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authorTrond Myklebust <trond.myklebust@primarydata.com>2016-09-22 13:38:59 -0400
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2016-09-27 14:33:44 -0400
commit45870d6909d5a1f702d2a3781d8fc831301d13c8 (patch)
tree9343039cc514fcd1b462a0d633292ffb82256c06 /fs/nfs/delegation.h
parent41020b671aa553f31e766fd1e9d38598eba72bd6 (diff)
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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or SEQ4_STATUS_RECALLABLE_STATE_REVOKED are set, then we need to use TEST_STATEID to figure out which stateids have been revoked, so we can acknowledge the loss of state using FREE_STATEID.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/delegation.h')
-rw-r--r--fs/nfs/delegation.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/nfs/delegation.h b/fs/nfs/delegation.h
index d40827af5913..1442e3b1521d 100644
--- a/fs/nfs/delegation.h
+++ b/fs/nfs/delegation.h
@@ -32,6 +32,7 @@ enum {
NFS_DELEGATION_REFERENCED,
NFS_DELEGATION_RETURNING,
NFS_DELEGATION_REVOKED,
+ NFS_DELEGATION_TEST_EXPIRED,
};
int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res);
@@ -52,6 +53,9 @@ void nfs_remove_bad_delegation(struct inode *inode, const nfs4_stateid *stateid)
void nfs_delegation_mark_reclaim(struct nfs_client *clp);
void nfs_delegation_reap_unclaimed(struct nfs_client *clp);
+void nfs_mark_test_expired_all_delegations(struct nfs_client *clp);
+void nfs_reap_expired_delegations(struct nfs_client *clp);
+
/* NFSv4 delegation-related procedures */
int nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4_stateid *stateid, int issync);
int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid, fmode_t type);