diff options
| author | Scott Mayhew <smayhew@redhat.com> | 2019-09-09 16:10:30 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2019-09-10 09:26:33 -0400 |
| commit | 11a60d159259dbadf9188534b508e5003769af61 (patch) | |
| tree | 21b922564de4770ccdcdb9a197c465a6d14af2ff /include/uapi/linux/nfsd | |
| parent | bbf2f098838aa86cee240a7a11486e0601d56a3f (diff) | |
nfsd: add a "GetVersion" upcall for nfsdcld
Add a "GetVersion" upcall to allow nfsd to determine the maximum upcall
version that the nfsdcld userspace daemon supports. If the daemon
responds with -EOPNOTSUPP, then we know it only supports v1.
Signed-off-by: Scott Mayhew <smayhew@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'include/uapi/linux/nfsd')
| -rw-r--r-- | include/uapi/linux/nfsd/cld.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/uapi/linux/nfsd/cld.h b/include/uapi/linux/nfsd/cld.h index b1e9de4f07d5..c5aad16d10c0 100644 --- a/include/uapi/linux/nfsd/cld.h +++ b/include/uapi/linux/nfsd/cld.h @@ -36,7 +36,8 @@ enum cld_command { Cld_Remove, /* remove record of this cm_id */ Cld_Check, /* is this cm_id allowed? */ Cld_GraceDone, /* grace period is complete */ - Cld_GraceStart, + Cld_GraceStart, /* grace start (upload client records) */ + Cld_GetVersion, /* query max supported upcall version */ }; /* representation of long-form NFSv4 client ID */ @@ -54,7 +55,15 @@ struct cld_msg { union { __s64 cm_gracetime; /* grace period start time */ struct cld_name cm_name; + __u8 cm_version; /* for getting max version */ } __attribute__((packed)) cm_u; } __attribute__((packed)); +struct cld_msg_hdr { + __u8 cm_vers; /* upcall version */ + __u8 cm_cmd; /* upcall command */ + __s16 cm_status; /* return code */ + __u32 cm_xid; /* transaction id */ +} __attribute__((packed)); + #endif /* !_NFSD_CLD_H */ |