[Intel-gfx] [PATCH] drm: use seqlocks for vblank time/count

[Mario Kleiner]

On 05/18/2016 05:10 PM, Matthew Auld wrote:
> There's an updated version of this patch already on the ml [1], which
> I Cc'd you in on. I take it that your @tuebingen.mpg.de is in fact an
> old email address?
>
> [1] https://patchwork.freedesktop.org/patch/86354/
>

Your patch looks good to me. I'd only keep that one dropped comment line 
in drmP.h about the vblank counter and ts also needing to be protected 
by the vblank_timelock in addition to the seqlock, as this is still 
needed, especially to get _irqsave part of spin_lock_irqsave, as the 
write seqlocks in don't do the local irq disable. I'll give it a test 
later this week.

Reviewed-by: Mario Kleiner <mario.kleiner.de at gmail.com>

Indeed the old inactive @tuebingen.mpg.de is only a forward to the gmail 
address, probably with some botched mail filter rules, so they can go 
unnoticed quite a while.

thanks,
-mario