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[2003:d8:2f37:2b00:948c:dd9f:29c8:73f4]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3d92d51982bsm519348f8f.21.2025.09.01.07.06.58 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 01 Sep 2025 07:07:01 -0700 (PDT) Message-ID: <081a7335-ec84-4e26-9ea2-251e3fc42277@redhat.com> Date: Mon, 1 Sep 2025 16:06:57 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 11/12] mm: constify assert/test functions in mm.h 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> <20250901123028.3383461-12-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-Stat-Signature: g3j55phdd79ph67s8igym68uitxxn34q X-Rspam-User: X-Rspamd-Queue-Id: 4AF801A000D X-Rspamd-Server: rspam05 X-HE-Tag: 1756735625-287438 X-HE-Meta: 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 p5G5CRdf 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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: > For improved const-correctness. > > We select certain assert and test functions 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. > > Signed-off-by: Max Kellermann > --- > include/linux/mm.h | 40 ++++++++++++++++++++-------------------- > 1 file changed, 20 insertions(+), 20 deletions(-) > > diff --git a/include/linux/mm.h b/include/linux/mm.h > index 23864c3519d6..4cca66ba8839 100644 > --- a/include/linux/mm.h > +++ b/include/linux/mm.h > @@ -703,7 +703,7 @@ static inline void release_fault_lock(struct vm_fault *vmf) > mmap_read_unlock(vmf->vma->vm_mm); > } > > -static inline void assert_fault_locked(struct vm_fault *vmf) > +static inline void assert_fault_locked(struct vm_fault *const vmf) > { > if (vmf->flags & FAULT_FLAG_VMA_LOCK) > vma_assert_locked(vmf->vma); > @@ -716,7 +716,7 @@ static inline void release_fault_lock(struct vm_fault *vmf) > mmap_read_unlock(vmf->vma->vm_mm); > } > > -static inline void assert_fault_locked(struct vm_fault *vmf) > +static inline void assert_fault_locked(const struct vm_fault *vmf) > { This confused me a bit: in the upper variant it's "*const" and here it's "const *". There are multiple such cases here, which might imply that it is not "relatively trivial to const-ify them". :) Did you miss to convert some of these cases properly, or is there a reason for this inconsistency? -- Cheers David / dhildenb