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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/nfs4state.c
parent41020b671aa553f31e766fd1e9d38598eba72bd6 (diff)
downloadlinux-45870d6909d5a1f702d2a3781d8fc831301d13c8.tar.bz2
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or SEQ4_STATUS_RECALLABLE_STATE_REVOKED are set, then we need to use TEST_STATEID to figure out which stateids have been revoked, so we can acknowledge the loss of state using FREE_STATEID.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.c17
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";