svn commit: r273966 - in head: share/man/man9 sys/kern sys/sys

[Attilio Rao]

On Sun, Nov 2, 2014 at 11:49 PM, Konstantin Belousov
<kostikbel at gmail.com> wrote:
> On Sun, Nov 02, 2014 at 11:37:57PM +0100, Attilio Rao wrote:
>> On Sun, Nov 2, 2014 at 10:38 PM, Konstantin Belousov
>> <kostikbel at gmail.com> wrote:
>> > On Sun, Nov 02, 2014 at 10:17:26PM +0100, Attilio Rao wrote:
>> >> I think that your initial patch (what is in head now) is a better approach.
>> >> I would just make it a lockinit() flag to make it less alien to the KPI.
>> >>
>> >
>> > Ok.
>> >
>> > Can you explain what would the proposed lockinit() flag do ? What should
>> > it change comparing with the current code ?
>>
>> You now provide LK_NODDLKTREAT on a call basis.
>> The lockinit() flag would embed this into the lock attribute and make
>> it always real, without the need for the callers to provide
>> LK_NODDLKTREAT on a call basis.
>
> Am I reading your proposal right ? Do you mean, that for all vnodes,
> I should disable exclusive starvation avoidance at all ? I completely
> disagree with this.

No, I'm saying that we should support doing this at the KPI level. Not
that you should enable this for all the vnodes.

Attilio


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