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Subject[PATCH v3 0/4] drm: Use full allocated minor range for DRM
Date
64 DRM device nodes is not enough for everyone.
Upgrade it to ~512K (which definitely is more than enough).

To allow testing userspace support for >64 devices, add additional DRM
modparam (skip_legacy_minors) which causes DRM to skip allocating minors
in 0-192 range.
Additionally - one minor tweak around minor DRM IDR locking and IDR lockdep
annotations.

v1 -> v2:
Don't touch DRM_MINOR_CONTROL and its range (Simon Ser)

v2 -> v3:
Don't use legacy scheme for >=192 minor range (Dave Airlie)
Add modparam for testing (Dave Airlie)
Add lockdep annotation for IDR (Daniel Vetter)

Michał Winiarski (4):
drm: Expand max DRM device number to full MINORBITS
drm: Introduce skip_legacy_minors modparam
drm: Use mutex for minors
idr: Add might_alloc() annotation

drivers/gpu/drm/drm_drv.c | 55 ++++++++++++++++++++++-----------------
lib/radix-tree.c | 3 +++
2 files changed, 34 insertions(+), 24 deletions(-)

--
2.37.3

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