Re: IFEF_MPSAFE

[Ryota Ozaki <ozaki.ryota%gmail.com@localhost>]

On Wed, Nov 15, 2017 at 1:53 PM, Ryota Ozaki <ozaki.ryota%gmail.com@localhost> wrote:
> On Fri, Nov 10, 2017 at 6:35 PM, Ryota Ozaki <ozaki.ryota%gmail.com@localhost> wrote:
>> Hi,
>>
>> http://www.netbsd.org/~ozaki-r/IFEF_MPSAFE.diff
>>
>> I'm going to commit the above change that integrates
>> IFEF_OUTPUT_MPSAFE and IFEF_START_MPSAFE flags into
>> IFEF_MPSAFE.
>>
>> The motivation is to not waste if_extflags bits. I'm now
>> trying to make if_ioctl() hold KERNEL_LOCK selectively
>> for some reasons as well as if_start() and if_output().
>
> BTW this is a patch for this plan:
>   http://www.netbsd.org/~ozaki-r/if_ioctl-no-KERNEL_LOCK.diff
>
> It removes KERNEL_LOCK for if_ioctl from soo_ioctl and
> selectively takes it in doifioctl. To this end, some fine-grain
> KERNEL_LOCKs have to be added where calling components/functions
> that aren't MP-safe.

Revised rebased on latest NET_MPSAFE macros. The new patch also provides
similar macros:
  http://www.netbsd.org/~ozaki-r/if_ioctl-no-KERNEL_LOCK.revised.diff

  ozaki-r