diff options
| -rw-r--r-- | fs/ceph/mds_client.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index 4fa471d9b3b2..3b534e6522e7 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -232,6 +232,26 @@ static int parse_reply_info_in(void **p, void *end, info->fscrypt_file_len, bad); } } + + /* + * InodeStat encoding versions: + * v1-v7: various fields added over time + * v8: added optmetadata (versioned sub-structure containing + * optional inode metadata like charmap for case-insensitive + * filesystems). The kernel client doesn't support + * case-insensitive lookups, so we skip this field. + * v9: added subvolume_id (parsed below) + */ + if (struct_v >= 8) { + u32 v8_struct_len; + + /* skip optmetadata versioned sub-structure */ + ceph_decode_skip_8(p, end, bad); /* struct_v */ + ceph_decode_skip_8(p, end, bad); /* struct_compat */ + ceph_decode_32_safe(p, end, v8_struct_len, bad); + ceph_decode_skip_n(p, end, v8_struct_len, bad); + } + *p = end; } else { /* legacy (unversioned) struct */ |