mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 02:25:21 +07:00
648a4ce7ca
Since David Herrmann's mmap vma manager rework we don't need to grab dev->struct_mutex any more to prevent races when looking up the mmap offset. Drop it and instead don't forget to use the unref_unlocked variant (since the drm core still cares). Aside: I stumbled over the mmap handler which directly does a dma_mmap_attrs. But totally fails to grab a reference on the underlying object and hence looks like it happily just leaks the ptes since there's no guarantee the mmap isn't still around when gem_free_object is called. Which the kerneldoc of dma_mmap_attrs explicitly forbids. v2: Fixup compile fail 0-day spotted. Cc: Mark Yao <mark.yao@rock-chips.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> |
||
|---|---|---|
| .. | ||
| dw_hdmi-rockchip.c | ||
| Kconfig | ||
| Makefile | ||
| rockchip_drm_drv.c | ||
| rockchip_drm_drv.h | ||
| rockchip_drm_fb.c | ||
| rockchip_drm_fb.h | ||
| rockchip_drm_fbdev.c | ||
| rockchip_drm_fbdev.h | ||
| rockchip_drm_gem.c | ||
| rockchip_drm_gem.h | ||
| rockchip_drm_vop.c | ||
| rockchip_drm_vop.h | ||