->close_file)
-				td->io_ops->close_file(td, f);
 		}
 
 		if (f->real_file_size == -1ULL && td->o.size)
@@ -528,8 +558,11 @@ int setup_files(struct thread_data *td)
 		if (f->filetype == FIO_TYPE_FILE &&
 		    (f->io_size + f->file_offset) > f->real_file_size &&
 		    !(td->io_ops->flags & FIO_DISKLESSIO)) {
-			need_extend++;
-			extend_size += (f->io_size + f->file_offset);
+			if (!td->o.create_on_open) {
+				need_extend++;
+				extend_size += (f->io_size + f->file_offset);
+			} else
+				f->real_file_size = f->io_size + f->file_offset;
 			f->flags |= FIO_FILE_EXTEND;
 		}
 	}
@@ -542,8 +575,10 @@ int setup_files(struct thread_data *td)
 	 */
 	if (need_extend) {
 		temp_stall_ts = 1;
-		log_info("%s: Laying out IO file(s) (%u file(s) / %LuMiB)\n",
-			td->o.name, need_extend, extend_size >> 20);
+		if (!terse_output)
+			log_info("%s: Laying out IO file(s) (%u file(s) /"
+				 " %LuMiB)\n", td->o.name, need_extend,
+					extend_size >> 20);
 
 		for_each_file(td, f, i) {
 			unsigned long long old_len, extend_len;
@@ -588,6 +623,20 @@ err_offset:
 	return 1;
 }
 
+int pre_read_files(struct thread_data *td)
+{
+	struct fio_file *f;
+	unsigned int i;
+
+	dprint(FD_FILE, "pre_read files\n");
+
+	for_each_file(td, f, i) {
+		pre_read_file(td, f);
+	}
+
+	return 1;
+}
+
 int init_random_map(struct thread_data *td)
 {
 	unsigned long long blocks, num_maps;
@@ -602,7 +651,7 @@ int init_random_map(struct thread_data *td)
 				(unsigned long long) td->o.rw_min_bs;
 		num_maps = (blocks + BLOCKS_PER_MAP - 1) /
 				(unsigned long long) BLOCKS_PER_MAP;
-		f->file_map = smalloc(num_maps * sizeof(long));
+		f->file_map = smalloc(num_maps * sizeof(int));
 		if (f->file_map) {
 			f->num_maps = num_maps;
 			continue;
@@ -646,6 +695,7 @@ void close_and_free_files(struct thread_data *td)
 		}
 
 		td_io_close_file(td, f);
+		remove_file_hash(f);
 
 		sfree(f->file_name);
 		f->file_name = NULL;
@@ -693,11 +743,21 @@ int add_file(struct thread_data *td, const char *fname)
 	dprint(FD_FILE, "add file %s\n", fname);
 
 	f = smalloc(sizeof(*f));
+	if (!f) {
+		log_err("fio: smalloc OOM\n");
+		assert(0);
+	}
+		
 	f->fd = -1;
 
-	dprint(FD_FILE, "resize file array to %d files\n", cur_files + 1);
+	if (td->files_size <= td->files_index) {
+		int new_size = td->o.nr_files + 1;
+
+		dprint(FD_FILE, "resize file array to %d files\n", new_size);
 
-	td->files = realloc(td->files, (cur_files + 1) * sizeof(f));
+		td->files = realloc(td->files, new_size * sizeof(f));
+		td->files_size = new_size;
+	}
 	td->files[cur_files] = f;
 
 	/*
@@ -711,7 +771,11 @@ int add_file(struct thread_data *td, const char *fname)
 
 	sprintf(file_name + len, "%s", fname);
 	f->file_name = smalloc_strdup(file_name);
-
+	if (!f->file_name) {
+		log_err("fio: smalloc OOM\n");
+		assert(0);
+	}
+	
 	get_file_type(f);
 
 	switch (td->o.file_lock_mode) {
@@ -904,9 +968,20 @@ void dup_files(struct thread_data *td, struct thread_data *org)
 		struct fio_file *__f;
 
 		__f = smalloc(sizeof(*__f));
-
-		if (f->file_name)
+		if (!__f) {
+			log_err("fio: smalloc OOM\n");
+			assert(0);
+		}
+	
+		if (f->file_name) {
 			__f->file_name = smalloc_strdup(f->file_name);
+			if (!__f->file_name) {
+				log_err("fio: smalloc OOM\n");
+				assert(0);
+			}
+	
+			__f->filetype = f->filetype;
+		}
 
 		td->files[i] = __f;
 	}