#include <sys/types.h>
#include <unistd.h>
+#include "libbcachefs/bcachefs_ioctl.h"
+#include "libbcachefs/super-io.h"
#include "cmds.h"
-#include "libbcache.h"
-#include "linux/bcache-ioctl.h"
+#include "libbcachefs.h"
+#include "libbcachefs/opts.h"
+#include "tools-util.h"
-/* This code belongs under show_fs */
-#if 0
+static void device_add_usage(void)
+{
+ puts("bcachefs device add - add a device to an existing filesystem\n"
+ "Usage: bcachefs device add [OPTION]... filesystem device\n"
+ "\n"
+ "Options:\n"
+ " --fs_size=size Size of filesystem on device\n"
+ " --bucket=size Bucket size\n"
+ " --discard Enable discards\n"
+ " -t, --tier=# Higher tier (e.g. 1) indicates slower devices\n"
+ " -f, --force Use device even if it appears to already be formatted\n"
+ " -h, --help Display this help and exit\n"
+ "\n"
+ "Report bugs to <linux-bcache@vger.kernel.org>");
+}
+
+int cmd_device_add(int argc, char *argv[])
+{
+ static const struct option longopts[] = {
+ { "fs_size", required_argument, NULL, 'S' },
+ { "bucket", required_argument, NULL, 'B' },
+ { "discard", no_argument, NULL, 'D' },
+ { "tier", required_argument, NULL, 't' },
+ { "force", no_argument, NULL, 'f' },
+ { "help", no_argument, NULL, 'h' },
+ { NULL }
+ };
+ struct format_opts format_opts = format_opts_default();
+ struct dev_opts dev_opts = dev_opts_default();
+ bool force = false;
+ int opt;
+
+ while ((opt = getopt_long(argc, argv, "t:fh",
+ longopts, NULL)) != -1)
+ switch (opt) {
+ 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");
+ break;
+ case 'D':
+ dev_opts.discard = true;
+ break;
+ case 't':
+ if (kstrtouint(optarg, 10, &dev_opts.tier) ||
+ dev_opts.tier >= BCH_TIER_MAX)
+ die("invalid tier");
+ break;
+ case 'f':
+ force = true;
+ break;
+ case 'h':
+ device_add_usage();
+ exit(EXIT_SUCCESS);
+ }
+ args_shift(optind);
-struct bcache_dev {
- unsigned nr;
- const char *name;
+ char *fs_path = arg_pop();
+ if (!fs_path)
+ die("Please supply a filesystem");
- unsigned has_metadata;
- unsigned has_data;
- const char *state;
- unsigned tier;
+ char *dev_path = arg_pop();
+ if (!dev_path)
+ die("Please supply a device");
- u64 bucket_size;
- u64 first_bucket;
- u64 nbuckets;
+ if (argc)
+ die("too many arguments");
- /* XXX: dirty != used, it doesn't count metadata */
- u64 bytes_dirty;
-};
+ struct bchfs_handle fs = bcache_fs_open(fs_path);
-static struct bcache_dev fill_dev(const char *dev_name, unsigned nr, int dir)
-{
- return (struct bcache_dev) {
- .nr = nr,
- .name = dev_name,
-
- .has_metadata = read_file_u64(dir, "has_metadata"),
- .has_data = read_file_u64(dir, "has_data"),
- .state = read_file_str(dir, "state"),
- .tier = read_file_u64(dir, "tier"),
-
- .bucket_size = read_file_u64(dir, "bucket_size_bytes"),
- .first_bucket = read_file_u64(dir, "first_bucket"),
- .nbuckets = read_file_u64(dir, "nbuckets"),
- .bytes_dirty = read_file_u64(dir, "dirty_bytes"),
- };
+ dev_opts.path = dev_path;
+ dev_opts.fd = open_for_format(dev_opts.path, force);
+
+ format_opts.block_size =
+ read_file_u64(fs.sysfs_fd, "block_size") >> 9;
+ format_opts.btree_node_size =
+ read_file_u64(fs.sysfs_fd, "btree_node_size") >> 9;
+
+ struct bch_sb *sb = bch2_format(format_opts, &dev_opts, 1);
+ free(sb);
+ fsync(dev_opts.fd);
+ close(dev_opts.fd);
+
+ bchu_disk_add(fs, dev_opts.path);
+ return 0;
}
-static void show_dev(struct bcache_dev *dev)
+static void device_remove_usage(void)
{
- u64 capacity = (dev->nbuckets - dev->first_bucket) *
- dev->bucket_size;
- /*
- * XXX: show fragmentation information, cached/dirty information
- */
-
- printf("Device %u (/dev/%s):\n"
- " Has metadata:\t%u\n"
- " Has dirty data:\t%u\n"
- " State:\t\t%s\n"
- " Tier:\t\t%u\n"
- " Size:\t\t%llu\n"
- " Used:\t\t%llu\n"
- " Free:\t\t%llu\n"
- " Use%%:\t\t%llu\n",
- dev->nr, dev->name,
- dev->has_metadata,
- dev->has_data,
- dev->state,
- dev->tier,
- capacity,
- dev->bytes_dirty,
- capacity - dev->bytes_dirty,
- (dev->bytes_dirty * 100) / capacity);
+ puts("bcachefs device_remove - remove a device from a filesystem\n"
+ "Usage: bcachefs device remove device\n"
+ "\n"
+ "Options:\n"
+ " -f, --force Force removal, even if some data\n"
+ " couldn't be migrated\n"
+ " --force-metadata Force removal, even if some metadata\n"
+ " couldn't be migrated\n"
+ " -h, --help display this help and exit\n"
+ "Report bugs to <linux-bcache@vger.kernel.org>");
+ exit(EXIT_SUCCESS);
}
-int cmd_device_show(int argc, char *argv[])
+int cmd_device_remove(int argc, char *argv[])
{
- int human_readable = 0;
- NihOption opts[] = {
- // { int shortoption, char *longoption, char *help, NihOptionGroup, char *argname, void *value, NihOptionSetter}
-
- { 'h', "human-readable", N_("print sizes in powers of 1024 (e.g., 1023M)"),
- NULL, NULL, &human_readable, NULL},
- NIH_OPTION_LAST
+ static const struct option longopts[] = {
+ { "force", 0, NULL, 'f' },
+ { "force-metadata", 0, NULL, 'F' },
+ { "help", 0, NULL, 'h' },
+ { NULL }
};
- char **args = bch_nih_init(argc, argv, opts);
-
- if (argc != 2)
- die("Please supply a single device");
+ int opt, flags = BCH_FORCE_IF_DEGRADED;
- struct bcache_handle fs = bcache_fs_open(argv[1]);
- struct dirent *entry;
-
- struct bcache_dev devices[256];
- unsigned i, j, nr_devices = 0, nr_active_tiers = 0;
+ while ((opt = getopt_long(argc, argv, "fh", longopts, NULL)) != -1)
+ switch (opt) {
+ case 'f':
+ flags |= BCH_FORCE_IF_DATA_LOST;
+ break;
+ case 'F':
+ flags |= BCH_FORCE_IF_METADATA_LOST;
+ break;
+ case 'h':
+ device_remove_usage();
+ }
+ args_shift(optind);
- unsigned tiers[CACHE_TIERS]; /* number of devices in each tier */
- memset(tiers, 0, sizeof(tiers));
+ char *dev = arg_pop();
+ if (!dev)
+ die("Please supply a device to remove");
- while ((entry = readdir(fs.sysfs))) {
- unsigned nr;
- int pos = 0;
+ if (argc)
+ die("too many arguments");
- sscanf(entry->d_name, "cache%u%n", &nr, &pos);
- if (pos != strlen(entry->d_name))
- continue;
+ unsigned dev_idx;
+ struct bchfs_handle fs = bchu_fs_open_by_dev(dev, &dev_idx);
+ bchu_disk_remove(fs, dev_idx, flags);
+ return 0;
+}
- char link[PATH_MAX];
- if (readlinkat(dirfd(fs.sysfs), entry->d_name,
- link, sizeof(link)) < 0)
- die("readlink error: %s\n", strerror(errno));
+static void device_online_usage(void)
+{
+ puts("bcachefs device online - readd a device to a running filesystem\n"
+ "Usage: bcachefs device online [OPTION]... device\n"
+ "\n"
+ "Options:\n"
+ " -h, --help Display this help and exit\n"
+ "\n"
+ "Report bugs to <linux-bcache@vger.kernel.org>");
+}
- char *dev_name = basename(dirname(link));
+int cmd_device_online(int argc, char *argv[])
+{
+ int opt;
- int fd = openat(dirfd(fs.sysfs), entry->d_name, O_RDONLY);
- if (fd < 0)
- die("couldn't open device %s: %s\n",
- entry->d_name, strerror(errno));
+ while ((opt = getopt(argc, argv, "h")) != -1)
+ switch (opt) {
+ case 'h':
+ device_online_usage();
+ exit(EXIT_SUCCESS);
+ }
+ args_shift(optind);
- devices[nr_devices] = fill_dev(strdup(dev_name), nr, fd);
- tiers[devices[nr_devices].tier]++;
- nr_devices++;
+ char *dev = arg_pop();
+ if (!dev)
+ die("Please supply a device");
- close(fd);
- }
+ if (argc)
+ die("too many arguments");
- for (i = 0; i < CACHE_TIERS; i++)
- if (tiers[i])
- nr_active_tiers++;
+ unsigned dev_idx;
+ struct bchfs_handle fs = bchu_fs_open_by_dev(dev, &dev_idx);
+ bchu_disk_online(fs, dev);
+ return 0;
+}
- /* Print out devices sorted by tier: */
- bool first = true;
+static void device_offline_usage(void)
+{
+ puts("bcachefs device offline - take a device offline, without removing it\n"
+ "Usage: bcachefs device offline [OPTION]... device\n"
+ "\n"
+ "Options:\n"
+ " -f, --force Force, if data redundancy will be degraded\n"
+ " -h, --help Display this help and exit\n"
+ "\n"
+ "Report bugs to <linux-bcache@vger.kernel.org>");
+}
- for (i = 0; i < CACHE_TIERS; i++) {
- if (!tiers[i])
- continue;
+int cmd_device_offline(int argc, char *argv[])
+{
+ static const struct option longopts[] = {
+ { "force", 0, NULL, 'f' },
+ { NULL }
+ };
+ int opt, flags = 0;
- if (nr_active_tiers > 1) {
- if (!first)
- printf("\n");
- first = false;
- printf("Tier %u:\n\n", i);
+ while ((opt = getopt_long(argc, argv, "fh",
+ longopts, NULL)) != -1)
+ switch (opt) {
+ case 'f':
+ flags |= BCH_FORCE_IF_DEGRADED;
+ break;
+ case 'h':
+ device_offline_usage();
+ exit(EXIT_SUCCESS);
}
+ args_shift(optind);
- for (j = 0; j < nr_devices; j++) {
- if (devices[j].tier != i)
- continue;
+ char *dev = arg_pop();
+ if (!dev)
+ die("Please supply a device");
- if (!first)
- printf("\n");
- first = false;
- show_dev(&devices[j]);
- }
- }
+ if (argc)
+ die("too many arguments");
+ unsigned dev_idx;
+ struct bchfs_handle fs = bchu_fs_open_by_dev(dev, &dev_idx);
+ bchu_disk_offline(fs, dev_idx, flags);
return 0;
}
-#endif
-int cmd_device_show(int argc, char *argv[])
+static void device_evacuate_usage(void)
{
- struct cache_sb *sb;
+ puts("bcachefs device evacuate - move data off of a given device\n"
+ "Usage: bcachefs device evacuate [OPTION]... device\n"
+ "\n"
+ "Options:\n"
+ " -h, --help Display this help and exit\n"
+ "\n"
+ "Report bugs to <linux-bcache@vger.kernel.org>");
+}
+
+int cmd_device_evacuate(int argc, char *argv[])
+{
+ int opt;
+
+ while ((opt = getopt(argc, argv, "h")) != -1)
+ switch (opt) {
+ case 'h':
+ device_evacuate_usage();
+ exit(EXIT_SUCCESS);
+ }
+ args_shift(optind);
- if (argc != 2)
- die("please supply a single device");
+ char *dev_path = arg_pop();
+ if (!dev_path)
+ die("Please supply a device");
- sb = bcache_super_read(argv[1]);
- bcache_super_print(sb, HUMAN_READABLE);
+ if (argc)
+ die("too many arguments");
- return 0;
+ unsigned dev_idx;
+ struct bchfs_handle fs = bchu_fs_open_by_dev(dev_path, &dev_idx);
+
+ return bchu_data(fs, (struct bch_ioctl_data) {
+ .op = BCH_DATA_OP_MIGRATE,
+ .start = POS_MIN,
+ .end = POS_MAX,
+ .migrate.dev = dev_idx,
+ });
}
-int cmd_device_add(int argc, char *argv[])
+static void device_set_state_usage(void)
{
- if (argc < 3)
- die("Please supply a filesystem and at least one device to add");
+ puts("bcachefs device set-state\n"
+ "Usage: bcachefs device set-state device new-state\n"
+ "\n"
+ "Options:\n"
+ " -f, --force Force, if data redundancy will be degraded\n"
+ " -h, --help display this help and exit\n"
+ "Report bugs to <linux-bcache@vger.kernel.org>");
+ exit(EXIT_SUCCESS);
+}
+
+int cmd_device_set_state(int argc, char *argv[])
+{
+ static const struct option longopts[] = {
+ { "force", 0, NULL, 'f' },
+ { "help", 0, NULL, 'h' },
+ { NULL }
+ };
+ int opt, flags = 0;
+
+ while ((opt = getopt_long(argc, argv, "fh", longopts, NULL)) != -1)
+ switch (opt) {
+ case 'f':
+ flags |= BCH_FORCE_IF_DEGRADED;
+ break;
+ case 'h':
+ device_set_state_usage();
+ }
+ args_shift(optind);
- struct bcache_handle fs = bcache_fs_open(argv[1]);
+ char *dev_path = arg_pop();
+ if (!dev_path)
+ die("Please supply a device");
- for (unsigned i = 2; i < argc; i++) {
- struct bch_ioctl_disk_add ia = {
- .dev = (__u64) argv[i],
- };
+ char *new_state_str = arg_pop();
+ if (!new_state_str)
+ die("Please supply a device state");
- if (ioctl(fs.ioctl_fd, BCH_IOCTL_DISK_ADD, &ia))
- die("BCH_IOCTL_DISK_ADD error: %s", strerror(errno));
- }
+ unsigned new_state = read_string_list_or_die(new_state_str,
+ bch2_dev_state, "device state");
+
+ unsigned dev_idx;
+ struct bchfs_handle fs = bchu_fs_open_by_dev(dev_path, &dev_idx);
+ bchu_disk_set_state(fs, dev_idx, new_state, flags);
return 0;
}
-static void usage(void)
+static void device_resize_usage(void)
{
- puts("bcache device_remove - remove one or more devices from a filesystem\n"
- "Usage: bcache device_remove filesystem [devices]\n"
+ puts("bcachefs device resize \n"
+ "Usage: bcachefs device resize device [ size ]\n"
"\n"
"Options:\n"
- " -f, --force Force removal, even if some data\n"
- " couldn't be migrated\n"
- " --force-metadata Force removal, even if some metadata\n"
- " couldn't be migrated\n"
" -h, --help display this help and exit\n"
"Report bugs to <linux-bcache@vger.kernel.org>");
exit(EXIT_SUCCESS);
}
-int cmd_device_remove(int argc, char *argv[])
+int cmd_device_resize(int argc, char *argv[])
{
static const struct option longopts[] = {
- { "force", 0, NULL, 'f' },
- { "force-metadata", 0, NULL, 'F' },
- { "help", 0, NULL, 'h' },
+ { "help", 0, NULL, 'h' },
{ NULL }
};
- int opt, force_data = 0, force_metadata = 0;
+ u64 size;
+ int opt;
- while ((opt = getopt_long(argc, argv, "fh", longopts, NULL)) != -1)
+ while ((opt = getopt_long(argc, argv, "h", longopts, NULL)) != -1)
switch (opt) {
- case 'f':
- force_data = 1;
- break;
- case 'F':
- force_metadata = 1;
- break;
case 'h':
- usage();
+ device_resize_usage();
}
+ args_shift(optind);
- if (argc < 3)
- die("Please supply a filesystem and at least one device to add");
+ char *dev = arg_pop();
+ if (!dev)
+ die("Please supply a device to resize");
- struct bcache_handle fs = bcache_fs_open(argv[1]);
+ int dev_fd = xopen(dev, O_RDONLY);
- for (unsigned i = 2; i < argc; i++) {
- struct bch_ioctl_disk_remove ir = {
- .dev = (__u64) argv[i],
- };
+ char *size_arg = arg_pop();
+ if (!size_arg)
+ size = get_size(dev, dev_fd);
+ else if (bch2_strtoull_h(size_arg, &size))
+ die("invalid size");
- if (force_data)
- ir.flags |= BCH_FORCE_IF_DATA_MISSING;
- if (force_metadata)
- ir.flags |= BCH_FORCE_IF_METADATA_MISSING;
+ size >>= 9;
- if (ioctl(fs.ioctl_fd, BCH_IOCTL_DISK_REMOVE, &ir))
- die("BCH_IOCTL_DISK_REMOVE error: %s\n", strerror(errno));
- }
+ if (argc)
+ die("Too many arguments");
+
+ struct stat dev_stat = xfstat(dev_fd);
+
+ char *mount = dev_to_mount(dev);
+ if (mount) {
+ if (!S_ISBLK(dev_stat.st_mode))
+ die("%s is mounted but isn't a block device?!", dev);
+
+ printf("Doing online resize of %s\n", dev);
+
+ struct bchfs_handle fs = bcache_fs_open(mount);
+
+ unsigned idx = bchu_disk_get_idx(fs, dev_stat.st_rdev);
+
+ struct bch_sb *sb = bchu_read_super(fs, -1);
+ if (idx >= sb->nr_devices)
+ die("error reading superblock: dev idx >= sb->nr_devices");
+
+ struct bch_sb_field_members *mi = bch2_sb_get_members(sb);
+ if (!mi)
+ die("error reading superblock: no member info");
+
+ /* could also just read this out of sysfs... meh */
+ struct bch_member *m = mi->members + idx;
+ u64 nbuckets = size / le16_to_cpu(m->bucket_size);
+
+ printf("resizing %s to %llu buckets\n", dev, nbuckets);
+ bchu_disk_resize(fs, idx, nbuckets);
+ } else {
+ printf("Doing offline resize of %s\n", dev);
+
+ struct bch_fs *c = bch2_fs_open(&dev, 1, bch2_opts_empty());
+ if (IS_ERR(c))
+ die("error opening %s: %s", dev, strerror(-PTR_ERR(c)));
+
+ struct bch_dev *ca, *resize = NULL;
+ unsigned i;
+
+ for_each_online_member(ca, c, i) {
+ if (resize)
+ die("confused: more than one online device?");
+ resize = ca;
+ percpu_ref_get(&resize->io_ref);
+ }
+
+ u64 nbuckets = size / le16_to_cpu(resize->mi.bucket_size);
+
+ printf("resizing %s to %llu buckets\n", dev, nbuckets);
+ int ret = bch2_dev_resize(c, resize, nbuckets);
+ if (ret)
+ fprintf(stderr, "resize error: %s\n", strerror(-ret));
+
+ percpu_ref_put(&resize->io_ref);
+ bch2_fs_stop(c);
+ }
return 0;
}
projects / bcachefs-tools-debian / blobdiff