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[2003:d8:2f37:2b00:948c:dd9f:29c8:73f4]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-45b6f0c6fe5sm239195655e9.5.2025.09.01.07.00.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 01 Sep 2025 07:00:53 -0700 (PDT) Message-ID: <5ff7c9bc-1722-4d8a-ad2e-8d567216a4e4@redhat.com> Date: Mon, 1 Sep 2025 16:00:50 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 10/12] mm: constify various inline test functions for improved const-correctness To: Max Kellermann , akpm@linux-foundation.org, axelrasmussen@google.com, yuanchu@google.com, willy@infradead.org, hughd@google.com, mhocko@suse.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, vbabka@suse.cz, rppt@kernel.org, surenb@google.com, vishal.moola@gmail.com, linux@armlinux.org.uk, James.Bottomley@HansenPartnership.com, deller@gmx.de, agordeev@linux.ibm.com, gerald.schaefer@linux.ibm.com, hca@linux.ibm.com, gor@linux.ibm.com, borntraeger@linux.ibm.com, svens@linux.ibm.com, davem@davemloft.net, andreas@gaisler.com, dave.hansen@linux.intel.com, luto@kernel.org, peterz@infradead.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, x86@kernel.org, hpa@zytor.com, chris@zankel.net, jcmvbkbc@gmail.com, viro@zeniv.linux.org.uk, brauner@kernel.org, jack@suse.cz, weixugc@google.com, baolin.wang@linux.alibaba.com, rientjes@google.com, shakeel.butt@linux.dev, thuth@redhat.com, broonie@kernel.org, osalvador@suse.de, jfalempe@redhat.com, mpe@ellerman.id.au, nysal@linux.ibm.com, linux-arm-kernel@lists.infradead.org, linux-parisc@vger.kernel.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, linux-fsdevel@vger.kernel.org References: <20250901123028.3383461-1-max.kellermann@ionos.com> <20250901123028.3383461-11-max.kellermann@ionos.com> From: David Hildenbrand Autocrypt: addr=david@redhat.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 6FAD880013 X-Stat-Signature: gp6dwm6ee4nqux1e8f8zjbis3z7twkzi X-Rspam-User: X-HE-Tag: 1756735258-542025 X-HE-Meta: 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 eR9pteHe 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 01.09.25 14:30, Max Kellermann wrote: > We select certain test functions from mm_inline.h which either invoke > each other, functions that are already const-ified, or no further > functions. > > It is therefore relatively trivial to const-ify them, which > provides a basis for further const-ification further up the call > stack. > > One exception is the function folio_migrate_refs() which does write to > the "new" folio pointer; there, only the "old" folio pointer is being > constified; only its "flags" field is read, but nothing written. > > Signed-off-by: Max Kellermann > Reviewed-by: Vishal Moola (Oracle) > --- Also some getters hiding (and functions that actually implement logic -- folio_migrate_refs()) [...] > > -static inline int folio_lru_gen(struct folio *folio) > +static inline int folio_lru_gen(const struct folio *folio) *const ? -- Cheers David / dhildenb