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authorTrond Myklebust <trond.myklebust@primarydata.com>2016-09-22 20:38:59 +0300
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2016-09-27 21:33:44 +0300
commit45870d6909d5a1f702d2a3781d8fc831301d13c8 (patch)
tree9343039cc514fcd1b462a0d633292ffb82256c06 /fs/nfs/nfs4_fs.h
parent41020b671aa553f31e766fd1e9d38598eba72bd6 (diff)
downloadlinux-45870d6909d5a1f702d2a3781d8fc831301d13c8.tar.xz
NFSv4.1: Test delegation stateids when server declares "some state revoked"
According to RFC5661, if any of the SEQUENCE status bits SEQ4_STATUS_EXPIRED_ALL_STATE_REVOKED, SEQ4_STATUS_EXPIRED_SOME_STATE_REVOKED, SEQ4_STATUS_ADMIN_STATE_REVOKED, or SEQ4_STATUS_RECALLABLE_STATE_REVOKED are set, then we need to use TEST_STATEID to figure out which stateids have been revoked, so we can acknowledge the loss of state using FREE_STATEID. While we already do this for open and lock state, we have not been doing so for all the delegations. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Tested-by: Oleg Drokin <green@linuxhacker.ru> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs/nfs4_fs.h')
-rw-r--r--fs/nfs/nfs4_fs.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 2d1889de69fb..9b3a82abab07 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -39,6 +39,7 @@ enum nfs4_client_state {
NFS4CLNT_BIND_CONN_TO_SESSION,
NFS4CLNT_MOVED,
NFS4CLNT_LEASE_MOVED,
+ NFS4CLNT_DELEGATION_EXPIRED,
};
#define NFS4_RENEW_TIMEOUT 0x01
@@ -57,6 +58,8 @@ struct nfs4_minor_version_ops {
struct nfs_fsinfo *);
void (*free_lock_state)(struct nfs_server *,
struct nfs4_lock_state *);
+ int (*test_and_free_expired)(struct nfs_server *,
+ nfs4_stateid *, struct rpc_cred *);
struct nfs_seqid *
(*alloc_seqid)(struct nfs_seqid_counter *, gfp_t);
int (*session_trunk)(struct rpc_clnt *, struct rpc_xprt *, void *);