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Message-ID: <24bbd9df-efa7-4090-a696-1eb40904ad85@redhat.com>
Date: Tue, 5 Aug 2025 10:47:15 +0200
From: David Hildenbrand <david@...hat.com>
To: Sudarsan Mahendran <sudarsanm@...gle.com>, linux-kselftest@...r.kernel.org
Cc: Shuah Khan <shuah@...nel.org>, Axel Rasmussen <axelrasmussen@...gle.com>,
 linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
 linux-kernel@...r.kernel.org, trivial@...nel.org
Subject: Re: [PATCH v3] selftests/mm: pass filename as input param to
 VM_PFNMAP tests

On 05.08.25 03:36, Sudarsan Mahendran wrote:
> Enable these tests to be run on other pfnmap'ed memory like
> NVIDIA's EGM.
> 
> Add '--' as a separator to pass in file path. This allows
> passing of cmd line arguments to kselftest_harness.
> Use '/dev/mem' as default filename.
> 
> Existing test passes:
> 	pfnmap
> 	TAP version 13
> 	1..6
> 	# Starting 6 tests from 1 test cases.
> 	# PASSED: 6 / 6 tests passed.
> 	# Totals: pass:6 fail:0 xfail:0 xpass:0 skip:0 error:0
> 
> Pass params to kselftest_harness:
> 	pfnmap -r pfnmap:mremap_fixed
> 	TAP version 13
> 	1..1
> 	# Starting 1 tests from 1 test cases.
> 	#  RUN           pfnmap.mremap_fixed ...
> 	#            OK  pfnmap.mremap_fixed
> 	ok 1 pfnmap.mremap_fixed
> 	# PASSED: 1 / 1 tests passed.
> 	# Totals: pass:1 fail:0 xfail:0 xpass:0 skip:0 error:0
> 
> Pass non-existent file name as input:
> 	pfnmap -- /dev/blah
> 	TAP version 13
> 	1..6
> 	# Starting 6 tests from 1 test cases.
> 	#  RUN           pfnmap.madvise_disallowed ...
> 	#      SKIP      Cannot open '/dev/blah'
> 
> Pass non pfnmap'ed file as input:
> 	pfnmap -r pfnmap.madvise_disallowed -- randfile.txt
> 	TAP version 13
> 	1..1
> 	# Starting 1 tests from 1 test cases.
> 	#  RUN           pfnmap.madvise_disallowed ...
> 	#      SKIP      Invalid file: 'randfile.txt'. Not pfnmap'ed
> 
> Signed-off-by: Sudarsan Mahendran <sudarsanm@...gle.com>
> ---

Thanks!

Acked-by: David Hildenbrand <david@...hat.com>

-- 
Cheers,

David / dhildenb


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