diff options
| author | Olga Kornievskaia <kolga@netapp.com> | 2018-07-09 15:13:30 -0400 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2018-08-09 12:56:38 -0400 |
| commit | 67aa7444c4beb40aafedd8d2c60bbcc54987adda (patch) | |
| tree | e3306c3b336934f335295adb810141a9a5087b09 /fs/nfs/nfs42xdr.c | |
| parent | cb95deea0b4aa5c7c7423f4e075a3ddcd59e710b (diff) | |
| download | linux-67aa7444c4beb40aafedd8d2c60bbcc54987adda.tar.bz2 | |
NFS COPY xdr handle async reply
If server returns async reply, it must include a callback stateid,
wr_callback_id in the write_response4.
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs/nfs42xdr.c')
| -rw-r--r-- | fs/nfs/nfs42xdr.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/fs/nfs/nfs42xdr.c b/fs/nfs/nfs42xdr.c index 09a540d035b8..205c3567ea08 100644 --- a/fs/nfs/nfs42xdr.c +++ b/fs/nfs/nfs42xdr.c @@ -389,21 +389,23 @@ static int decode_write_response(struct xdr_stream *xdr, struct nfs42_write_res *res) { __be32 *p; + int status, count; - p = xdr_inline_decode(xdr, 4 + 8 + 4); + p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) goto out_overflow; - - /* - * We never use asynchronous mode, so warn if a server returns - * a stateid. - */ - if (unlikely(*p != 0)) { - pr_err_once("%s: server has set unrequested " - "asynchronous mode\n", __func__); + count = be32_to_cpup(p); + if (count > 1) return -EREMOTEIO; + else if (count == 1) { + status = decode_opaque_fixed(xdr, &res->stateid, + NFS4_STATEID_SIZE); + if (unlikely(status)) + goto out_overflow; } - p++; + p = xdr_inline_decode(xdr, 8 + 4); + if (unlikely(!p)) + goto out_overflow; p = xdr_decode_hyper(p, &res->count); res->verifier.committed = be32_to_cpup(p); return decode_verifier(xdr, &res->verifier.verifier); |