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Upgrade it to ~512K (which definitely is more than enough). Additionally, convert minors to use XArray instead of IDR to simplify the locking. Corresponding libdrm changes were merged in: https://gitlab.freedesktop.org/mesa/drm/-/merge_requests/305 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) v3 -> v4: Convert from IDR to XArray (Matthew Wilcox) v4 -> v5: Fixup IDR to XArray conversion (Matthew Wilcox) v5 -> v6: Also convert Accel to XArray Rename skip_legacy_minors to force_extended_minors v6 -> v7: Drop the force_extended_minors patch intended for debug Rebase on latest drm-tip Update the cover letter, pointing out libdrm changes Michał Winiarski (3): drm: Use XArray instead of IDR for minors accel: Use XArray instead of IDR for minors drm: Expand max DRM device number to full MINORBITS drivers/accel/drm_accel.c | 110 +++------------------------------ drivers/gpu/drm/drm_drv.c | 97 ++++++++++++++--------------- drivers/gpu/drm/drm_file.c | 2 +- drivers/gpu/drm/drm_internal.h | 4 -- include/drm/drm_accel.h | 18 +----- include/drm/drm_file.h | 5 ++ 6 files changed, 62 insertions(+), 174 deletions(-)