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authorChuck Lever <chuck.lever@oracle.com>2021-01-29 00:47:56 +0300
committerChuck Lever <chuck.lever@oracle.com>2021-03-22 20:22:13 +0300
commit579900670ac770a547ff607a60c02c56a7d27bd7 (patch)
tree060280b7d88d897ed87022549157ecbfde957338 /net/sunrpc
parent2a1e4f21d84184f7ff5768ee3d3d0c30b1135867 (diff)
downloadlinux-579900670ac770a547ff607a60c02c56a7d27bd7.tar.xz
svcrdma: Remove unused sc_pages field
Clean up. This significantly reduces the size of struct svc_rdma_send_ctxt. Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'net/sunrpc')
-rw-r--r--net/sunrpc/xprtrdma/svc_rdma_sendto.c25
1 files changed, 0 insertions, 25 deletions
diff --git a/net/sunrpc/xprtrdma/svc_rdma_sendto.c b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
index 62d55850ca54..f093c9b536ff 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_sendto.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
@@ -219,7 +219,6 @@ out:
ctxt->sc_send_wr.num_sge = 0;
ctxt->sc_cur_sge_no = 0;
- ctxt->sc_page_count = 0;
return ctxt;
out_empty:
@@ -234,8 +233,6 @@ out_empty:
* svc_rdma_send_ctxt_put - Return send_ctxt to free list
* @rdma: controlling svcxprt_rdma
* @ctxt: object to return to the free list
- *
- * Pages left in sc_pages are DMA unmapped and released.
*/
void svc_rdma_send_ctxt_put(struct svcxprt_rdma *rdma,
struct svc_rdma_send_ctxt *ctxt)
@@ -256,9 +253,6 @@ void svc_rdma_send_ctxt_put(struct svcxprt_rdma *rdma,
ctxt->sc_sges[i].length);
}
- for (i = 0; i < ctxt->sc_page_count; ++i)
- put_page(ctxt->sc_pages[i]);
-
spin_lock(&rdma->sc_send_lock);
list_add(&ctxt->sc_list, &rdma->sc_send_ctxts);
spin_unlock(&rdma->sc_send_lock);
@@ -792,25 +786,6 @@ int svc_rdma_map_reply_msg(struct svcxprt_rdma *rdma,
svc_rdma_xb_dma_map, &args);
}
-/* The svc_rqst and all resources it owns are released as soon as
- * svc_rdma_sendto returns. Transfer pages under I/O to the ctxt
- * so they are released by the Send completion handler.
- */
-static inline void svc_rdma_save_io_pages(struct svc_rqst *rqstp,
- struct svc_rdma_send_ctxt *ctxt)
-{
- int i, pages = rqstp->rq_next_page - rqstp->rq_respages;
-
- ctxt->sc_page_count += pages;
- for (i = 0; i < pages; i++) {
- ctxt->sc_pages[i] = rqstp->rq_respages[i];
- rqstp->rq_respages[i] = NULL;
- }
-
- /* Prevent svc_xprt_release from releasing pages in rq_pages */
- rqstp->rq_next_page = rqstp->rq_respages;
-}
-
/* Prepare the portion of the RPC Reply that will be transmitted
* via RDMA Send. The RPC-over-RDMA transport header is prepared
* in sc_sges[0], and the RPC xdr_buf is prepared in following sges.