static dev_t fs_get_disk(struct libmnt_fs *fs, int check)
{
struct fsck_fs_data *data;
const char *device;
struct stat st;
data = mnt_fs_get_userdata(fs);
if (data && data->disk)
return data->disk;
if (!check)
return 0;
if (mnt_fs_is_netfs(fs) || mnt_fs_is_pseudofs(fs))
return 0;
device = fs_get_device(fs);
if (!device)
return 0;
data = fs_create_data(fs);
if (!stat(device, &st) &&
!blkid_devno_to_wholedisk(st.st_rdev, NULL, 0, &data->disk)) {
if (data->disk)
data->stacked = count_slaves(data->disk) > 0 ? 1 : 0;
return data->disk;
}
return 0;
}
static struct fsck_fs_data *fs_create_data(struct libmnt_fs *fs)
{
struct fsck_fs_data *data = mnt_fs_get_userdata(fs);
if (!data) {
data = xcalloc(1, sizeof(*data));
mnt_fs_set_userdata(fs, data);
}
return data;
}
/*
* fs from fstab might contains real device name as well as symlink,
* LABEL or UUID, this function returns canonicalized result.
*/
static const char *fs_get_device(struct libmnt_fs *fs)
{
struct fsck_fs_data *data = mnt_fs_get_userdata(fs);
if (!data || !data->eval_device) {
const char *spec = mnt_fs_get_source(fs);
if (!data)
data = fs_create_data(fs);
data->eval_device = 1;
data->device = mnt_resolve_spec(spec, mnt_table_get_cache(fstab));
if (!data->device)
data->device = xstrdup(spec);
}
return data->device;
}
static int fs_is_done(struct libmnt_fs *fs)
{
struct fsck_fs_data *data = mnt_fs_get_userdata(fs);
return data ? data->done : 0;
}
static int fs_is_stacked(struct libmnt_fs *fs)
{
struct fsck_fs_data *data = mnt_fs_get_userdata(fs);
return data ? data->stacked : 0;
}