[PATCH 28/30] nfsd41: add test for failed sequence operation

[andros@netapp.com]

From: Andy Adamson <andros@netapp.com>

Failed sequence operations are not cached.

Signed-off-by: Andy Adamson <andros@netapp.com>
---
 include/linux/nfsd/xdr4.h |   10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)

diff --git a/include/linux/nfsd/xdr4.h b/include/linux/nfsd/xdr4.h
index 026d3a5..3dbbbc3 100644
--- a/include/linux/nfsd/xdr4.h
+++ b/include/linux/nfsd/xdr4.h
@@ -460,6 +460,13 @@ struct nfsd4_compoundres {
 	struct nfsd4_compound_state	cstate;
 };
 
+static inline bool nfsd4_is_failed_sequence(struct nfsd4_compoundres *resp)
+{
+	struct nfsd4_compoundargs *args = resp->rqstp->rq_argp;
+	return resp->opcnt == 1 && args->ops[0].opnum == OP_SEQUENCE &&
+		resp->cstate.status;
+}
+
 static inline bool nfsd4_is_solo_sequence(struct nfsd4_compoundres *resp)
 {
 	struct nfsd4_compoundargs *args = resp->rqstp->rq_argp;
@@ -469,7 +476,8 @@ static inline bool nfsd4_is_solo_sequence(struct nfsd4_compoundres *resp)
 static inline bool nfsd4_not_cached(struct nfsd4_compoundres *resp)
 {
 	return !resp->cstate.slot->sl_cachethis ||
-			nfsd4_is_solo_sequence(resp);
+			nfsd4_is_solo_sequence(resp) ||
+			nfsd4_is_failed_sequence(resp);
 }
 
 #define NFS4_SVC_XDRSIZE		sizeof(struct nfsd4_compoundargs)
-- 
1.5.4.3