Re: [PATCH 2/2] x86/vdso: Add VCLOCK_HVCLOCK vDSO clock read method

On Fri, 10 Feb 2017, Vitaly Kuznetsov wrote:

Stephen Hemminger [off-list ref] writes:

quoted

Why not use existing seqlock's?

To be honest I don't quite understand how we could use it -- the
sequence locking here is done against the page updated by the
hypersior, we're not creating new structures (so I don't understand how
we could use struct seqcount which we don't have) but I may be
misunderstanding something.

You can't use seqlock, but you might be able to use seqcount. Though I
doubt it given the 0 check ....

Thanks,

	tglx