132     bd->disk = NULL;  in lfs_emubd_create()
135         bd->disk = malloc(sizeof(lfs_emubd_disk_t));  in lfs_emubd_create()
136         if (!bd->disk) {  in lfs_emubd_create()
140         bd->disk->rc = 1;  in lfs_emubd_create()
141         bd->disk->scratch = NULL;  in lfs_emubd_create()
144         bd->disk->fd = open(bd->cfg->disk_path,  in lfs_emubd_create()
147         bd->disk->fd = open(bd->cfg->disk_path,  in lfs_emubd_create()
150         if (bd->disk->fd < 0) {  in lfs_emubd_create()
159             bd->disk->scratch = malloc(bd->cfg->erase_size);  in lfs_emubd_create()
160             if (!bd->disk->scratch) {  in lfs_emubd_create()
164             memset(bd->disk->scratch,  in lfs_emubd_create()
168             // go ahead and erase all of the disk, otherwise the file will not  in lfs_emubd_create()
171                 ssize_t res = write(bd->disk->fd,  in lfs_emubd_create()
172                         bd->disk->scratch,  in lfs_emubd_create()
198     if (bd->disk) {  in lfs_emubd_destroy()
199         bd->disk->rc -= 1;  in lfs_emubd_destroy()
200         if (bd->disk->rc == 0) {  in lfs_emubd_destroy()
201             close(bd->disk->fd);  in lfs_emubd_destroy()
202             free(bd->disk->scratch);  in lfs_emubd_destroy()
203             free(bd->disk);  in lfs_emubd_destroy()
310     // mirror to disk file?  in lfs_emubd_prog()
311     if (bd->disk) {  in lfs_emubd_prog()
312         off_t res1 = lseek(bd->disk->fd,  in lfs_emubd_prog()
321         ssize_t res2 = write(bd->disk->fd, buffer, size);  in lfs_emubd_prog()
393         // mirror to disk file?  in lfs_emubd_erase()
394         if (bd->disk) {  in lfs_emubd_erase()
395             off_t res1 = lseek(bd->disk->fd,  in lfs_emubd_erase()
404             ssize_t res2 = write(bd->disk->fd,  in lfs_emubd_erase()
405                     bd->disk->scratch,  in lfs_emubd_erase()
636     copy->disk = bd->disk;  in lfs_emubd_copy()
637     if (copy->disk) {  in lfs_emubd_copy()
638         copy->disk->rc += 1;  in lfs_emubd_copy()