splice vs execve lockdep trace.

Linus Torvalds torvalds at linux-foundation.org
Wed Jul 17 11:03:11 CDT 2013


On Tue, Jul 16, 2013 at 10:51 PM, Dave Chinner <david at fromorbit.com> wrote:
>
> But When i say "stale data" I mean that the data being returned
> might not have originally belonged to the underlying file you are
> reading.

We're still talking at cross purposes then.

How the hell do you handle mmap() and page faulting?

Because if you return *that* kind of stale data, than you're horribly
horribly buggy. And you cannot *possibly* blame
generic_file_splice_read() on that.

                  Linus



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