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AJvYcCXGRTiDG6doE5Yqg6LEynd1poIatyBpY2yB/395+kY0Ae/CPjV6Jm1S/CxkX4vsze7oagl1dlU7m5CGeUaZ9PCqxk4= X-Gm-Message-State: AOJu0YyVImcbL7ZfGz/kuk1dtD8H1Qsw1h8AKPgn26ZfaErQgInsrFSs /4izTcTwKyRGSOfDJrhM97NlvsNqJ9O/dd8QlfjTe3fKzZn/dkwoyvlO/b5gjw2KrvhPLLK30gk JT4zaCZqxKQ7GNP20sAruGYDJlvaCz+aziJQcUA== X-Google-Smtp-Source: AGHT+IF8wcHTAzyZP47djK/jxXQWyvawwUBnhudvKFNvL5Or8b6sQKz1htUdOL48QnhCh+43PeAg8Zrl5zPb3/iHg88= X-Received: by 2002:a05:6830:3812:b0:703:6988:dbed with SMTP id 46e09a7af769-70c9da243afmr4702408a34.34.1723660977004; Wed, 14 Aug 2024 11:42:57 -0700 (PDT) MIME-Version: 1.0 References: <20240813150758.855881-1-surenb@google.com> In-Reply-To: <20240813150758.855881-1-surenb@google.com> From: Pasha Tatashin Date: Wed, 14 Aug 2024 18:42:20 +0000 Message-ID: Subject: Re: [PATCH v3 1/2] alloc_tag: introduce clear_page_tag_ref() helper function To: Suren Baghdasaryan Cc: akpm@linux-foundation.org, kent.overstreet@linux.dev, david@redhat.com, vbabka@suse.cz, souravpanda@google.com, keescook@chromium.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, stable@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspam-User: X-Stat-Signature: sd9ptjzaywhc6b7ftmbz1cdomtun8869 X-Rspamd-Queue-Id: 063AB4000A X-Rspamd-Server: rspam11 X-HE-Tag: 1723660977-138592 X-HE-Meta: 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 bS9sCWd9 pRzBiKv5lAnRV2UF9nBqfmpyqjNfcmzK97ZZtju3Rs3PC33w9rrRWLWSfwxgOyXT5uB/dk6qf8JOvyt+srjY+s6dYFi9by8m7LHtLbFGLxFBtgcgcNlNhrAO4fQuWZNvueQ1Ld08wVPgE86itI9ITznTyoPrtMqJrUI3gabGYExH0GSvDckot1D8iewnXVNl7kchGJdIpoAbPz3dPO7w1mCFrqF8UepIzw4Ls8vXzTBnEizk3q1pAOw5jW1gYQYbJmCZeps/XBCbxeE6JYMU4HOkkCmWNPI+OYgKEQC/1XYPskzAuI2L1pe6/l/oKpIRe4k0eStCTBSnPOZtTvX9PiFM+9EO7UaaazdMI1hHUTKKwYYI= X-Bogosity: Ham, tests=bogofilter, spamicity=0.152781, 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 Tue, Aug 13, 2024 at 3:08=E2=80=AFPM Suren Baghdasaryan wrote: > > In several cases we are freeing pages which were not allocated using > common page allocators. For such cases, in order to keep allocation > accounting correct, we should clear the page tag to indicate that the > page being freed is expected to not have a valid allocation tag. > Introduce clear_page_tag_ref() helper function to be used for this. Reviewed-by: Pasha Tatashin