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From: "David Hildenbrand (Arm)" <david@kernel.org>
To: Sarthak Sharma <sarthak.sharma@arm.com>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>,
	"Liam R . Howlett" <liam@infradead.org>,
	Vlastimil Babka <vbabka@kernel.org>,
	Mike Rapoport <rppt@kernel.org>,
	Suren Baghdasaryan <surenb@google.com>,
	Michal Hocko <mhocko@suse.com>, Shuah Khan <shuah@kernel.org>,
	Zi Yan <ziy@nvidia.com>,
	Baolin Wang <baolin.wang@linux.alibaba.com>,
	Nico Pache <npache@redhat.com>,
	Ryan Roberts <ryan.roberts@arm.com>, Dev Jain <dev.jain@arm.com>,
	Barry Song <baohua@kernel.org>, Lance Yang <lance.yang@linux.dev>,
	Jason Gunthorpe <jgg@ziepe.ca>,
	John Hubbard <jhubbard@nvidia.com>, Peter Xu <peterx@redhat.com>,
	Leon Romanovsky <leon@kernel.org>,
	Jonathan Corbet <corbet@lwn.net>,
	Shuah Khan <skhan@linuxfoundation.org>,
	Mark Brown <broonie@kernel.org>,
	Anshuman Khandual <anshuman.khandual@arm.com>,
	linux-mm@kvack.org, linux-kselftest@vger.kernel.org,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v7 5/6] tools/mm: make gup_bench a benchmark only tool
Date: Mon, 24 Aug 2026 14:37:58 +0200	[thread overview]
Message-ID: <c635db29-9067-4783-b706-92e81ba8ce88@kernel.org> (raw)
In-Reply-To: <20260813181230.483746-6-sarthak.sharma@arm.com>

On 8/13/26 20:12, Sarthak Sharma wrote:
> Remove the functional modes (GUP_BASIC_TEST, PIN_BASIC_TEST and
> DUMP_USER_PAGES_TEST) from gup_bench. Drop the kselftest dependency
> and use normal diagnostics and exit statuses.
> 
> When no arguments are supplied, run a single GUP_FAST_BENCHMARK
> with the existing default values. Let users select other
> configurations through command-line options. Report ioctl failures
> and handle errors without relying on assert().
> 
> Suggested-by: David Hildenbrand (Arm) <david@kernel.org>
> Signed-off-by: Sarthak Sharma <sarthak.sharma@arm.com>
> ---


[...]

>  	free(tid);
>  
> -	ksft_exit_pass();
> +	if (thread_error)
> +		goto err_unmap;
> +
> +	munmap((void *)gup.addr, size);
> +	close(gup_fd);
> +	close(filed);
> +	return 0;
> +
> +err_unmap:
> +	munmap((void *)gup.addr, size);
> +err_close_gup_fd:
> +	close(gup_fd);
> +err_close_filed:
> +	close(filed);
> +	return 1;
>  }

Why not have a "int ret = 1;" and just befor ethe err_unmap, do ret = 0;

That way you avoid the duplicate exit code.


Apart from that

Acked-by: David Hildenbrand (Arm) <david@kernel.org>

-- 
Cheers,

David

  parent reply	other threads:[~2026-08-24 12:38 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-13 18:12 [PATCH v7 0/6] selftests/mm: separate GUP microbenchmarking from functional testing Sarthak Sharma
2026-08-13 18:12 ` [PATCH v7 1/6] selftests/mm: make file helpers return errors Sarthak Sharma
2026-08-24  7:59   ` Mike Rapoport
2026-08-24 12:17   ` David Hildenbrand (Arm)
2026-08-24 12:27     ` Mark Brown
2026-08-24 12:29       ` David Hildenbrand (Arm)
2026-08-25  8:40         ` Sarthak Sharma
2026-08-25  9:05   ` Usama Anjum
2026-08-25  9:12     ` David Hildenbrand (Arm)
2026-08-13 18:12 ` [PATCH v7 2/6] tools/lib/mm: add shared file helpers Sarthak Sharma
2026-08-24  7:59   ` Mike Rapoport
2026-08-24 12:27   ` David Hildenbrand (Arm)
2026-08-13 18:12 ` [PATCH v7 3/6] tools/lib/mm: move hugepage_settings out of selftests Sarthak Sharma
2026-08-24  7:59   ` Mike Rapoport
2026-08-24 12:32   ` David Hildenbrand (Arm)
2026-08-13 18:12 ` [PATCH v7 4/6] tools/mm: move gup_test from selftests/mm to tools/mm Sarthak Sharma
2026-08-24  7:59   ` Mike Rapoport
2026-08-24 12:33   ` David Hildenbrand (Arm)
2026-08-13 18:12 ` [PATCH v7 5/6] tools/mm: make gup_bench a benchmark only tool Sarthak Sharma
2026-08-24  7:59   ` Mike Rapoport
2026-08-24 12:37   ` David Hildenbrand (Arm) [this message]
2026-08-25  8:43     ` Sarthak Sharma
2026-08-13 18:12 ` [PATCH v7 6/6] selftests/mm: add a GUP selftest Sarthak Sharma
2026-08-24  7:59   ` Mike Rapoport
2026-08-24 10:11     ` Sarthak Sharma
2026-08-25  9:26   ` David Hildenbrand (Arm)
2026-08-25 11:09     ` Sarthak Sharma
2026-08-25 11:12       ` David Hildenbrand (Arm)
2026-08-24  4:12 ` [PATCH v7 0/6] selftests/mm: separate GUP microbenchmarking from functional testing Sarthak Sharma
2026-08-25 10:43 ` Usama Anjum

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