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| author | J. Bruce Fields <bfields@redhat.com> | 2013-04-09 23:02:51 +0200 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2013-04-16 16:59:30 +0200 |
| commit | 3bd64a5ba1719c2bb6cba4493dfd3e23a7653e54 (patch) | |
| tree | c968f3f51d6082d3c7f0a03ec3d9fdaa031e6593 /fs/nfsd/state.h | |
| parent | nfsd4: clean up validate_stateid (diff) | |
| download | linux-3bd64a5ba1719c2bb6cba4493dfd3e23a7653e54.tar.xz linux-3bd64a5ba1719c2bb6cba4493dfd3e23a7653e54.zip | |
nfsd4: implement SEQ4_STATUS_RECALLABLE_STATE_REVOKED
A 4.1 server must notify a client that has had any state revoked using
the SEQ4_STATUS_RECALLABLE_STATE_REVOKED flag. The client can figure
out exactly which state is the problem using CHECK_STATEID and then free
it using FREE_STATEID. The status flag will be unset once all such
revoked stateids are freed.
Our server's only recallable state is delegations. So we keep with each
4.1 client a list of delegations that have timed out and been recalled,
but haven't yet been freed by FREE_STATEID.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/state.h')
| -rw-r--r-- | fs/nfsd/state.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h index 13ec4853e9af..274e2a114e05 100644 --- a/fs/nfsd/state.h +++ b/fs/nfsd/state.h @@ -79,6 +79,8 @@ struct nfs4_stid { #define NFS4_DELEG_STID 4 /* For an open stateid kept around *only* to process close replays: */ #define NFS4_CLOSED_STID 8 +/* For a deleg stateid kept around only to process free_stateid's: */ +#define NFS4_REVOKED_DELEG_STID 16 unsigned char sc_type; stateid_t sc_stateid; struct nfs4_client *sc_client; @@ -238,6 +240,7 @@ struct nfs4_client { struct list_head cl_openowners; struct idr cl_stateids; /* stateid lookup */ struct list_head cl_delegations; + struct list_head cl_revoked; /* unacknowledged, revoked 4.1 state */ struct list_head cl_lru; /* tail queue */ struct xdr_netobj cl_name; /* id generated by client */ nfs4_verifier cl_verifier; /* generated by client */ |