Re: [PATCH] context_tracking: remove duplicate enabled check

From: Rik van Riel
Date: Tue Apr 28 2015 - 16:04:28 EST

On 04/28/2015 07:36 AM, Paolo Bonzini wrote:
> All calls to context_tracking_enter and context_tracking_exit
> are already checking context_tracking_is_enabled, except the
> context_tracking_user_enter and context_tracking_user_exit
> functions left in for the benefit of assembly calls.
> Pull the check up to those functions, by making them simple
> wrappers around the user_enter and user_exit inline functions.

With this and your other (not yet posted) patch, run time
for the kvm-unit-tests vmexit.flat vmcall test with 10
million iterations drops from 17.8 to 17.5 seconds, which
is about a 1.7% speedup.

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