[Bug 84744] ZaphodHeads need O_NONBLOCK support

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84744

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #27 from Chris Wilson <chris at chris-wilson.co.uk> ---
What Mika forgot to do (which is v.important) was cite the kernel commit:

commit bd008e5b2953186fc0c6633a885ade95e7043800
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Tue Oct 7 14:13:51 2014 +0100

    drm: Implement O_NONBLOCK support on /dev/dri/cardN

    The implmentation is simple in the extreme: we only want to wait for
    events if the device was opened in blocking mode, otherwise we grab what
    is available and report an error if there was none.

    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Cc: dri-devel at lists.freedesktop.org
    Reviewed-by: Jesse Barnes <jbarnes at virtuousgeek.org>
    Testcase: igt/kms_flip/nonblocing_read
    Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>

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