If we leave the client on the confirmed/unconfirmed tables, and leave
the sessions visible on the sessionid_hashtbl, then someone might
find them before we've had a chance to destroy them.
Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
---
fs/nfsd/nfs4state.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 19f7739a156e..55a99ebaf6c9 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -3688,13 +3688,15 @@ nfs4_laundromat(struct nfsd_net *nn)
/* Hey, I'm busy with this guy! */
if (atomic_read(&clp->cl_refcount) != 0)
continue;
- list_move(&clp->cl_lru, &reaplist);
+ unhash_client_locked(clp);
+ list_add(&clp->cl_lru, &reaplist);
}
spin_unlock(&nn->client_lock);
list_for_each_safe(pos, next, &reaplist) {
clp = list_entry(pos, struct nfs4_client, cl_lru);
dprintk("NFSD: purging unused client (clientid %08x)\n",
clp->cl_clientid.cl_id);
+ list_del_init(&clp->cl_lru);
expire_client(clp);
}
spin_lock(&state_lock);
--
1.9.0
--
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