git: pf: Allow disappearing or not yet existing interfaces for ALTQ

[Sepherosa Ziehau]

Please backout the "simplify the ifnet_unlock" part.  The original
protection range is used to make sure that the ifp does not get ripped
out behind our back.  To be frank, we don't even suffer the issue this
fix is intended to address; it only makes the code convoluted.

On Wed, Aug 8, 2018 at 5:10 PM, Aaron LI <aly at crater.dragonflybsd.org> wrote:
>
> commit 0a887f91f9633448c99b9a5b7c6116a0a22d25d6
> Author: Aaron LI <aly at aaronly.me>
> Date:   Sat Jun 16 23:18:20 2018 +0800
>
>     pf: Allow disappearing or not yet existing interfaces for ALTQ
>
>     Make ALTQ cope with disappearing interfaces (particularly common with
>     net/mpd4 and netgraph in general).  This also allows to add queues for
>     an interface that is not yet existing, however, you have to provide
>     the bandwidth for the interface.
>
>     Meanwhile, simplify the ifnet_unlock() calls for ifunit() use.
>
>     Taken-from: FreeBSD (r177700)
>
> Summary of changes:
>  sys/net/pf/pf_if.c            |  10 ++++
>  sys/net/pf/pf_ioctl.c         | 123 +++++++++++++++++++++++++++++++++++-------
>  sys/net/pf/pfvar.h            |   6 +++
>  usr.sbin/pfctl/pfctl_altq.c   |   4 ++
>  usr.sbin/pfctl/pfctl_qstats.c |  17 +++++-
>  5 files changed, 139 insertions(+), 21 deletions(-)
>
> http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/0a887f91f9633448c99b9a5b7c6116a0a22d25d6
>
>
> --
> DragonFly BSD source repository



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