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[209.85.218.53]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b72bf4fbd8csm924158566b.24.2025.11.09.14.42.14 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 09 Nov 2025 14:42:16 -0800 (PST) Received: by mail-ej1-f53.google.com with SMTP id a640c23a62f3a-b7291af7190so359269866b.3 for ; Sun, 09 Nov 2025 14:42:14 -0800 (PST) X-Forwarded-Encrypted: i=1; AJvYcCUw4kMyuBudCHEIzykyhnb/6snTMrG8ZvfE2L48LV8bA1DsdWl5+Nd3IvPWnlB2SCPDMHGhnGVhwA==@vger.kernel.org X-Received: by 2002:a17:907:7246:b0:b72:5e29:5084 with SMTP id a640c23a62f3a-b72e02729dfmr660861066b.4.1762728134438; Sun, 09 Nov 2025 14:42:14 -0800 (PST) Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20251109063745.2089578-1-viro@zeniv.linux.org.uk> <20251109063745.2089578-11-viro@zeniv.linux.org.uk> In-Reply-To: From: Linus Torvalds Date: Sun, 9 Nov 2025 14:41:58 -0800 X-Gmail-Original-Message-ID: X-Gm-Features: AWmQ_bk5CNTgXVq9Wj4DrVDvXfYphjsw9So7wK98LkhJD7EILYp-AjhoG9v3pfw Message-ID: Subject: Re: [RFC][PATCH 10/13] get rid of audit_reusename() To: Mateusz Guzik Cc: Al Viro , linux-fsdevel@vger.kernel.org, brauner@kernel.org, jack@suse.cz, paul@paul-moore.com, axboe@kernel.dk, audit@vger.kernel.org, io-uring@vger.kernel.org Content-Type: text/plain; charset="UTF-8" On Sun, 9 Nov 2025 at 14:33, Mateusz Guzik wrote: > > The programs which pass in these "too long" names just keep doing it, Sure. So what? We optimize for the common case. Sure, there's an extra SMAP sequence for people using longer names, but while those SMAP things are costly compared to individual instructions, they aren't costly in the *big* picture. They are a pipeline stall, not some kind of horrendous thing. It would be *more* expensive to try to keep statistics than it is to just say "long pathnames are more expensive than short ones". Linus