drm/radeon: Use kvmalloc for CS chunks

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The number of chunks/chunks_array may be passed in
by userspace and can be large.

It has been observed to cause kcalloc failures from trinity fuzzy test:

 WARNING: CPU: 0 PID: 5487 at mm/page_alloc.c:4385
 __alloc_pages_nodemask+0x2d8/0x14d0

Obviously, the required order in this case is larger than MAX_ORDER.
So, just use kvmalloc instead.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Chen Li <chenli@uniontech.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Chen Li 2021-03-02 14:42:12 +08:00 • committed by Alex Deucher

parent 7c7dd77489

commit 3fcb4f01de

1 changed files with 4 additions and 4 deletions

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drivers/gpu/drm/radeon/radeon_cs.c

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