X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=filesetup.c;h=799202f0da5bbccf9b7aca0e90fc7f7ed5293004;hp=5b96c66fa739d0af845fab987452d957542175cc;hb=d06093e70ee89e8440431b78846fa3815a9cb89d;hpb=03e20d687566753b90383571e5e152c5142bdffd

diff --git a/filesetup.c b/filesetup.c
index 5b96c66f..799202f0 100644
--- a/filesetup.c
+++ b/filesetup.c
@@ -11,6 +11,7 @@
 #include "fio.h"
 #include "smalloc.h"
 #include "filehash.h"
+#include "os/os.h"
 
 static int root_warn;
 
@@ -77,7 +78,7 @@ static int extend_file(struct thread_data *td, struct fio_file *f)
 		}
 	}
 #endif
-	
+
 	if (!new_layout)
 		goto done;
 
@@ -207,11 +208,18 @@ static int pre_read_file(struct thread_data *td, struct fio_file *f)
 static unsigned long long get_rand_file_size(struct thread_data *td)
 {
 	unsigned long long ret, sized;
-	long r;
+	unsigned long r;
+
+	if (td->o.use_os_rand) {
+		r = os_random_long(&td->file_size_state);
+		sized = td->o.file_size_high - td->o.file_size_low;
+		ret = (unsigned long long) ((double) sized * (r / (OS_RAND_MAX + 1.0)));
+	} else {
+		r = __rand(&td->__file_size_state);
+		sized = td->o.file_size_high - td->o.file_size_low;
+		ret = (unsigned long long) ((double) sized * (r / (FRAND_MAX + 1.0)));
+	}
 
-	r = os_random_long(&td->file_size_state);
-	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;
@@ -232,7 +240,7 @@ static int file_size(struct thread_data *td, struct fio_file *f)
 
 static int bdev_size(struct thread_data *td, struct fio_file *f)
 {
-	unsigned long long bytes;
+	unsigned long long bytes = 0;
 	int r;
 
 	if (td->io_ops->open_file(td, f)) {
@@ -241,7 +249,7 @@ static int bdev_size(struct thread_data *td, struct fio_file *f)
 		return 1;
 	}
 
-	r = blockdev_size(f->fd, &bytes);
+	r = blockdev_size(f, &bytes);
 	if (r) {
 		td_verror(td, r, "blockdev_size");
 		printf("fd is %d\n", f->fd);
@@ -264,7 +272,7 @@ err:
 static int char_size(struct thread_data *td, struct fio_file *f)
 {
 #ifdef FIO_HAVE_CHARDEV_SIZE
-	unsigned long long bytes;
+	unsigned long long bytes = 0;
 	int r;
 
 	if (td->io_ops->open_file(td, f)) {
@@ -273,7 +281,7 @@ static int char_size(struct thread_data *td, struct fio_file *f)
 		return 1;
 	}
 
-	r = chardev_size(f->fd, &bytes);
+	r = chardev_size(f, &bytes);
 	if (r) {
 		td_verror(td, r, "chardev_size");
 		goto err;
@@ -351,9 +359,9 @@ static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f,
 		(void) posix_madvise(f->mmap_ptr, f->mmap_sz, FIO_MADV_FREE);
 #endif
 	} else if (f->filetype == FIO_TYPE_FILE) {
-		ret = fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
+		ret = posix_fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
 	} else if (f->filetype == FIO_TYPE_BD) {
-		ret = blockdev_invalidate_cache(f->fd);
+		ret = blockdev_invalidate_cache(f);
 		if (ret < 0 && errno == EACCES && geteuid()) {
 			if (!root_warn) {
 				log_err("fio: only root may flush block "
@@ -496,7 +504,7 @@ open_again:
 
 	if (!from_hash && f->fd != -1) {
 		if (add_file_hash(f)) {
-			int ret;
+			int fio_unused ret;
 
 			/*
 			 * OK to ignore, we haven't done anything with it
@@ -811,7 +819,7 @@ 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(int));
+		f->file_map = smalloc(num_maps * sizeof(unsigned long));
 		if (f->file_map) {
 			f->num_maps = num_maps;
 			continue;
@@ -885,7 +893,9 @@ static void get_file_type(struct fio_file *f)
 		f->filetype = FIO_TYPE_FILE;
 
 	if (!stat(f->file_name, &sb)) {
-		if (S_ISBLK(sb.st_mode))
+		/* \\.\ is the device namespace in Windows, where every file is
+		 * a block device */
+		if (S_ISBLK(sb.st_mode) || strncmp(f->file_name, "\\\\.\\", 4) == 0)
 			f->filetype = FIO_TYPE_BD;
 		else if (S_ISCHR(sb.st_mode))
 			f->filetype = FIO_TYPE_CHAR;