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NFSv4.1: Handle SEQ4_STATUS_EXPIRED_SOME_STATE_REVOKED status bit correctly. 

If the server tells us that only some state has been revoked, then we
need to run the full TEST_STATEID dog and pony show in order to discover
which locks and delegations are still OK. Currently we blow away all
state, which means that we lose all locks!

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust 2015-07-05 15:12:06 -04:00
parent b5872f0c67
commit 8b895ce652
1 changed files with 13 additions and 4 deletions
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17
fs/nfs/nfs4state.c
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@ -2191,12 +2191,20 @@ static void nfs41_handle_server_reboot(struct nfs_client *clp)
}
}
static void nfs41_handle_state_revoked(struct nfs_client *clp)
static void nfs41_handle_all_state_revoked(struct nfs_client *clp)
{
nfs4_reset_all_state(clp);
dprintk("%s: state revoked on server %s\n", __func__, clp->cl_hostname);
}
static void nfs41_handle_some_state_revoked(struct nfs_client *clp)
{
nfs4_state_mark_reclaim_helper(clp, nfs4_state_mark_reclaim_nograce);
nfs4_schedule_state_manager(clp);
dprintk("%s: state revoked on server %s\n", __func__, clp->cl_hostname);
}
static void nfs41_handle_recallable_state_revoked(struct nfs_client *clp)
{
/* This will need to handle layouts too */
@ -2231,10 +2239,11 @@ void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags)
if (flags & SEQ4_STATUS_RESTART_RECLAIM_NEEDED)
nfs41_handle_server_reboot(clp);
if (flags & (SEQ4_STATUS_EXPIRED_ALL_STATE_REVOKED |
SEQ4_STATUS_EXPIRED_SOME_STATE_REVOKED |
if (flags & (SEQ4_STATUS_EXPIRED_ALL_STATE_REVOKED))
nfs41_handle_all_state_revoked(clp);
if (flags & (SEQ4_STATUS_EXPIRED_SOME_STATE_REVOKED |
SEQ4_STATUS_ADMIN_STATE_REVOKED))
nfs41_handle_state_revoked(clp);
nfs41_handle_some_state_revoked(clp);
if (flags & SEQ4_STATUS_LEASE_MOVED)
nfs4_schedule_lease_moved_recovery(clp);
if (flags & SEQ4_STATUS_RECALLABLE_STATE_REVOKED)