* Anthony Liguori (anth...@codemonkey.ws) wrote:
> The ioctl() interface is quite bad for what you're doing.  You're  
> telling the kernel extra information about a VA range in userspace.   
> That's what madvise is for.  You're tweaking simple read/write values of  
> kernel infrastructure.  That's what sysfs is for.

I agree re: sysfs (brought it up myself before).  As far as madvise vs.
ioctl, the one thing that comes from the ioctl is fops->release to
automagically unregister memory on exit.  This needs to be handled
anyway if some -p pid is added to add a process after it's running,
so less weight there.

thanks,
-chris
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to