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[2003:cb:c706:2000:e44c:bc46:d8d3:be5]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-38f259d5e92sm20722336f8f.66.2025.02.20.03.53.36 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 20 Feb 2025 03:53:39 -0800 (PST) Message-ID: <22df4791-ea50-400c-b7e4-d7284d195e02@redhat.com> Date: Thu, 20 Feb 2025 12:53:36 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 01/10] mm: Consolidate freeing of typed folios on final folio_put() To: Fuad Tabba , kvm@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-mm@kvack.org Cc: pbonzini@redhat.com, chenhuacai@kernel.org, mpe@ellerman.id.au, anup@brainfault.org, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, seanjc@google.com, viro@zeniv.linux.org.uk, brauner@kernel.org, willy@infradead.org, akpm@linux-foundation.org, xiaoyao.li@intel.com, yilun.xu@intel.com, chao.p.peng@linux.intel.com, jarkko@kernel.org, amoorthy@google.com, dmatlack@google.com, isaku.yamahata@intel.com, mic@digikod.net, vbabka@suse.cz, vannapurve@google.com, ackerleytng@google.com, mail@maciej.szmigiero.name, michael.roth@amd.com, wei.w.wang@intel.com, liam.merwick@oracle.com, isaku.yamahata@gmail.com, kirill.shutemov@linux.intel.com, suzuki.poulose@arm.com, steven.price@arm.com, quic_eberman@quicinc.com, quic_mnalajal@quicinc.com, quic_tsoni@quicinc.com, quic_svaddagi@quicinc.com, quic_cvanscha@quicinc.com, quic_pderrin@quicinc.com, quic_pheragu@quicinc.com, catalin.marinas@arm.com, james.morse@arm.com, yuzenghui@huawei.com, oliver.upton@linux.dev, maz@kernel.org, will@kernel.org, qperret@google.com, keirf@google.com, roypat@amazon.co.uk, shuah@kernel.org, hch@infradead.org, jgg@nvidia.com, rientjes@google.com, jhubbard@nvidia.com, fvdl@google.com, hughd@google.com, jthoughton@google.com References: <20250218172500.807733-1-tabba@google.com> <20250218172500.807733-2-tabba@google.com> From: David Hildenbrand Autocrypt: addr=david@redhat.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Queue-Id: E8FCA1C0011 X-Stat-Signature: g4cf6owjhe5sapw1f4c5aoikrh3159tc X-Rspamd-Server: rspam03 X-HE-Tag: 1740052423-906725 X-HE-Meta: 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 2xOncqJS 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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 18.02.25 18:24, Fuad Tabba wrote: > Some folio types, such as hugetlb, handle freeing their own > folios. Moreover, guest_memfd will require being notified once a > folio's reference count reaches 0 to facilitate shared to private > folio conversion, without the folio actually being freed at that > point. > > As a first step towards that, this patch consolidates freeing > folios that have a type. The first user is hugetlb folios. Later > in this patch series, guest_memfd will become the second user of > this. > > Suggested-by: David Hildenbrand > Acked-by: Vlastimil Babka > Signed-off-by: Fuad Tabba > --- (again on current patch series) Acked-by: David Hildenbrand -- Cheers, David / dhildenb