btrfs-progs: alias btrfs device delete to btrfs device remove
[platform/upstream/btrfs-progs.git] / cmds-filesystem.c
index b93bb33..800aa4d 100644 (file)
@@ -375,7 +375,7 @@ static void splice_device_list(struct list_head *seed_devices,
 }
 
 static void print_devices(struct btrfs_fs_devices *fs_devices,
-                         u64 *devs_found)
+                         u64 *devs_found, unsigned unit_mode)
 {
        struct btrfs_device *device;
        struct btrfs_fs_devices *cur_fs;
@@ -393,14 +393,16 @@ static void print_devices(struct btrfs_fs_devices *fs_devices,
        list_for_each_entry(device, all_devices, dev_list) {
                printf("\tdevid %4llu size %s used %s path %s\n",
                       (unsigned long long)device->devid,
-                      pretty_size(device->total_bytes),
-                      pretty_size(device->bytes_used), device->name);
+                      pretty_size_mode(device->total_bytes, unit_mode),
+                      pretty_size_mode(device->bytes_used, unit_mode),
+                      device->name);
 
                (*devs_found)++;
        }
 }
 
-static void print_one_uuid(struct btrfs_fs_devices *fs_devices)
+static void print_one_uuid(struct btrfs_fs_devices *fs_devices,
+                          unsigned unit_mode)
 {
        char uuidbuf[BTRFS_UUID_UNPARSED_SIZE];
        struct btrfs_device *device;
@@ -421,9 +423,9 @@ static void print_one_uuid(struct btrfs_fs_devices *fs_devices)
        total = device->total_devs;
        printf(" uuid: %s\n\tTotal devices %llu FS bytes used %s\n", uuidbuf,
               (unsigned long long)total,
-              pretty_size(device->super_bytes_used));
+              pretty_size_mode(device->super_bytes_used, unit_mode));
 
-       print_devices(fs_devices, &devs_found);
+       print_devices(fs_devices, &devs_found, unit_mode);
 
        if (devs_found < total) {
                printf("\t*** Some devices missing\n");
@@ -445,7 +447,7 @@ static u64 calc_used_bytes(struct btrfs_ioctl_space_args *si)
 static int print_one_fs(struct btrfs_ioctl_fs_info_args *fs_info,
                struct btrfs_ioctl_dev_info_args *dev_info,
                struct btrfs_ioctl_space_args *space_info,
-               char *label, char *path)
+               char *label, char *path, unsigned unit_mode)
 {
        int i;
        int fd;
@@ -468,7 +470,8 @@ static int print_one_fs(struct btrfs_ioctl_fs_info_args *fs_info,
 
        printf(" uuid: %s\n\tTotal devices %llu FS bytes used %s\n", uuidbuf,
                        fs_info->num_devices,
-                       pretty_size(calc_used_bytes(space_info)));
+                       pretty_size_mode(calc_used_bytes(space_info),
+                                        unit_mode));
 
        for (i = 0; i < fs_info->num_devices; i++) {
                char *canonical_path;
@@ -485,8 +488,8 @@ static int print_one_fs(struct btrfs_ioctl_fs_info_args *fs_info,
                canonical_path = canonicalize_path((char *)tmp_dev_info->path);
                printf("\tdevid %4llu size %s used %s path %s\n",
                        tmp_dev_info->devid,
-                       pretty_size(tmp_dev_info->total_bytes),
-                       pretty_size(tmp_dev_info->bytes_used),
+                       pretty_size_mode(tmp_dev_info->total_bytes, unit_mode),
+                       pretty_size_mode(tmp_dev_info->bytes_used, unit_mode),
                        canonical_path);
 
                free(canonical_path);
@@ -498,7 +501,7 @@ static int print_one_fs(struct btrfs_ioctl_fs_info_args *fs_info,
        return 0;
 }
 
-static int btrfs_scan_kernel(void *search)
+static int btrfs_scan_kernel(void *search, unsigned unit_mode)
 {
        int ret = 0, fd;
        int found = 0;
@@ -537,7 +540,8 @@ static int btrfs_scan_kernel(void *search)
                fd = open(mnt->mnt_dir, O_RDONLY);
                if ((fd != -1) && !get_df(fd, &space_info_arg)) {
                        print_one_fs(&fs_info_arg, dev_info_arg,
-                                       space_info_arg, label, mnt->mnt_dir);
+                                    space_info_arg, label, mnt->mnt_dir,
+                                    unit_mode);
                        kfree(space_info_arg);
                        memset(label, 0, sizeof(label));
                        found = 1;
@@ -816,6 +820,14 @@ static const char * const cmd_show_usage[] = {
        "Show the structure of a filesystem",
        "-d|--all-devices   show only disks under /dev containing btrfs filesystem",
        "-m|--mounted       show only mounted btrfs",
+       "--raw              raw numbers in bytes",
+       "--human-readable   human friendly numbers, base 1024 (default)",
+       "--iec              use 1024 as a base (KiB, MiB, GiB, TiB)",
+       "--si               use 1000 as a base (kB, MB, GB, TB)",
+       "--kbytes           show sizes in KiB, or kB with --si",
+       "--mbytes           show sizes in MiB, or MB with --si",
+       "--gbytes           show sizes in GiB, or GB with --si",
+       "--tbytes           show sizes in TiB, or TB with --si",
        "If no argument is given, structure of all present filesystems is shown.",
        NULL
 };
@@ -829,10 +841,11 @@ static int cmd_show(int argc, char **argv)
        /* default, search both kernel and udev */
        int where = -1;
        int type = 0;
-       char mp[BTRFS_PATH_NAME_MAX + 1];
+       char mp[PATH_MAX];
        char path[PATH_MAX];
        __u8 fsid[BTRFS_FSID_SIZE];
        char uuid_buf[BTRFS_UUID_UNPARSED_SIZE];
+       unsigned unit_mode = UNITS_DEFAULT;
        int found = 0;
 
        while (1) {
@@ -840,6 +853,15 @@ static int cmd_show(int argc, char **argv)
                static const struct option long_options[] = {
                        { "all-devices", no_argument, NULL, 'd'},
                        { "mounted", no_argument, NULL, 'm'},
+                       { "raw", no_argument, NULL, GETOPT_VAL_RAW},
+                       { "kbytes", no_argument, NULL, GETOPT_VAL_KBYTES},
+                       { "mbytes", no_argument, NULL, GETOPT_VAL_MBYTES},
+                       { "gbytes", no_argument, NULL, GETOPT_VAL_GBYTES},
+                       { "tbytes", no_argument, NULL, GETOPT_VAL_TBYTES},
+                       { "si", no_argument, NULL, GETOPT_VAL_SI},
+                       { "iec", no_argument, NULL, GETOPT_VAL_IEC},
+                       { "human-readable", no_argument, NULL,
+                               GETOPT_VAL_HUMAN_READABLE},
                        { NULL, 0, NULL, 0 }
                };
 
@@ -853,6 +875,30 @@ static int cmd_show(int argc, char **argv)
                case 'm':
                        where = BTRFS_SCAN_MOUNTED;
                        break;
+               case GETOPT_VAL_RAW:
+                       units_set_mode(&unit_mode, UNITS_RAW);
+                       break;
+               case GETOPT_VAL_KBYTES:
+                       units_set_base(&unit_mode, UNITS_KBYTES);
+                       break;
+               case GETOPT_VAL_MBYTES:
+                       units_set_base(&unit_mode, UNITS_MBYTES);
+                       break;
+               case GETOPT_VAL_GBYTES:
+                       units_set_base(&unit_mode, UNITS_GBYTES);
+                       break;
+               case GETOPT_VAL_TBYTES:
+                       units_set_base(&unit_mode, UNITS_TBYTES);
+                       break;
+               case GETOPT_VAL_SI:
+                       units_set_mode(&unit_mode, UNITS_DECIMAL);
+                       break;
+               case GETOPT_VAL_IEC:
+                       units_set_mode(&unit_mode, UNITS_BINARY);
+                       break;
+               case GETOPT_VAL_HUMAN_READABLE:
+                       units_set_mode(&unit_mode, UNITS_HUMAN_BINARY);
+                       break;
                default:
                        usage(cmd_show_usage);
                }
@@ -908,7 +954,7 @@ static int cmd_show(int argc, char **argv)
                goto devs_only;
 
        /* show mounted btrfs */
-       ret = btrfs_scan_kernel(search);
+       ret = btrfs_scan_kernel(search, unit_mode);
        if (search && !ret) {
                /* since search is found we are done */
                goto out;
@@ -945,7 +991,7 @@ devs_only:
        }
 
        list_for_each_entry(fs_devices, &all_uuids, list)
-               print_one_uuid(fs_devices);
+               print_one_uuid(fs_devices, unit_mode);
 
        if (search && !found)
                ret = 1;
@@ -1019,7 +1065,7 @@ static const char * const cmd_defrag_usage[] = {
        "-f             flush data to disk immediately after defragmenting",
        "-s start       defragment only from byte onward",
        "-l len         defragment only up to len bytes",
-       "-t size        minimal size of file to be considered for defragmenting",
+       "-t size        target extent size hint",
        NULL
 };
 
@@ -1081,7 +1127,7 @@ static int cmd_defrag(int argc, char **argv)
        int flush = 0;
        u64 start = 0;
        u64 len = (u64)-1;
-       u32 thresh = 0;
+       u64 thresh = 0;
        int i;
        int recursive = 0;
        int ret = 0;
@@ -1124,6 +1170,11 @@ static int cmd_defrag(int argc, char **argv)
                        break;
                case 't':
                        thresh = parse_size(optarg);
+                       if (thresh > (u32)-1) {
+                               fprintf(stderr,
+                       "WARNING: target extent size %llu too big, trimmed to %u",
+                                       thresh, (u32)-1);
+                       }
                        defrag_global_fancy_ioctl = 1;
                        break;
                case 'r':
@@ -1140,7 +1191,7 @@ static int cmd_defrag(int argc, char **argv)
        memset(&defrag_global_range, 0, sizeof(range));
        defrag_global_range.start = start;
        defrag_global_range.len = len;
-       defrag_global_range.extent_thresh = thresh;
+       defrag_global_range.extent_thresh = (u32)thresh;
        if (compress_type) {
                defrag_global_range.flags |= BTRFS_DEFRAG_RANGE_COMPRESS;
                defrag_global_range.compress_type = compress_type;
@@ -1270,6 +1321,7 @@ static int cmd_resize(int argc, char **argv)
        }
 
        printf("Resize '%s' of '%s'\n", path, amount);
+       memset(&args, 0, sizeof(args));
        strncpy_null(args.name, amount);
        res = ioctl(fd, BTRFS_IOC_RESIZE, &args);
        e = errno;
@@ -1321,13 +1373,16 @@ static int cmd_label(int argc, char **argv)
        }
 }
 
+static const char filesystem_cmd_group_info[] =
+"overall filesystem tasks and information";
+
 const struct cmd_group filesystem_cmd_group = {
-       filesystem_cmd_group_usage, NULL, {
+       filesystem_cmd_group_usage, filesystem_cmd_group_info, {
                { "df", cmd_filesystem_df, cmd_filesystem_df_usage, NULL, 0 },
                { "show", cmd_show, cmd_show_usage, NULL, 0 },
                { "sync", cmd_sync, cmd_sync_usage, NULL, 0 },
                { "defragment", cmd_defrag, cmd_defrag_usage, NULL, 0 },
-               { "balance", cmd_balance, NULL, &balance_cmd_group, 1 },
+               { "balance", cmd_balance, NULL, &balance_cmd_group, CMD_HIDDEN },
                { "resize", cmd_resize, cmd_resize_usage, NULL, 0 },
                { "label", cmd_label, cmd_label_usage, NULL, 0 },
                { "usage", cmd_filesystem_usage,