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AJvYcCWLbCMhccJt7oCWZ+vpkkVvQz6R85hJ2Az5KntwF29AFU7S8xbMaf6MIBCYeU9SA5iAcvfdED9ZzQ==@kvack.org X-Gm-Message-State: AOJu0Yxt2/4wW6ytyHO5GtWsVF0SL1xQdBlzKmFBPNmOTV+48ERvdF6P zGlJxcsnzm0CMBoBk/9n9y6MxTM1KqK3N2sjyNABPiID2gmCaCvYpwsgFfbP6j/XclHNShLY4go vIb/4eucYLto7ozI9Tl7Is6h779c= X-Gm-Gg: ASbGnctUAcGqPHhbxW8misu4b8OO7+V5AiPbe9laC5nY3AUUaxhCIkvfy6ZZ+fAQ+Cs aBjGkvIIubkVJmbrV3RZjNAHt7i4fAc4C9nNb3fh6rmOnD52zJh/ZWg== X-Google-Smtp-Source: AGHT+IG/3C4uxYhlDydXBca+JI/Xt8S6sYqKKoiYlx43lXzEzNmrRuX5pPxWnMkdakyUd7hXz2SZE9fqz3vtN4LgBpI= X-Received: by 2002:a05:6000:2a3:b0:385:efc7:932d with SMTP id ffacd0b85a97d-38a8730faafmr28249900f8f.46.1736994225010; Wed, 15 Jan 2025 18:23:45 -0800 (PST) MIME-Version: 1.0 References: <20250115021746.34691-1-alexei.starovoitov@gmail.com> <20250115021746.34691-7-alexei.starovoitov@gmail.com> <422f3667-5048-4274-8aa5-e9ff19b6221e@suse.cz> In-Reply-To: <422f3667-5048-4274-8aa5-e9ff19b6221e@suse.cz> From: Alexei Starovoitov Date: Wed, 15 Jan 2025 18:23:31 -0800 X-Gm-Features: AbW1kvZ2EtZeHDb-In3isEjicXvQDjI-wxRCro1jO63eXmc0aPtUE8uI5DiC2t0 Message-ID: Subject: Re: [PATCH bpf-next v5 6/7] mm: Make failslab, kfence, kmemleak aware of trylock mode To: Vlastimil Babka Cc: bpf , Andrii Nakryiko , Kumar Kartikeya Dwivedi , Andrew Morton , Peter Zijlstra , Sebastian Sewior , Steven Rostedt , Hou Tao , Johannes Weiner , Shakeel Butt , Michal Hocko , Matthew Wilcox , Thomas Gleixner , Jann Horn , Tejun Heo , linux-mm , Kernel Team Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Stat-Signature: qp35njde1zd54zistfrdyoddcr5ke565 X-Rspam-User: X-Rspamd-Queue-Id: 7BF771A0006 X-Rspamd-Server: rspam03 X-HE-Tag: 1736994226-479943 X-HE-Meta: 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 f85VbJWU Hcoz6n7NVoZopo+iw8Nh51kzG1ZuBZ2KVM35TcgREqgunwh5UEog6+oujqmF2feo3/rZ4OSJ7WW34luZEtTyipbAqZGYVocv61kAUmdUc8vUv9jOzXgqSvh2CFkw4DBGq6lbcgbwIj0HYVZ1ohquR9w7m+gmAkaPNFlRMDrJx70jJEpk0DYcFOvg5eGDRDv7CnNXwq0hb47RaBNIp5vIw/GPMk0LPpimmkB5gwRUkVnlHsdqCW2HtYfisU2benjNkCQSqhhYwTSOWouS3M0pqahka3vkuQ7t8HoUTHT2kHI7aQ0qDONFyqoRQWSacOFi/fFtWUd2jXP/Pj+JPx2v/bmzpPaXO0wENrCEahI+bkAQylgHddfo1awDrsA== 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 Wed, Jan 15, 2025 at 9:57=E2=80=AFAM Vlastimil Babka wr= ote: > > On 1/15/25 03:17, Alexei Starovoitov wrote: > > From: Alexei Starovoitov > > > > When gfpflags_allow_spinning() =3D=3D false spin_locks cannot be taken. > > Make failslab, kfence, kmemleak compliant. > > > > Signed-off-by: Alexei Starovoitov > > All these are related to slab, so this would rather belong to a followup > series that expands the support from page allocator to slab, no? Sure. I can drop it for now. It was more of the preview of things to come. And how gfpflags_allow_spinning() fits in other places.