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authorDaniel Borkmann <daniel@iogearbox.net>2015-05-29 23:23:06 +0200
committerDavid S. Miller <davem@davemloft.net>2015-05-31 21:44:44 -0700
commit17ca8cbf49be3aa94bb1c2b7ee6545fd70094eb4 (patch)
tree100f160426a26857a776c4b3fd3beb8848bda474 /kernel/trace
parenta24c85abc0815c14d9e5266d06b9acd8a0a57b9a (diff)
ebpf: allow bpf_ktime_get_ns_proto also for networking
As this is already exported from tracing side via commit d9847d310ab4 ("tracing: Allow BPF programs to call bpf_ktime_get_ns()"), we might as well want to move it to the core, so also networking users can make use of it, e.g. to measure diffs for certain flows from ingress/egress. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/bpf_trace.c12
1 files changed, 0 insertions, 12 deletions
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c
index 646445e41bd4..50c4015a8ad3 100644
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -79,18 +79,6 @@ static const struct bpf_func_proto bpf_probe_read_proto = {
.arg3_type = ARG_ANYTHING,
};
-static u64 bpf_ktime_get_ns(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5)
-{
- /* NMI safe access to clock monotonic */
- return ktime_get_mono_fast_ns();
-}
-
-static const struct bpf_func_proto bpf_ktime_get_ns_proto = {
- .func = bpf_ktime_get_ns,
- .gpl_only = true,
- .ret_type = RET_INTEGER,
-};
-
/*
* limited trace_printk()
* only %d %u %x %ld %lu %lx %lld %llu %llx %p conversion specifiers allowed