Re: [Linux-stable-mirror] backport Rewrite sync_core() to use IRET-to-self to stable kernels?

A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

A: No. Q: Should I include quotations after my reply?

http://daringfireball.net/2007/07/on_top

On Thu, Jan 25, 2018 at 02:22:57AM +0000, Zhang, Ning A wrote:

When Linux runs as a guest OS, CPUID is privileged instruction, sync_core() will be very slow.

If apply this patch, 200ms will be saved for kernel initial, when Linux runs as a guest OS.

That's not a regression. Why not just use a newer kernel release if you want to get the feature of "faster boot"? :)

thanks,

greg k-h