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Add --offline to device set-state

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This commit is contained in:
Kent Overstreet 2020-05-08 21:25:25 -04:00
parent f55b90dec9
commit 024a01bf07
1 changed files with 31 additions and 4 deletions
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35
cmd_device.c
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@ -326,6 +326,7 @@ static void device_set_state_usage(void)
"\n"
"Options:\n"
" -f, --force Force, if data redundancy will be degraded\n"
" -o, --offline Set state of an offline device\n"
" -h, --help display this help and exit\n"
"Report bugs to <linux-bcache@vger.kernel.org>");
exit(EXIT_SUCCESS);
@ -335,16 +336,21 @@ int cmd_device_set_state(int argc, char *argv[])
{
static const struct option longopts[] = {
{ "force", 0, NULL, 'f' },
{ "offline", 0, NULL, 'o' },
{ "help", 0, NULL, 'h' },
{ NULL }
};
int opt, flags = 0;
bool offline = false;
while ((opt = getopt_long(argc, argv, "fh", longopts, NULL)) != -1)
while ((opt = getopt_long(argc, argv, "foh", longopts, NULL)) != -1)
switch (opt) {
case 'f':
flags |= BCH_FORCE_IF_DEGRADED;
break;
case 'o':
offline = true;
break;
case 'h':
device_set_state_usage();
}
@ -361,10 +367,31 @@ int cmd_device_set_state(int argc, char *argv[])
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);
if (!offline) {
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);
bcache_fs_close(fs);
} else {
struct bch_opts opts = bch2_opts_empty();
struct bch_sb_handle sb = { NULL };
int ret = bch2_read_super(dev_path, &opts, &sb);
if (ret)
die("error opening %s: %s", dev_path, strerror(-ret));
struct bch_member *m = bch2_sb_get_members(sb.sb)->members + sb.sb->dev_idx;
SET_BCH_MEMBER_STATE(m, new_state);
le64_add_cpu(&sb.sb->seq, 1);
bch2_super_write(sb.bdev->bd_fd, sb.sb);
bch2_free_super(&sb);
}
bchu_disk_set_state(fs, dev_idx, new_state, flags);
return 0;
}