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authorTom Talpey <tmtalpey@gmail.com>2009-03-11 14:37:55 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2009-03-11 14:37:55 -0400
commitb1e1e158779f1d99c2cc18e466f6bf9099fc0853 (patch)
tree6f73394f824f6234e8da245f4633ed8323293919 /net/sunrpc
parente1ebfd33be068ec933f8954060a499bd22ad6f69 (diff)
SVCRDMA: remove faulty assertions in rpc/rdma chunk validation.
Certain client-provided RPCRDMA chunk alignments result in an additional scatter/gather entry, which triggered nfs/rdma server assertions incorrectly. OpenSolaris nfs/rdma client connectathon testing was blocked by these in the special/locking section. Signed-off-by: Tom Talpey <tmtalpey@gmail.com> Cc: Tom Tucker <tom@opengridcomputing.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc')
-rw-r--r--net/sunrpc/xprtrdma/svc_rdma_sendto.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/net/sunrpc/xprtrdma/svc_rdma_sendto.c b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
index a3334e3b73cc..d0bea987d80e 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_sendto.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
@@ -191,7 +191,6 @@ static int map_xdr(struct svcxprt_rdma *xprt,
191 struct xdr_buf *xdr, 191 struct xdr_buf *xdr,
192 struct svc_rdma_req_map *vec) 192 struct svc_rdma_req_map *vec)
193{ 193{
194 int sge_max = (xdr->len+PAGE_SIZE-1) / PAGE_SIZE + 3;
195 int sge_no; 194 int sge_no;
196 u32 sge_bytes; 195 u32 sge_bytes;
197 u32 page_bytes; 196 u32 page_bytes;
@@ -235,7 +234,11 @@ static int map_xdr(struct svcxprt_rdma *xprt,
235 sge_no++; 234 sge_no++;
236 } 235 }
237 236
238 BUG_ON(sge_no > sge_max); 237 dprintk("svcrdma: map_xdr: sge_no %d page_no %d "
238 "page_base %zd page_len %zd head_len %d tail_len %d\n",
239 sge_no, page_no, xdr->page_base, xdr->page_len,
240 xdr->head[0].iov_len, xdr->tail[0].iov_len);
241
239 vec->count = sge_no; 242 vec->count = sge_no;
240 return 0; 243 return 0;
241} 244}
@@ -579,7 +582,6 @@ static int send_reply(struct svcxprt_rdma *rdma,
579 ctxt->sge[page_no+1].length = 0; 582 ctxt->sge[page_no+1].length = 0;
580 } 583 }
581 BUG_ON(sge_no > rdma->sc_max_sge); 584 BUG_ON(sge_no > rdma->sc_max_sge);
582 BUG_ON(sge_no > ctxt->count);
583 memset(&send_wr, 0, sizeof send_wr); 585 memset(&send_wr, 0, sizeof send_wr);
584 ctxt->wr_op = IB_WR_SEND; 586 ctxt->wr_op = IB_WR_SEND;
585 send_wr.wr_id = (unsigned long)ctxt; 587 send_wr.wr_id = (unsigned long)ctxt;