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AJvYcCUYV4AUsnCwY/umGo0FoiD3eerjyUp8AGTDw1Ze3I3TIhvmZP/gjNrPO837GP6/gc9spIqoM32XlQ==@kvack.org X-Gm-Message-State: AOJu0YyxCrB4yL7DNYedTd8zIkNmrwFNyYowXZV4KjQRVI57Cj208ayp wJ7HBlUF1pacbQ5aL8ok+rgmkQL4Oe3dRIWm7AX33j0fri+aC5M4+hs4NzgVxnjAgmBkmqxu/xs ufKm/7nkf7RLnrc1tAzMtDy/SAuvJgEf8ix7V X-Gm-Gg: ASbGncv8n8bqyXhb/g74oooDRQcZdSAvuO/NWqERkQk4yg6Lyi/mS2DTCsx3ur2g9+Q AMpqSQBUD4QEo7wifC2PaDJLEVkanxgVaFwvV9A== X-Google-Smtp-Source: AGHT+IFRZkbOfPKSGTVEOFW7/1qJeQqRxVC9rrJeQuojL9YVU8aGybHyM3tnuhMm1F+JrDxeKK1aZ9nlBGV+TlJ6kQc= X-Received: by 2002:a05:622a:1386:b0:463:95e2:71f8 with SMTP id d75a77b69052e-46a3d988318mr636711cf.15.1734569238560; Wed, 18 Dec 2024 16:47:18 -0800 (PST) MIME-Version: 1.0 References: <20241218161850.GG2354@noisy.programming.kicks-ass.net> <20241218174428.GQ2354@noisy.programming.kicks-ass.net> <20241218163557.1ce2d68cacd3d800c1fea1af@linux-foundation.org> In-Reply-To: <20241218163557.1ce2d68cacd3d800c1fea1af@linux-foundation.org> From: Suren Baghdasaryan Date: Wed, 18 Dec 2024 16:47:05 -0800 Message-ID: Subject: Re: [PATCH v6 10/16] mm: replace vm_lock and detached flag with a reference count To: Andrew Morton Cc: "Liam R. Howlett" , Peter Zijlstra , willy@infradead.org, lorenzo.stoakes@oracle.com, mhocko@suse.com, vbabka@suse.cz, hannes@cmpxchg.org, mjguzik@gmail.com, oliver.sang@intel.com, mgorman@techsingularity.net, david@redhat.com, peterx@redhat.com, oleg@redhat.com, dave@stgolabs.net, paulmck@kernel.org, brauner@kernel.org, dhowells@redhat.com, hdanton@sina.com, hughd@google.com, lokeshgidra@google.com, minchan@google.com, jannh@google.com, shakeel.butt@linux.dev, souravpanda@google.com, pasha.tatashin@soleen.com, klarasmodin@gmail.com, corbet@lwn.net, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, kernel-team@android.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 7D823A000C X-Stat-Signature: 96td4emaqntzx7nhzuqxjdk548tgwfwm X-Rspam-User: X-HE-Tag: 1734569216-127802 X-HE-Meta: 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 +5/rUf/P 5AsVocBfSkDBXJ3FMW+OdlTPVNzCdbq4wJ+Ftj3DFLgsygeGa5XoCQKqgRM3YrOHh8nD9PhIq8GYNoe7nurdcWIJby3a9zxE7Ypi5UDDnAqrHs5WA3OlfGbrYOYoPGY2x3COW2X4LpybQ3wPqTn5C8Z0rNcoW2LJnJAGPSkhaoiMxl4ZpdmgMc9FPiPLI4w3GS3/YZqULG5dNYMcIWBUWakbaUELoqiw26IKjTeo7T1RdxtI85iobZkPiGORz+Z+pwyfq+lKdBKekQaKKYbc/5vKAodW6sriPiDZ3mKUds0l2Ae8PZkqmtrjU4ZJev0wo6KUD X-Bogosity: Ham, tests=bogofilter, spamicity=0.337901, 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 Wed, Dec 18, 2024 at 4:36=E2=80=AFPM Andrew Morton wrote: > > On Wed, 18 Dec 2024 13:53:17 -0800 Suren Baghdasaryan = wrote: > > > > There is a loop for_each_vma_range() that does: > > > > > > vma_start_write(next); > > > mas_set(mas_detach, vms->mas_count++); > > > mas_store_gfp(mas_detach, next, GFP_KERNEL); > > > > Ah, ok I see now. I completely misunderstood what for_each_vma_range() > > was doing. > > I'll drop the v6 series from mm-unstable. Sounds good. v7 will be quite different.