On Mon, Apr 20, 2020 at 01:26:43PM -0700, Maciej Żenczykowski wrote: > From: Maciej Żenczykowski <maze@xxxxxxxxxx> > > On a device like a cellphone which is constantly suspending > and resuming CLOCK_MONOTONIC is not particularly useful for > keeping track of or reacting to external network events. > Instead you want to use CLOCK_BOOTTIME. > > Hence add bpf_ktime_get_boot_ns() as a mirror of bpf_ktime_get_ns() > based around CLOCK_BOOTTIME instead of CLOCK_MONOTONIC. > > Signed-off-by: Maciej Żenczykowski <maze@xxxxxxxxxx> ... > diff --git a/net/core/filter.c b/net/core/filter.c > index 755867867e57..ec567d1e6fb9 100644 > --- a/net/core/filter.c > +++ b/net/core/filter.c > @@ -6009,6 +6009,8 @@ bpf_base_func_proto(enum bpf_func_id func_id) > return &bpf_tail_call_proto; > case BPF_FUNC_ktime_get_ns: > return &bpf_ktime_get_ns_proto; > + case BPF_FUNC_ktime_get_boot_ns: > + return &bpf_ktime_get_boot_ns_proto; > default: > break; > } That part got moved into kernel/bpf/helpers.c in the mean time. I fixed it up and applied. Thanks In the future please cc bpf@vger for all bpf related patches.
