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Wed, 01 Apr 2026 01:44:36 -0700 (PDT) Received: from redhat.com ([209.132.188.88]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-82ca8465746sm14068621b3a.21.2026.04.01.01.44.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Apr 2026 01:44:35 -0700 (PDT) Date: Wed, 1 Apr 2026 16:44:32 +0800 From: Li Wang To: "David Hildenbrand (Arm)" Cc: akpm@linux-foundation.org, rppt@kernel.org, ljs@kernel.org, Liam.Howlett@oracle.com, vbabka@kernel.org, surenb@google.com, mhocko@suse.com, shuah@kernel.org, aubaker@redhat.com, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH v4] selftests/mm: skip hugetlb_dio tests when DIO alignment is incompatible Message-ID: References: <20260330125307.98581-1-liwang@redhat.com> <96d14f27-ca0f-413d-8b61-768933ee70ba@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Wed, Apr 01, 2026 at 10:34:40AM +0200, David Hildenbrand (Arm) wrote: > On 4/1/26 02:39, Li Wang wrote: > >>> +static void run_test(int fd, unsigned int start_off, > >>> + unsigned int end_off, unsigned int align) > >> > >> Nit: prefer to-tab alignment in MM land. > > > > Yes, I noticed Andrew (thanks!) corrected it and added to -mm mm-new branch. > > > >>> +{ > >>> + if (!check_dio_alignment(start_off, end_off, align)) > >>> + return; > >> > >> Is there a reason we just perform that at the beginning of > >> run_dio_using_hugetlb(), avoiding run_test() entirely? > > > > That will make the run_dio_using_hugetlb() have too many args and > > uncomfortable to read, yes, it's more likely personal preference. > > Nah, just squash it. There is no need for this separate function, really. Okay, let me do it in patch v5. -- Regards, Li Wang