On Mon, 2018-12-03 at 20:58 +0000, Jason Gunthorpe wrote:
> Using the new UVERBS_METHOD_INVOKE_WRITE interface all of the existing
> write() commands can be immediately converted to execute over ioctl.
>
> If -DIOCTL_MODE=ioctl is set then only the IOCTL interface is supported,
> and write will not be called. Otherwise the 'both' mode will auto
> detect the kernel support and use it.
>
> Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
I've pulled this patch, the official uABI headers update commit, and a
commit to change the default to both for the ioctl mode into a PR that
is currently undergoing Travis CI. If it passes, I'll merge it and we
will officially have a ready to test ioctl mode API that can be utilized
to get around the fork() issues created by the security fix to the
write() path support.
--
Doug Ledford <dledford@xxxxxxxxxx>
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