From 8b895ce652dc73bcf42a0c24acfc0708a06ea7c3 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@primarydata.com>
Date: Sun, 5 Jul 2015 15:12:06 -0400
Subject: 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If the server tells us that only some state has been revoked, then we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>
---
fs/nfs/nfs4state.c | 17 +++++++++++++----
1 file changed, 13 insertions(+), 4 deletions(-)
(limited to 'fs/nfs')
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 605840dc89cf..f76916169b5f 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -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)
--
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