NFSv4: Replace closed stateids with the "invalid special stateid"
When decoding a CLOSE, replace the stateid returned by the server
with the "invalid special stateid" described in RFC5661, Section 8.2.3.
In nfs_set_open_stateid_locked, ignore stateids from closed state.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 14ed979..77c6729 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -4385,6 +4385,14 @@
return decode_stateid(xdr, stateid);
}
+static int decode_invalid_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
+{
+ nfs4_stateid dummy;
+
+ nfs4_stateid_copy(stateid, &invalid_stateid);
+ return decode_stateid(xdr, &dummy);
+}
+
static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
{
int status;
@@ -4393,7 +4401,7 @@
if (status != -EIO)
nfs_increment_open_seqid(status, res->seqid);
if (!status)
- status = decode_open_stateid(xdr, &res->stateid);
+ status = decode_invalid_stateid(xdr, &res->stateid);
return status;
}
@@ -6108,6 +6116,8 @@
res->lrs_present = be32_to_cpup(p);
if (res->lrs_present)
status = decode_layout_stateid(xdr, &res->stateid);
+ else
+ nfs4_stateid_copy(&res->stateid, &invalid_stateid);
return status;
out_overflow:
print_overflow_msg(__func__, xdr);