#include "libbcachefs/opts.h"
#include "tools-util.h"
+int device_usage(void)
+{
+ puts("bcachefs device - manage devices within a running filesystem\n"
+ "Usage: bcachefs device <CMD> [OPTION]\n"
+ "\n"
+ "Commands:\n"
+ " add add a new device to an existing filesystem\n"
+ " remove remove a device from an existing filesystem\n"
+ " online re-add an existing member to a filesystem\n"
+ " offline take a device offline, without removing it\n"
+ " evacuate migrate data off a specific device\n"
+ " set-state mark a device as failed\n"
+ " resize resize filesystem on a device\n"
+ " resize-journal resize journal on a device\n"
+ "\n"
+ "Report bugs to <linux-bcachefs@vger.kernel.org>");
+ return 0;
+}
+
static void device_add_usage(void)
{
puts("bcachefs device add - add a device to an existing filesystem\n"
" -S, --fs_size=size Size of filesystem on device\n"
" -B, --bucket=size Bucket size\n"
" -D, --discard Enable discards\n"
- " -g, --group=group Disk group\n"
+ " -l, --label=label Disk label\n"
" -f, --force Use device even if it appears to already be formatted\n"
" -h, --help Display this help and exit\n"
"\n"
{ "fs_size", required_argument, NULL, 'S' },
{ "bucket", required_argument, NULL, 'B' },
{ "discard", no_argument, NULL, 'D' },
- { "group", required_argument, NULL, 'g' },
+ { "label", required_argument, NULL, 'l' },
{ "force", no_argument, NULL, 'f' },
{ "help", no_argument, NULL, 'h' },
{ NULL }
case 'S':
if (bch2_strtoull_h(optarg, &dev_opts.size))
die("invalid filesystem size");
-
- dev_opts.size >>= 9;
break;
case 'B':
- dev_opts.bucket_size =
- hatoi_validate(optarg, "bucket size");
+ if (bch2_strtoull_h(optarg, &dev_opts.bucket_size))
+ die("bad bucket_size %s", optarg);
break;
case 'D':
dev_opts.discard = true;
break;
- case 'g':
- dev_opts.group = strdup(optarg);
+ case 'l':
+ dev_opts.label = strdup(optarg);
break;
case 'f':
force = true;
if (!fs_path)
die("Please supply a filesystem");
- char *dev_path = arg_pop();
- if (!dev_path)
+ dev_opts.path = arg_pop();
+ if (!dev_opts.path)
die("Please supply a device");
if (argc)
struct bchfs_handle fs = bcache_fs_open(fs_path);
- dev_opts.path = dev_path;
dev_opts.fd = open_for_format(dev_opts.path, force);
struct bch_opt_strs fs_opt_strs;
struct bch_opts fs_opts = bch2_parse_opts(fs_opt_strs);
opt_set(fs_opts, block_size,
- read_file_u64(fs.sysfs_fd, "block_size") >> 9);
+ read_file_u64(fs.sysfs_fd, "options/block_size"));
opt_set(fs_opts, btree_node_size,
- read_file_u64(fs.sysfs_fd, "btree_node_size") >> 9);
+ read_file_u64(fs.sysfs_fd, "options/btree_node_size"));
struct bch_sb *sb = bch2_format(fs_opt_strs,
fs_opts,
u64 nbuckets = size / le16_to_cpu(m->bucket_size);
+ if (nbuckets < le64_to_cpu(m->nbuckets))
+ die("Shrinking not supported yet");
+
printf("resizing %s to %llu buckets\n", dev, nbuckets);
bchu_disk_resize(fs, idx, nbuckets);
} else {
u64 nbuckets = size / le16_to_cpu(resize->mi.bucket_size);
+ if (nbuckets < le64_to_cpu(resize->mi.nbuckets))
+ die("Shrinking not supported yet");
+
printf("resizing %s to %llu buckets\n", dev, nbuckets);
int ret = bch2_dev_resize(c, resize, nbuckets);
if (ret)
static void device_resize_journal_usage(void)
{
puts("bcachefs device resize-journal \n"
- "Usage: bcachefs device resize-journal device [ size ]\n"
+ "Usage: bcachefs device resize-journal device size\n"
"\n"
"Options:\n"
" -h, --help display this help and exit\n"
char *size_arg = arg_pop();
if (!size_arg)
- size = get_size(dev, dev_fd);
+ die("Please supply a journal size");
else if (bch2_strtoull_h(size_arg, &size))
die("invalid size");