Re: [RFC v0 1/4] vfs: add copy_range syscall and vfs entry point

[Zach Brown]

On Wed, May 15, 2013 at 07:44:05PM +0000, Eric Wong wrote:
> Why introduce a new syscall instead of extending sys_splice?

Personally, I think it's ugly to have different operations use the same
syscall just because their arguments match.

But that preference aside, sure, if the consensus is that we'd rather
use the splice() entry point then I can duck tape the pieces together to
make it work.

> If the user doesn't need a out offset, then sendfile() should also be
> able to transparently utilize COPY/CLONE_RANGE, too.

Perhaps, yeah.

- z
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