[Intel-gfx] [PATCH 5/8] drm: trylock modest locking for fbdev panics

2014-07-30 Thread Daniel Vetter
On Wed, Jul 30, 2014 at 08:56:07AM -0700, Matt Roper wrote: > On Tue, Jul 29, 2014 at 11:32:20PM +0200, Daniel Vetter wrote: > > In the fbdev code we want to do trylocks only to avoid deadlocks and > > other ugly issues. Thus far we've only grabbed the overall modeset > > lock, but that already fai

[Intel-gfx] [PATCH 5/8] drm: trylock modest locking for fbdev panics

2014-07-30 Thread Matt Roper
On Tue, Jul 29, 2014 at 11:32:20PM +0200, Daniel Vetter wrote: > In the fbdev code we want to do trylocks only to avoid deadlocks and > other ugly issues. Thus far we've only grabbed the overall modeset > lock, but that already failed to exclude a pile of potential > concurrent operations. With pro