[Make-wifi-fast] [PATCH RFC v3 0/4] Move TXQ scheduling into mac80211

Johannes Berg johannes at sipsolutions.net
Mon Sep 10 03:52:06 EDT 2018


On Sat, 2018-09-08 at 00:22 +0200, Toke Høiland-Jørgensen wrote:
> 
> A few things that were discussed in the last round that I did *not* change:

Thanks for this list btw.

> - I did not add any locking around next_txq(); the driver is still supposed
>   to maintain a lock that prevents two threads from trying to schedule the
>   same AC at the same time. This is what drivers already do, so I figured it
>   was easier to just keep it that way rather than do it in mac80211.

I'll look at this in the code, but from a maintainer perspective I'm
somewhat worried that this will lead to issues that are really the
driver's fault, but surface in mac80211. I don't know how easy it would
be to catch that.

Might be fine, but something to keep in mind.

johannes


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