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| author |   Sergey Senozhatsky <senozhatsky@chromium.org> | 2020-11-05 10:47:44 +0900 |
|---|---|---|
| committer |   Gerd Hoffmann <kraxel@redhat.com> | 2020-11-05 12:33:26 +0100 |
| commit | ea86f3defd55f141a44146e66cbf8ffb683d60da (patch) | |
| tree | a1cb12249233efb6d17c3338a05a4315454a38de /drivers/gpu/drm/virtio | |
| parent | drm: document that blobs are ref'counted (diff) | |
| download | linux-dev-ea86f3defd55f141a44146e66cbf8ffb683d60da.tar.xz linux-dev-ea86f3defd55f141a44146e66cbf8ffb683d60da.zip | |
drm/virtio: use kvmalloc for large allocations
We observed that some of virtio_gpu_object_shmem_init() allocations
can be rather costly - order 6 - which can be difficult to fulfill
under memory pressure conditions. Switch to kvmalloc_array() in
virtio_gpu_object_shmem_init() and let the kernel vmalloc the entries
array.
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20201105014744.1662226-1-senozhatsky@chromium.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/virtio')
| -rw-r--r-- | drivers/gpu/drm/virtio/virtgpu_object.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c index 2d3aa7baffe4..d9ad27e00905 100644 --- a/drivers/gpu/drm/virtio/virtgpu_object.c +++ b/drivers/gpu/drm/virtio/virtgpu_object.c @@ -184,8 +184,9 @@ static int virtio_gpu_object_shmem_init(struct virtio_gpu_device *vgdev, *nents = shmem->pages->orig_nents; } - *ents = kmalloc_array(*nents, sizeof(struct virtio_gpu_mem_entry), - GFP_KERNEL); + *ents = kvmalloc_array(*nents, + sizeof(struct virtio_gpu_mem_entry), + GFP_KERNEL); if (!(*ents)) { DRM_ERROR("failed to allocate ent list\n"); return -ENOMEM; |