From: Daniel T. Lee danieltimlee@gmail.com
[ Upstream commit 0afe0a998c40085a6342e1aeb4c510cccba46caf ]
Currently, lwt_len_hist's map lwt_len_hist_map is uses pinning, and the map isn't cleared on test end. This leds to reuse of that map for each test, which prevents the results of the test from being accurate.
This commit fixes the problem by removing of pinned map from bpffs. Also, this commit add the executable permission to shell script files.
Fixes: f74599f7c5309 ("bpf: Add tests and samples for LWT-BPF") Signed-off-by: Daniel T. Lee danieltimlee@gmail.com Signed-off-by: Andrii Nakryiko andrii@kernel.org Link: https://lore.kernel.org/bpf/20201124090310.24374-7-danieltimlee@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- samples/bpf/lwt_len_hist.sh | 2 ++ samples/bpf/test_lwt_bpf.sh | 0 2 files changed, 2 insertions(+) mode change 100644 => 100755 samples/bpf/lwt_len_hist.sh mode change 100644 => 100755 samples/bpf/test_lwt_bpf.sh
diff --git a/samples/bpf/lwt_len_hist.sh b/samples/bpf/lwt_len_hist.sh old mode 100644 new mode 100755 index 090b96eaf7f76..0eda9754f50b8 --- a/samples/bpf/lwt_len_hist.sh +++ b/samples/bpf/lwt_len_hist.sh @@ -8,6 +8,8 @@ VETH1=tst_lwt1b TRACE_ROOT=/sys/kernel/debug/tracing
function cleanup { + # To reset saved histogram, remove pinned map + rm /sys/fs/bpf/tc/globals/lwt_len_hist_map ip route del 192.168.253.2/32 dev $VETH0 2> /dev/null ip link del $VETH0 2> /dev/null ip link del $VETH1 2> /dev/null diff --git a/samples/bpf/test_lwt_bpf.sh b/samples/bpf/test_lwt_bpf.sh old mode 100644 new mode 100755