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authorChuck Lever <chuck.lever@oracle.com>2019-08-20 01:44:04 +0300
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2019-08-20 23:03:41 +0300
commit265a38d4611360ae3d5bb612d586a3126507a954 (patch)
tree5f122a4487823e46ac75ae795b8f3ea7f42010e4 /net/sunrpc/xprtrdma/frwr_ops.c
parent395790566eec37706dedeb94779045adc3a7581e (diff)
downloadlinux-265a38d4611360ae3d5bb612d586a3126507a954.tar.xz
xprtrdma: Simplify rpcrdma_mr_pop
Clean up: rpcrdma_mr_pop call sites check if the list is empty first. Let's replace the list_empty with less costly logic. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net/sunrpc/xprtrdma/frwr_ops.c')
-rw-r--r--net/sunrpc/xprtrdma/frwr_ops.c12
1 files changed, 4 insertions, 8 deletions
diff --git a/net/sunrpc/xprtrdma/frwr_ops.c b/net/sunrpc/xprtrdma/frwr_ops.c
index 3a10bfff2125..d7e763fafa04 100644
--- a/net/sunrpc/xprtrdma/frwr_ops.c
+++ b/net/sunrpc/xprtrdma/frwr_ops.c
@@ -126,12 +126,10 @@ frwr_mr_recycle_worker(struct work_struct *work)
*/
void frwr_reset(struct rpcrdma_req *req)
{
- while (!list_empty(&req->rl_registered)) {
- struct rpcrdma_mr *mr;
+ struct rpcrdma_mr *mr;
- mr = rpcrdma_mr_pop(&req->rl_registered);
+ while ((mr = rpcrdma_mr_pop(&req->rl_registered)))
rpcrdma_mr_unmap_and_put(mr);
- }
}
/**
@@ -532,8 +530,7 @@ void frwr_unmap_sync(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req)
*/
frwr = NULL;
prev = &first;
- while (!list_empty(&req->rl_registered)) {
- mr = rpcrdma_mr_pop(&req->rl_registered);
+ while ((mr = rpcrdma_mr_pop(&req->rl_registered))) {
trace_xprtrdma_mr_localinv(mr);
r_xprt->rx_stats.local_inv_needed++;
@@ -632,8 +629,7 @@ void frwr_unmap_async(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req)
*/
frwr = NULL;
prev = &first;
- while (!list_empty(&req->rl_registered)) {
- mr = rpcrdma_mr_pop(&req->rl_registered);
+ while ((mr = rpcrdma_mr_pop(&req->rl_registered))) {
trace_xprtrdma_mr_localinv(mr);
r_xprt->rx_stats.local_inv_needed++;