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authorDavid Sterba <dsterba@suse.cz>2014-04-23 19:00:22 +0200
committerDavid Sterba <dsterba@suse.cz>2014-12-04 16:48:10 +0100
commitf4e73c060d5de4f809b8cfaeee7491c35ecd3c4b (patch)
treed0d84426ff35b2b799780988f9632553d3973bfb /cmds-device.c
parent84bd55c9cf1770c5cbcfbbe3c91bf13c8d75d0d4 (diff)
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btrfs-progs: move device usage to cmds-device, more cleanups
Move the command definitions where they belong, keep common 'usage' functions in cmds-fi-disk_usage.c and add exports. Rename structures containing 'disk' to 'device'. Fix whitespace in the modified code. Signed-off-by: David Sterba <dsterba@suse.cz>
Diffstat (limited to 'cmds-device.c')
-rw-r--r--cmds-device.c96
1 files changed, 94 insertions, 2 deletions
diff --git a/cmds-device.c b/cmds-device.c
index 5b153f1..2fe33eb 100644
--- a/cmds-device.c
+++ b/cmds-device.c
@@ -450,6 +450,98 @@ out:
return err;
}
+const char * const cmd_device_usage_usage[] = {
+ "btrfs device usage [-b] <path> [<path>..]",
+ "Show which chunks are in a device.",
+ "",
+ "-b\tSet byte as unit",
+ NULL
+};
+
+static int _cmd_device_usage(int fd, char *path, int mode)
+{
+ int i;
+ int ret = 0;
+ int info_count = 0;
+ struct chunk_info *info_ptr = 0;
+ struct device_info *device_info_ptr = 0;
+ int device_info_count = 0;
+
+ if (load_chunk_info(fd, &info_ptr, &info_count) ||
+ load_device_info(fd, &device_info_ptr, &device_info_count)) {
+ ret = -1;
+ goto exit;
+ }
+
+ for (i = 0; i < device_info_count; i++) {
+ printf("%s\t%10s\n", device_info_ptr[i].path,
+ df_pretty_sizes(device_info_ptr[i].size, mode));
+
+ print_device_chunks(fd, device_info_ptr[i].devid,
+ device_info_ptr[i].size,
+ info_ptr, info_count,
+ mode);
+ printf("\n");
+ }
+
+exit:
+ if (device_info_ptr)
+ free(device_info_ptr);
+ if (info_ptr)
+ free(info_ptr);
+
+ return ret;
+}
+
+int cmd_device_usage(int argc, char **argv)
+{
+
+ int flags = DF_HUMAN_UNIT;
+ int i, more_than_one = 0;
+
+ optind = 1;
+ while (1) {
+ char c = getopt(argc, argv, "b");
+
+ if (c < 0)
+ break;
+
+ switch (c) {
+ case 'b':
+ flags &= ~DF_HUMAN_UNIT;
+ break;
+ default:
+ usage(cmd_device_usage_usage);
+ }
+ }
+
+ if (check_argc_min(argc - optind, 1))
+ usage(cmd_device_usage_usage);
+
+ for (i = optind; i < argc ; i++) {
+ int r, fd;
+ DIR *dirstream = NULL;
+ if (more_than_one)
+ printf("\n");
+
+ fd = open_file_or_dir(argv[i], &dirstream);
+ if (fd < 0) {
+ fprintf(stderr, "ERROR: can't access to '%s'\n",
+ argv[1]);
+ return 12;
+ }
+ r = _cmd_device_usage(fd, argv[i], flags);
+ close_file_or_dir(fd, dirstream);
+
+ if (r)
+ return r;
+ more_than_one = 1;
+
+ }
+
+ return 0;
+}
+
const struct cmd_group device_cmd_group = {
device_cmd_group_usage, NULL, {
{ "add", cmd_add_dev, cmd_add_dev_usage, NULL, 0 },
@@ -457,8 +549,8 @@ const struct cmd_group device_cmd_group = {
{ "scan", cmd_scan_dev, cmd_scan_dev_usage, NULL, 0 },
{ "ready", cmd_ready_dev, cmd_ready_dev_usage, NULL, 0 },
{ "stats", cmd_dev_stats, cmd_dev_stats_usage, NULL, 0 },
- { "disk-usage", cmd_device_disk_usage,
- cmd_device_disk_usage_usage, NULL, 0 },
+ { "usage", cmd_device_usage,
+ cmd_device_usage_usage, NULL, 0 },
NULL_CMD_STRUCT
}
};