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 proper
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 failed to
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 proper atomic support this will be worse.
So add a trylock mode to the
