On Thu,  2 Sep 2021 13:32:48 +0800
Feifei Wang [off-list ref] wrote:

Add new API for wait_until scheme, and apply this new API into lib to
replace rte_pause.

Feifei Wang (5):
  eal: add new API for wait until scheme
  eal: use wait until scheme for read pflock
  eal: use wait until scheme for mcslock
  lib/bpf: use wait until scheme for Rx/Tx iteration
  lib/distributor: use wait until scheme

 lib/bpf/bpf_pkt.c                        |  11 +-
 lib/distributor/rte_distributor_single.c |  10 +-
 lib/eal/arm/include/rte_pause_64.h       | 271 ++++++++++++++++----
 lib/eal/include/generic/rte_mcslock.h    |   9 +-
 lib/eal/include/generic/rte_pause.h      | 309 +++++++++++++++++++++++
 lib/eal/include/generic/rte_pflock.h     |   5 +-
 6 files changed, 543 insertions(+), 72 deletions(-)

Since these are all inline, would it be possible to make
this a macro and have the caller pass a condition function?

Look at Linux wait_event() for an example of that.