Re: [PATCH bpf-next v5] bpf: Add bpf_ktime_get_real_ns
From: David Ahern <hidden>
Date: 2020-09-24 22:15:26
Also in:
bpf
On 9/24/20 4:07 PM, bimmy.pujari@intel.com wrote:
quoted hunk ↗ jump to hunk
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h index a22812561064..198e69a6508d 100644 --- a/include/uapi/linux/bpf.h +++ b/include/uapi/linux/bpf.h@@ -3586,6 +3586,13 @@ union bpf_attr { * the data in *dst*. This is a wrapper of **copy_from_user**\ (). * Return * 0 on success, or a negative error in case of failure. + * + * u64 bpf_ktime_get_real_ns(void) + * Description + * Return the real time in nanoseconds. + * See: **clock_gettime**\ (**CLOCK_REALTIME**)
This should be a little more explicit -- something like "See the caveats regarding use of CLOCK_REALTIME in clock_gettime man page."
quoted hunk ↗ jump to hunk
+ * Return + * Current *ktime*. */ #define __BPF_FUNC_MAPPER(FN) \ FN(unspec), \@@ -3737,6 +3744,7 @@ union bpf_attr { FN(inode_storage_delete), \ FN(d_path), \ FN(copy_from_user), \ + FN(ktime_get_real_ns), \ /* */ /* integer value in 'imm' field of BPF_CALL instruction selects which helper