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[209.85.128.179]) by smtp.gmail.com with ESMTPSA id n185-20020a0dfdc2000000b005cb1bf4d466sm12266687ywf.82.2024.01.02.06.47.23 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 02 Jan 2024 06:47:23 -0800 (PST) Received: by mail-yw1-f179.google.com with SMTP id 00721157ae682-5e7bb1e0db8so73378317b3.0 for ; Tue, 02 Jan 2024 06:47:23 -0800 (PST) X-Received: by 2002:a0d:f6c2:0:b0:5e2:5d71:56c with SMTP id g185-20020a0df6c2000000b005e25d71056cmr12772287ywf.32.1704206843051; Tue, 02 Jan 2024 06:47:23 -0800 (PST) MIME-Version: 1.0 References: <20231223181101.1954-1-gregory.price@memverge.com> <20231223181101.1954-11-gregory.price@memverge.com> In-Reply-To: <20231223181101.1954-11-gregory.price@memverge.com> From: Geert Uytterhoeven Date: Tue, 2 Jan 2024 15:47:12 +0100 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v5 10/11] mm/mempolicy: add the mbind2 syscall To: Gregory Price Cc: linux-mm@kvack.org, linux-doc@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-api@vger.kernel.org, x86@kernel.org, akpm@linux-foundation.org, arnd@arndb.de, tglx@linutronix.de, luto@kernel.org, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, mhocko@kernel.org, tj@kernel.org, ying.huang@intel.com, gregory.price@memverge.com, corbet@lwn.net, rakie.kim@sk.com, hyeongtak.ji@sk.com, honggyu.kim@sk.com, vtavarespetr@micron.com, peterz@infradead.org, jgroves@micron.com, ravis.opensrc@micron.com, sthanneeru@micron.com, emirakhur@micron.com, Hasan.Maruf@amd.com, seungjun.ha@samsung.com, Michal Hocko , Frank van der Linden Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: B6E2280012 X-Rspam-User: X-Rspamd-Server: rspam04 X-Stat-Signature: 3r8d7iqd37aa8efye4gysbpfa85ckb5t X-HE-Tag: 1704206844-455634 X-HE-Meta: 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 wZr2xIhO 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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 Sat, Dec 23, 2023 at 7:14=E2=80=AFPM Gregory Price wrote: > mbind2 is an extensible mbind interface which allows a user to > set the mempolicy for one or more address ranges. > > Defined as: > > mbind2(unsigned long addr, unsigned long len, struct mpol_args *args, > size_t size, unsigned long flags) > > addr: address of the memory range to operate on > len: length of the memory range > flags: MPOL_MF_HOME_NODE + original mbind() flags > > Input values include the following fields of mpol_args: > > mode: The MPOL_* policy (DEFAULT, INTERLEAVE, etc.) > mode_flags: The MPOL_F_* flags that were previously passed in or'd > into the mode. This was split to hopefully allow future > extensions additional mode/flag space. > home_node: if (flags & MPOL_MF_HOME_NODE), set home node of policy > to this otherwise it is ignored. > pol_maxnodes: The max number of nodes described by pol_nodes > pol_nodes: the nodemask to apply for the memory policy > > The semantics are otherwise the same as mbind(), except that > the home_node can be set. > > Suggested-by: Michal Hocko > Suggested-by: Frank van der Linden > Suggested-by: Vinicius Tavares Petrucci > Suggested-by: Rakie Kim > Suggested-by: Hyeongtak Ji > Suggested-by: Honggyu Kim > Signed-off-by: Gregory Price > Co-developed-by: Vinicius Tavares Petrucci > arch/m68k/kernel/syscalls/syscall.tbl | 1 + Acked-by: Geert Uytterhoeven Gr{oetje,eeting}s, Geert --=20 Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k= .org In personal conversations with technical people, I call myself a hacker. Bu= t when I'm talking to journalists I just say "programmer" or something like t= hat. -- Linus Torvalds