[PATCH 1/2] dma-buf: heaps: DMA_HEAP_IOCTL_ALLOC_READ_FILE framework

[Huan Yang]

在 2024/7/18 11:08, Christoph Hellwig 写道:
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> On Thu, Jul 18, 2024 at 09:51:39AM +0800, Huan Yang wrote:
>> Yes, actually, if dma-buf want's to copy_file_range from a file, it need
>> change something in vfs_copy_file_range:
> No, it doesn't.  copy_file_range is specifically designed to copy inside
> a single file system as already mentioned.  The generic offload for
OK, got it. Thanks to point this.
> copying between arbitrary FDs is splice and the sendfile convenience
> wrapper around it
>