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Add format options for --no-initialize and specifying the metadata version

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These are only to be used for tests.
This commit is contained in:
Kent Overstreet 2021-03-21 16:12:26 -04:00
parent 8a69e01aeb
commit d3dc47271b
3 changed files with 18 additions and 5 deletions
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17
cmd_format.c
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@ -41,6 +41,8 @@ x('g', group, required_argument) \
x(0, discard, no_argument) \
x(0, data_allowed, required_argument) \
x(0, durability, required_argument) \
x(0, version, required_argument) \
x(0, no_initialize, no_argument) \
x('f', force, no_argument) \
x('q', quiet, no_argument) \
x('h', help, no_argument)
@ -112,7 +114,7 @@ int cmd_format(int argc, char *argv[])
darray(char *) device_paths;
struct format_opts opts = format_opts_default();
struct dev_opts dev_opts = dev_opts_default(), *dev;
bool force = false, no_passphrase = false, quiet = false;
bool force = false, no_passphrase = false, quiet = false, initialize = true;
unsigned v;
int opt;
@ -183,6 +185,13 @@ int cmd_format(int argc, char *argv[])
dev_opts.durability > BCH_REPLICAS_MAX)
die("invalid durability");
break;
case O_version:
if (kstrtouint(optarg, 10, &opts.version))
die("invalid version");
break;
case O_no_initialize:
initialize = false;
break;
case O_no_opt:
darray_append(device_paths, optarg);
dev_opts.path = optarg;
@ -206,8 +215,10 @@ int cmd_format(int argc, char *argv[])
if (darray_empty(devices))
die("Please supply a device");
if (opts.encrypted && !no_passphrase)
if (opts.encrypted && !no_passphrase) {
opts.passphrase = read_passphrase_twice("Enter passphrase: ");
initialize = false;
}
darray_foreach(dev, devices)
dev->fd = open_for_format(dev->path, force);
@ -229,7 +240,7 @@ int cmd_format(int argc, char *argv[])
darray_free(devices);
if (!opts.passphrase) {
if (initialize) {
/*
* Start the filesystem once, to allocate the journal and create
* the root directory:

4
libbcachefs.c
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@ -202,8 +202,8 @@ struct bch_sb *bch2_format(struct bch_opt_strs fs_opt_strs,
if (bch2_sb_realloc(&sb, 0))
die("insufficient memory");
sb.sb->version = le16_to_cpu(bcachefs_metadata_version_current);
sb.sb->version_min = le16_to_cpu(bcachefs_metadata_version_current);
sb.sb->version = le16_to_cpu(opts.version);
sb.sb->version_min = le16_to_cpu(opts.version);
sb.sb->magic = BCACHE_MAGIC;
sb.sb->block_size = cpu_to_le16(fs_opts.block_size);
sb.sb->user_uuid = opts.uuid;

2
libbcachefs.h
View File

@ -30,6 +30,7 @@ void bch2_opts_usage(unsigned);
struct format_opts {
char *label;
uuid_le uuid;
unsigned version;
unsigned encoded_extent_max;
@ -40,6 +41,7 @@ struct format_opts {
static inline struct format_opts format_opts_default()
{
return (struct format_opts) {
.version = bcachefs_metadata_version_current,
.encoded_extent_max = 128,
};
}