linux-kernel - Re: [PATCH 10/14] KVM: selftests: Use a single binary for dirty/clear log test

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Message-ID: <20200205171109.2a7ufrhiqowkqz6e@kamzik.brq.redhat.com>
Date:   Wed, 5 Feb 2020 18:11:09 +0100
From:   Andrew Jones <drjones@...hat.com>
To:     Peter Xu <peterx@...hat.com>
Cc:     kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        dinechin@...hat.com, sean.j.christopherson@...el.com,
        pbonzini@...hat.com, jasowang@...hat.com, yan.y.zhao@...el.com,
        mst@...hat.com, kevin.tian@...el.com, alex.williamson@...hat.com,
        dgilbert@...hat.com, vkuznets@...hat.com
Subject: Re: [PATCH 10/14] KVM: selftests: Use a single binary for
 dirty/clear log test

On Wed, Feb 05, 2020 at 10:46:17AM -0500, Peter Xu wrote:
> On Wed, Feb 05, 2020 at 10:28:52AM +0100, Andrew Jones wrote:
> > On Tue, Feb 04, 2020 at 09:58:38PM -0500, Peter Xu wrote:
> > > Remove the clear_dirty_log test, instead merge it into the existing
> > > dirty_log_test.  It should be cleaner to use this single binary to do
> > > both tests, also it's a preparation for the upcoming dirty ring test.
> > > 
> > > The default test will still be the dirty_log test.  To run the clear
> > > dirty log test, we need to specify "-M clear-log".
> > 
> > How about keeping most of these changes, which nicely clean up the
> > #ifdefs, but also keeping the separate test, which I think is the
> > preferred way to organize and execute selftests. We can use argv[0]
> > to determine which path to take rather than a command line parameter.
> 
> Hi, Drew,
> 
> How about we just create a few selftest links that points to the same
> test binary in Makefile?  I'm fine with compiling it for mulitple
> binaries too, just in case the makefile trick could be even easier.

I think I prefer the binaries. That way they can be selectively moved
and run elsewhere, i.e. each test is a standalone test.

Thanks,
drew