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russellcnv
2025-12-18 14:38:12 -08:00
parent 58a0f49bed
commit a3af2867b7
94 changed files with 77091 additions and 74546 deletions
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23
kernel-open/nvidia/nv-dmabuf.c
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@@ -468,9 +468,28 @@ nv_dma_buf_dup_mem_handles(
return NV_OK;
failed:
nv_dma_buf_undup_mem_handles_unlocked(sp, params->index, count, priv);
if (!priv->acquire_release_all_gpu_lock_on_dup)
{
//
// Undup requires taking all-GPUs lock.
// So if single GPU lock was taken,
// release it first so all-GPUs lock can be taken in
// nv_dma_buf_undup_mem_handles().
//
nv_dma_buf_release_gpu_lock(sp, priv);
nv_dma_buf_release_gpu_lock(sp, priv);
nv_dma_buf_undup_mem_handles(sp, params->index, count, priv);
}
else
{
//
// Here, all-GPUs lock is already taken, so undup the handles under
// the unlocked version of the function and then release the locks.
//
nv_dma_buf_undup_mem_handles_unlocked(sp, params->index, count, priv);
nv_dma_buf_release_gpu_lock(sp, priv);
}
unlock_api_lock:
rm_release_api_lock(sp);