[PATCH 0/2] Preserve framebuffer during rmfb / drm fd close.

[Maarten Lankhorst]

This is breaks the abi slightly, but allows preserving the framebuffer contents across processes.
Any system compositor or fbdev should take care of resetting the planes and mode anyway.

Restoring a framebuffer requires a call to getfb, which checks for
CAP_SYS_ADMIN, DRM_MASTER or access to the control file. Any of those
require privileges, so this shouldn't be a security issue.

Maarten Lankhorst (2):
  drm/core: Preserve the framebuffer after removing it.
  drm/core: Preserve the fb id on close.

 drivers/gpu/drm/drm_crtc.c | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

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2.1.0