From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1FD893B6C13 for ; Tue, 2 Jun 2026 22:23:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780439013; cv=none; b=AUV/zOO4gysUtQoYY02E4sdElZtnlGEGpF3/1ZOaSQ2Ecchr6JLwRLZTvYMvxZ0FxhlCm5V4LwuT8LI8C6WRwY6rUiLKaYY//SiuNqTbU/NQJW4VX37rVnpqQJYP0grCI/MCeMelaSgHsdS9byG9qnM+lMlN0b4apcIeMZuhfiM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780439013; c=relaxed/simple; bh=nNFRHU7cGbcCik6cImtm/3FVGQt4kJCx+mkDS96KtEA=; h=Date:To:From:Subject:Message-Id; b=oGiFIeYKMwYuLaFvnhH+MozZdTrzlC+Lk2sWanZnefsHh8vWsLtTBj9uB144/774g0V+PiNs+P2POMN42NmrDztY/sEExbQxFc/UjnxgaWMaFguAMvxYKIqWIbWz49nB92w4EFnSUZOg3ul8eO8exlmMBY8SjoeqZ7Q3aRJWAk0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=ZuzVNEnE; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="ZuzVNEnE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BE3041F00898; Tue, 2 Jun 2026 22:23:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1780439011; bh=GckvL5XuIHyCllUizW1cL9Mh+sA7ChYYntJf8nvcT1g=; h=Date:To:From:Subject; b=ZuzVNEnEzB5lNABKmlPzvT3ogHw1dR+Xgv3fZXw6To5vX4qy7hgbmehauc91SfQ2c ROV6w8cygeA+mg1TuNeZB+lIrPqewLnfLOn0qAYyaZc7DNsRkvzeYjyw2ySmy5KKUZ cOq6FGflVbVn4UoZMcwauk+FR5cIper86ExJWOxc= Date: Tue, 02 Jun 2026 15:23:31 -0700 To: mm-commits@vger.kernel.org,sj@kernel.org,rppt@kernel.org,ljs@kernel.org,donettom@linux.ibm.com,dev.jain@arm.com,david@kernel.org,lihongfu@kylinos.cn,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] selftests-mm-fix-mmap-return-value-check-in-run_migration_benchmark.patch removed from -mm tree Message-Id: <20260602222331.BE3041F00898@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: selftests/mm: fix mmap() return value check in run_migration_benchmark has been removed from the -mm tree. Its filename was selftests-mm-fix-mmap-return-value-check-in-run_migration_benchmark.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Hongfu Li Subject: selftests/mm: fix mmap() return value check in run_migration_benchmark Date: Tue, 12 May 2026 18:13:05 +0800 mmap() returns MAP_FAILED on error, not NULL. The current check uses !buffer->ptr, which evaluates to false when mmap() fails (since MAP_FAILED is (void *)-1, not 0), so the error path is never taken. Link: https://lore.kernel.org/20260512101305.139509-1-lihongfu@kylinos.cn Signed-off-by: Hongfu Li Acked-by: David Hildenbrand (Arm) Reviewed-by: Dev Jain Acked-by: Mike Rapoport (Microsoft) Reviewed-by: Donet Tom Reviewed-by: Lorenzo Stoakes Reviewed-by: SeongJae Park Signed-off-by: Andrew Morton --- tools/testing/selftests/mm/hmm-tests.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/tools/testing/selftests/mm/hmm-tests.c~selftests-mm-fix-mmap-return-value-check-in-run_migration_benchmark +++ a/tools/testing/selftests/mm/hmm-tests.c @@ -2738,7 +2738,7 @@ static inline int run_migration_benchmar buffer->ptr = mmap(NULL, buffer_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - if (!buffer->ptr) + if (buffer->ptr == MAP_FAILED) return -1; /* Apply THP hint if requested */ _ Patches currently in -mm which might be from lihongfu@kylinos.cn are selftests-mm-fix-incorrect-mmap-error-handling-with-null-instead-of-map_failed.patch