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[209.85.208.41]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b6d853f97f7sm967179566b.51.2025.10.27.22.32.45 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 27 Oct 2025 22:32:45 -0700 (PDT) Received: by mail-ed1-f41.google.com with SMTP id 4fb4d7f45d1cf-63c09ff13aeso9547204a12.0 for ; Mon, 27 Oct 2025 22:32:45 -0700 (PDT) X-Forwarded-Encrypted: i=1; AJvYcCVkfuSQAPC+fab4M0uggv+t8h8Khtvkhb+9anaSt4QaHfShrXWeTes6FCGrQrJp7Dqits670G3kpQ==@kvack.org X-Received: by 2002:a05:6402:5346:20b0:63c:1e15:b9fb with SMTP id 4fb4d7f45d1cf-63ed84d11b8mr1725392a12.22.1761629565035; Mon, 27 Oct 2025 22:32:45 -0700 (PDT) MIME-Version: 1.0 References: <20251028004614.393374-1-viro@zeniv.linux.org.uk> <20251028004614.393374-32-viro@zeniv.linux.org.uk> <20251028015553.GM2441659@ZenIV> In-Reply-To: <20251028015553.GM2441659@ZenIV> From: Linus Torvalds Date: Mon, 27 Oct 2025 22:32:28 -0700 X-Gmail-Original-Message-ID: X-Gm-Features: AWmQ_bkREqIMu_f1B9dwguEOjRWmmtrQM-BuU5ACiXPx-fVfEkz6aAECfx6yPOQ Message-ID: Subject: Re: [PATCH v2 31/50] convert autofs To: Al Viro Cc: linux-fsdevel@vger.kernel.org, brauner@kernel.org, jack@suse.cz, raven@themaw.net, miklos@szeredi.hu, neil@brown.name, a.hindborg@kernel.org, linux-mm@kvack.org, linux-efi@vger.kernel.org, ocfs2-devel@lists.linux.dev, kees@kernel.org, rostedt@goodmis.org, gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, paul@paul-moore.com, casey@schaufler-ca.com, linuxppc-dev@lists.ozlabs.org, john.johansen@canonical.com, selinux@vger.kernel.org, borntraeger@linux.ibm.com, bpf@vger.kernel.org Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam01 X-Stat-Signature: xhnrdzu6dywxjnoqg3jic443rtafjrzh X-Rspam-User: X-Rspamd-Queue-Id: 0E5FD20005 X-HE-Tag: 1761629567-952905 X-HE-Meta: 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 ls0X2TM6 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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 Mon, 27 Oct 2025 at 18:55, Al Viro wrote: > > BTW, is there any reason why autofs_dir_unlink() does not update > ctime of the parent directory? An autofs 'rmdir' is really just an expire, isn't it? It doesn't really change anything in the parent, and a lookup will just reinstate the directory. So I'd go the other way, and say that the strange thing is that it changes mtime... That said, exactly *because* it changes mtime, I think the real answer is that none of this matters, and it's probably just an oversight, and it could easily go either way. Linus