On Thu, 26 May 2011 18:00:25 +0100 Simon Wilkinson <[email protected]> wrote:
> I haven't verified this, but my reading of the write code path > suggests that iov_iter_copy_from_user_atomic() will only copy data > that is available and we'll go round the loop in > generic_perform_write(), firstly paging in the data, then beginning > the write, until we can copy all of the requested data. So I would > hope that this isn't an issue on modern systems. Yeah, I see it now. Even if we don't manage to copy any data out, it's just another iteration of the loop, so we keep retrying until it succeeds. That's what I wanted to know; thanks! -- Andrew Deason [email protected] _______________________________________________ OpenAFS-devel mailing list [email protected] https://lists.openafs.org/mailman/listinfo/openafs-devel
