}
static ranges reserve_new_fs_space(const char *file_path, unsigned block_size,
- u64 size, u64 *bcachefs_inum, dev_t dev)
+ u64 size, u64 *bcachefs_inum, dev_t dev,
+ bool force)
{
- int fd = open(file_path, O_RDWR|O_CREAT|O_EXCL, 0600);
+ int fd = force
+ ? open(file_path, O_RDWR|O_CREAT, 0600)
+ : open(file_path, O_RDWR|O_CREAT|O_EXCL, 0600);
if (fd < 0)
die("Error creating %s for bcachefs metadata: %s",
file_path, strerror(errno));
" -f fs Root of filesystem to migrate(s)\n"
" --encrypted Enable whole filesystem encryption (chacha20/poly1305)\n"
" --no_passphrase Don't encrypt master encryption key\n"
+ " -F Force, even if metadata file already exists\n"
" -h Display this help and exit\n"
"Report bugs to <linux-bcache@vger.kernel.org>");
}
struct format_opts format_opts = format_opts_default();
char *fs_path = NULL;
unsigned block_size;
- bool no_passphrase = false;
+ bool no_passphrase = false, force = false;
int opt;
- while ((opt = getopt_long(argc, argv, "f:h",
+ while ((opt = getopt_long(argc, argv, "f:Fh",
migrate_opts, NULL)) != -1)
switch (opt) {
case 'f':
case 'p':
no_passphrase = true;
break;
+ case 'F':
+ force = true;
+ break;
case 'h':
migrate_usage();
exit(EXIT_SUCCESS);
ranges extents = reserve_new_fs_space(file_path,
block_size, get_size(dev.path, dev.fd) / 5,
- &bcachefs_inum, stat.st_dev);
+ &bcachefs_inum, stat.st_dev, force);
find_superblock_space(extents, &dev);