Clean up some duplicate code.
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
net/sunrpc/xprtrdma/fmr_ops.c | 5 +----
net/sunrpc/xprtrdma/frwr_ops.c | 11 ++++-------
net/sunrpc/xprtrdma/rpc_rdma.c | 6 +++---
net/sunrpc/xprtrdma/verbs.c | 15 +++++----------
net/sunrpc/xprtrdma/xprt_rdma.h | 16 ++++++++++++++++
5 files changed, 29 insertions(+), 24 deletions(-)
diff --git a/net/sunrpc/xprtrdma/fmr_ops.c b/net/sunrpc/xprtrdma/fmr_ops.c
index 1ebb09e..59e6402 100644
--- a/net/sunrpc/xprtrdma/fmr_ops.c
+++ b/net/sunrpc/xprtrdma/fmr_ops.c
@@ -310,10 +310,7 @@ enum {
struct rpcrdma_mw *mw;
while (!list_empty(&req->rl_registered)) {
- mw = list_first_entry(&req->rl_registered,
- struct rpcrdma_mw, mw_list);
- list_del_init(&mw->mw_list);
-
+ mw = rpcrdma_pop_mw(&req->rl_registered);
if (sync)
fmr_op_recover_mr(mw);
else
diff --git a/net/sunrpc/xprtrdma/frwr_ops.c b/net/sunrpc/xprtrdma/frwr_ops.c
index 47bed53..f81dd93 100644
--- a/net/sunrpc/xprtrdma/frwr_ops.c
+++ b/net/sunrpc/xprtrdma/frwr_ops.c
@@ -466,8 +466,8 @@
struct ib_send_wr *first, **prev, *last, *bad_wr;
struct rpcrdma_rep *rep = req->rl_reply;
struct rpcrdma_ia *ia = &r_xprt->rx_ia;
- struct rpcrdma_mw *mw, *tmp;
struct rpcrdma_frmr *f;
+ struct rpcrdma_mw *mw;
int count, rc;
dprintk("RPC: %s: req %p\n", __func__, req);
@@ -534,10 +534,10 @@
* them to the free MW list.
*/
unmap:
- list_for_each_entry_safe(mw, tmp, &req->rl_registered, mw_list) {
+ while (!list_empty(&req->rl_registered)) {
+ mw = rpcrdma_pop_mw(&req->rl_registered);
dprintk("RPC: %s: DMA unmapping frmr %p\n",
__func__, &mw->frmr);
- list_del_init(&mw->mw_list);
ib_dma_unmap_sg(ia->ri_device,
mw->mw_sg, mw->mw_nents, mw->mw_dir);
rpcrdma_put_mw(r_xprt, mw);
@@ -571,10 +571,7 @@
struct rpcrdma_mw *mw;
while (!list_empty(&req->rl_registered)) {
- mw = list_first_entry(&req->rl_registered,
- struct rpcrdma_mw, mw_list);
- list_del_init(&mw->mw_list);
-
+ mw = rpcrdma_pop_mw(&req->rl_registered);
if (sync)
frwr_op_recover_mr(mw);
else
diff --git a/net/sunrpc/xprtrdma/rpc_rdma.c b/net/sunrpc/xprtrdma/rpc_rdma.c
index 72b3ca0..a044be2 100644
--- a/net/sunrpc/xprtrdma/rpc_rdma.c
+++ b/net/sunrpc/xprtrdma/rpc_rdma.c
@@ -322,7 +322,7 @@ static bool rpcrdma_results_inline(struct rpcrdma_xprt *r_xprt,
false, &mw);
if (n < 0)
return ERR_PTR(n);
- list_add(&mw->mw_list, &req->rl_registered);
+ rpcrdma_push_mw(mw, &req->rl_registered);
*iptr++ = xdr_one; /* item present */
@@ -390,7 +390,7 @@ static bool rpcrdma_results_inline(struct rpcrdma_xprt *r_xprt,
true, &mw);
if (n < 0)
return ERR_PTR(n);
- list_add(&mw->mw_list, &req->rl_registered);
+ rpcrdma_push_mw(mw, &req->rl_registered);
iptr = xdr_encode_rdma_segment(iptr, mw);
@@ -455,7 +455,7 @@ static bool rpcrdma_results_inline(struct rpcrdma_xprt *r_xprt,
true, &mw);
if (n < 0)
return ERR_PTR(n);
- list_add(&mw->mw_list, &req->rl_registered);
+ rpcrdma_push_mw(mw, &req->rl_registered);
iptr = xdr_encode_rdma_segment(iptr, mw);
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index d1ee33f..81cd31a 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -776,9 +776,7 @@ static void rpcrdma_destroy_id(struct rdma_cm_id *id)
spin_lock(&buf->rb_recovery_lock);
while (!list_empty(&buf->rb_stale_mrs)) {
- mw = list_first_entry(&buf->rb_stale_mrs,
- struct rpcrdma_mw, mw_list);
- list_del_init(&mw->mw_list);
+ mw = rpcrdma_pop_mw(&buf->rb_stale_mrs);
spin_unlock(&buf->rb_recovery_lock);
dprintk("RPC: %s: recovering MR %p\n", __func__, mw);
@@ -796,7 +794,7 @@ static void rpcrdma_destroy_id(struct rdma_cm_id *id)
struct rpcrdma_buffer *buf = &r_xprt->rx_buf;
spin_lock(&buf->rb_recovery_lock);
- list_add(&mw->mw_list, &buf->rb_stale_mrs);
+ rpcrdma_push_mw(mw, &buf->rb_stale_mrs);
spin_unlock(&buf->rb_recovery_lock);
schedule_delayed_work(&buf->rb_recovery_worker, 0);
@@ -1072,11 +1070,8 @@ struct rpcrdma_mw *
struct rpcrdma_mw *mw = NULL;
spin_lock(&buf->rb_mwlock);
- if (!list_empty(&buf->rb_mws)) {
- mw = list_first_entry(&buf->rb_mws,
- struct rpcrdma_mw, mw_list);
- list_del_init(&mw->mw_list);
- }
+ if (!list_empty(&buf->rb_mws))
+ mw = rpcrdma_pop_mw(&buf->rb_mws);
spin_unlock(&buf->rb_mwlock);
if (!mw)
@@ -1099,7 +1094,7 @@ struct rpcrdma_mw *
struct rpcrdma_buffer *buf = &r_xprt->rx_buf;
spin_lock(&buf->rb_mwlock);
- list_add_tail(&mw->mw_list, &buf->rb_mws);
+ rpcrdma_push_mw(mw, &buf->rb_mws);
spin_unlock(&buf->rb_mwlock);
}
diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h
index 852dd0a..171a351 100644
--- a/net/sunrpc/xprtrdma/xprt_rdma.h
+++ b/net/sunrpc/xprtrdma/xprt_rdma.h
@@ -354,6 +354,22 @@ struct rpcrdma_req {
return rqst->rq_xprtdata;
}
+static inline void
+rpcrdma_push_mw(struct rpcrdma_mw *mw, struct list_head *list)
+{
+ list_add_tail(&mw->mw_list, list);
+}
+
+static inline struct rpcrdma_mw *
+rpcrdma_pop_mw(struct list_head *list)
+{
+ struct rpcrdma_mw *mw;
+
+ mw = list_first_entry(list, struct rpcrdma_mw, mw_list);
+ list_del(&mw->mw_list);
+ return mw;
+}
+
/*
* struct rpcrdma_buffer -- holds list/queue of pre-registered memory for
* inline requests/replies, and client/server credits.
--
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