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xprtrdma: Remove BUG_ON() call sites 

If an error occurs in the marshaling logic, fail the RPC request
being processed, but leave the client running.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
hifive-unleashed-5.1
Chuck Lever 2014-05-28 10:35:06 -04:00 committed by Anna Schumaker
parent e7ce710a88
commit c977dea227
2 changed files with 12 additions and 9 deletions
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3
net/sunrpc/xprtrdma/transport.c
View File

@ -463,7 +463,8 @@ xprt_rdma_allocate(struct rpc_task *task, size_t size)
struct rpcrdma_req *req, *nreq;
req = rpcrdma_buffer_get(&rpcx_to_rdmax(xprt)->rx_buf);
BUG_ON(NULL == req);
if (req == NULL)
return NULL;
if (size > req->rl_size) {
dprintk("RPC: %s: size %zd too large for buffer[%zd]: "

18
net/sunrpc/xprtrdma/verbs.c
View File

@ -1302,7 +1302,6 @@ rpcrdma_buffer_put(struct rpcrdma_req *req)
int i;
unsigned long flags;
BUG_ON(req->rl_nchunks != 0);
spin_lock_irqsave(&buffers->rb_lock, flags);
buffers->rb_send_bufs[--buffers->rb_send_index] = req;
req->rl_niovs = 0;
@ -1535,10 +1534,6 @@ rpcrdma_register_frmr_external(struct rpcrdma_mr_seg *seg,
} else
post_wr = &frmr_wr;
/* Bump the key */
key = (u8)(seg1->mr_chunk.rl_mw->r.frmr.fr_mr->rkey & 0x000000FF);
ib_update_fast_reg_key(seg1->mr_chunk.rl_mw->r.frmr.fr_mr, ++key);
/* Prepare FRMR WR */
memset(&frmr_wr, 0, sizeof frmr_wr);
frmr_wr.wr_id = (unsigned long)(void *)seg1->mr_chunk.rl_mw;
@ -1549,7 +1544,16 @@ rpcrdma_register_frmr_external(struct rpcrdma_mr_seg *seg,
frmr_wr.wr.fast_reg.page_list_len = page_no;
frmr_wr.wr.fast_reg.page_shift = PAGE_SHIFT;
frmr_wr.wr.fast_reg.length = page_no << PAGE_SHIFT;
BUG_ON(frmr_wr.wr.fast_reg.length < len);
if (frmr_wr.wr.fast_reg.length < len) {
while (seg1->mr_nsegs--)
rpcrdma_unmap_one(ia, seg++);
return -EIO;
}
/* Bump the key */
key = (u8)(seg1->mr_chunk.rl_mw->r.frmr.fr_mr->rkey & 0x000000FF);
ib_update_fast_reg_key(seg1->mr_chunk.rl_mw->r.frmr.fr_mr, ++key);
frmr_wr.wr.fast_reg.access_flags = (writing ?
IB_ACCESS_REMOTE_WRITE | IB_ACCESS_LOCAL_WRITE :
IB_ACCESS_REMOTE_READ);
@ -1709,9 +1713,7 @@ rpcrdma_deregister_external(struct rpcrdma_mr_seg *seg,
#if RPCRDMA_PERSISTENT_REGISTRATION
case RPCRDMA_ALLPHYSICAL:
BUG_ON(nsegs != 1);
rpcrdma_unmap_one(ia, seg);
rc = 0;
break;
#endif