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Date: Tue, 19 Mar 2024 18:20:33 +0000
From: Matthew Wilcox <willy@infradead.org>
To: Gregory Price <gregory.price@memverge.com>
Cc: Gregory Price <gourry.memverge@gmail.com>, linux-mm@kvack.org,
	linux-api@vger.kernel.org, linux-arch@vger.kernel.org,
	linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org,
	ying.huang@intel.com, dan.j.williams@intel.com, honggyu.kim@sk.com,
	corbet@lwn.net, arnd@arndb.de, luto@kernel.org,
	akpm@linux-foundation.org, shuah@kernel.org
Subject: Re: [RFC v3 3/3] ktest: sys_move_phys_pages ktest
Message-ID: <ZfnXcbd3h3Rj4IIS@casper.infradead.org>
References: <20240319172609.332900-1-gregory.price@memverge.com>
 <20240319172609.332900-4-gregory.price@memverge.com>
 <ZfnQ7n_7cZvk9BkC@casper.infradead.org>
 <ZfnWCRwcZJ4KBmSH@memverge.com>
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On Tue, Mar 19, 2024 at 02:14:33PM -0400, Gregory Price wrote:
> On Tue, Mar 19, 2024 at 05:52:46PM +0000, Matthew Wilcox wrote:
> > On Tue, Mar 19, 2024 at 01:26:09PM -0400, Gregory Price wrote:
> > > Implement simple ktest that looks up the physical address via
> > > /proc/self/pagemap and migrates the page based on that information.
> > 
> > What?  LOL.  No.
> > 
> 
> Certainly the test is stupid and requires admin, but I could not
> come up an easier test to demonstrate the concept - and the docs
> say to include a test with all syscall proposals.
> 
> Am I missing something else important?
> (stupid question: of course I am, but alas I must ask it)

It's not that the test is stupid.  It's the concept that's stupid.