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svcrdma: Clean up process_context() 

Be sure the completed ctxt is put in every path.

The xprt enqueue can take a while, so put the completed ctxt back
in circulation _before_ enqueuing the xprt.

Remove/disable debugging.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Acked-by: Bruce Fields <bfields@fieldses.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Chuck Lever 2016-01-07 14:49:03 -05:00 committed by Doug Ledford
parent 3d61677c4d
commit ced4ac0c4f
1 changed files with 21 additions and 23 deletions
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44
net/sunrpc/xprtrdma/svc_rdma_transport.c
View File

@ -386,46 +386,44 @@ static void rq_cq_reap(struct svcxprt_rdma *xprt)
static void process_context(struct svcxprt_rdma *xprt,
struct svc_rdma_op_ctxt *ctxt)
{
struct svc_rdma_op_ctxt *read_hdr;
int free_pages = 0;
svc_rdma_unmap_dma(ctxt);
switch (ctxt->wr_op) {
case IB_WR_SEND:
if (ctxt->frmr)
pr_err("svcrdma: SEND: ctxt->frmr != NULL\n");
svc_rdma_put_context(ctxt, 1);
free_pages = 1;
break;
case IB_WR_RDMA_WRITE:
if (ctxt->frmr)
pr_err("svcrdma: WRITE: ctxt->frmr != NULL\n");
svc_rdma_put_context(ctxt, 0);
break;
case IB_WR_RDMA_READ:
case IB_WR_RDMA_READ_WITH_INV:
svc_rdma_put_frmr(xprt, ctxt->frmr);
if (test_bit(RDMACTXT_F_LAST_CTXT, &ctxt->flags)) {
struct svc_rdma_op_ctxt *read_hdr = ctxt->read_hdr;
if (read_hdr) {
spin_lock_bh(&xprt->sc_rq_dto_lock);
set_bit(XPT_DATA, &xprt->sc_xprt.xpt_flags);
list_add_tail(&read_hdr->dto_q,
&xprt->sc_read_complete_q);
spin_unlock_bh(&xprt->sc_rq_dto_lock);
} else {
pr_err("svcrdma: ctxt->read_hdr == NULL\n");
}
svc_xprt_enqueue(&xprt->sc_xprt);
}
if (!test_bit(RDMACTXT_F_LAST_CTXT, &ctxt->flags))
break;
read_hdr = ctxt->read_hdr;
svc_rdma_put_context(ctxt, 0);
break;
spin_lock_bh(&xprt->sc_rq_dto_lock);
set_bit(XPT_DATA, &xprt->sc_xprt.xpt_flags);
list_add_tail(&read_hdr->dto_q,
&xprt->sc_read_complete_q);
spin_unlock_bh(&xprt->sc_rq_dto_lock);
svc_xprt_enqueue(&xprt->sc_xprt);
return;
default:
printk(KERN_ERR "svcrdma: unexpected completion type, "
"opcode=%d\n",
ctxt->wr_op);
dprintk("svcrdma: unexpected completion opcode=%d\n",
ctxt->wr_op);
break;
}
svc_rdma_put_context(ctxt, free_pages);
}
/*