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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2016-09-22 19:38:59 +0200 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2016-09-27 20:33:44 +0200 |
| commit | 45870d6909d5a1f702d2a3781d8fc831301d13c8 (patch) | |
| tree | 9343039cc514fcd1b462a0d633292ffb82256c06 /fs/nfs/nfs4state.c | |
| parent | NFSv4.x: Allow callers of nfs_remove_bad_delegation() to specify a stateid (diff) | |
| download | linux-45870d6909d5a1f702d2a3781d8fc831301d13c8.tar.xz linux-45870d6909d5a1f702d2a3781d8fc831301d13c8.zip | |
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TEST_STATEID to figure out which stateids have been revoked, so we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/nfs4state.c')
| -rw-r--r-- | fs/nfs/nfs4state.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 9801b5bb5fac..63da0411e2af 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -1656,15 +1656,9 @@ static void nfs4_state_end_reclaim_reboot(struct nfs_client *clp) put_rpccred(cred); } -static void nfs_delegation_clear_all(struct nfs_client *clp) -{ - nfs_delegation_mark_reclaim(clp); - nfs_delegation_reap_unclaimed(clp); -} - static void nfs4_state_start_reclaim_nograce(struct nfs_client *clp) { - nfs_delegation_clear_all(clp); + nfs_mark_test_expired_all_delegations(clp); nfs4_state_mark_reclaim_helper(clp, nfs4_state_mark_reclaim_nograce); } @@ -2195,7 +2189,7 @@ static void nfs41_handle_all_state_revoked(struct nfs_client *clp) static void nfs41_handle_some_state_revoked(struct nfs_client *clp) { - nfs4_state_mark_reclaim_helper(clp, nfs4_state_mark_reclaim_nograce); + nfs4_state_start_reclaim_nograce(clp); nfs4_schedule_state_manager(clp); dprintk("%s: state revoked on server %s\n", __func__, clp->cl_hostname); @@ -2420,6 +2414,13 @@ static void nfs4_state_manager(struct nfs_client *clp) nfs4_state_end_reclaim_reboot(clp); } + /* Detect expired delegations... */ + if (test_and_clear_bit(NFS4CLNT_DELEGATION_EXPIRED, &clp->cl_state)) { + section = "detect expired delegations"; + nfs_reap_expired_delegations(clp); + continue; + } + /* Now recover expired state... */ if (test_and_clear_bit(NFS4CLNT_RECLAIM_NOGRACE, &clp->cl_state)) { section = "reclaim nograce"; |