diff mbox series

[bpf-next,09/13] selftests: xsk: fix socket creation retry

Message ID 20210922075613.12186-10-magnus.karlsson@gmail.com (mailing list archive)
State Accepted
Commit 89013b8a29281fa42e39406b8b25672cb6ce2341
Delegated to: BPF
Headers show
Series xsk: i40e: ice: introduce batching for Rx buffer allocation | expand

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netdev/cc_maintainers warning 11 maintainers not CCed: davem@davemloft.net kpsingh@kernel.org hawk@kernel.org john.fastabend@gmail.com yhs@fb.com linux-kselftest@vger.kernel.org shuah@kernel.org kuba@kernel.org andrii@kernel.org songliubraving@fb.com kafai@fb.com
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Commit Message

Magnus Karlsson Sept. 22, 2021, 7:56 a.m. UTC 
From: Magnus Karlsson <magnus.karlsson@intel.com>

The socket creation retry unnecessarily registered the umem once for
every retry. No reason to do this. It wastes memory and it might lead
to too many pages being locked at some point and the failure of a
test.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
---
 tools/testing/selftests/bpf/xdpxceiver.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c
index c5c68b860ae0..aa5660dc0699 100644
--- a/tools/testing/selftests/bpf/xdpxceiver.c
+++ b/tools/testing/selftests/bpf/xdpxceiver.c
@@ -919,18 +919,17 @@  static void thread_common_ops(struct test_spec *test, struct ifobject *ifobject)
 		u64 umem_sz = ifobject->umem->num_frames * ifobject->umem->frame_size;
 		u32 ctr = 0;
 		void *bufs;
+		int ret;
 
 		bufs = mmap(NULL, umem_sz, PROT_READ | PROT_WRITE, mmap_flags, -1, 0);
 		if (bufs == MAP_FAILED)
 			exit_with_error(errno);
 
-		while (ctr++ < SOCK_RECONF_CTR) {
-			int ret;
-
-			ret = xsk_configure_umem(&ifobject->umem_arr[i], bufs, umem_sz);
-			if (ret)
-				exit_with_error(-ret);
+		ret = xsk_configure_umem(&ifobject->umem_arr[i], bufs, umem_sz);
+		if (ret)
+			exit_with_error(-ret);
 
+		while (ctr++ < SOCK_RECONF_CTR) {
 			ret = xsk_configure_socket(&ifobject->xsk_arr[i], &ifobject->umem_arr[i],
 						   ifobject, i);
 			if (!ret)