xen/spinlock: Document the xen_nopvspin parameter.
authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Wed, 25 Sep 2013 14:07:20 +0000 (10:07 -0400)
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Wed, 25 Sep 2013 14:07:34 +0000 (10:07 -0400)
Which disables in the ticketlock slowpath the Xen PV optimization's.
Useful for diagnosing issues and comparing benchmarks in
over-commit CPU scenarios.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Documentation/kernel-parameters.txt

Simple merge