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b=Rk+6qLII7dhXKc90DR7x0yOEvODjOW/vGOClfgVuFKE3QWXEzLxdfMqDCeOj2aCQC Af7tFpcn1bA5YqBuP1vrNitK3sm7hW3KrYUEiQ3uUVlPgDiReiQJI+4PU5WchW6eKG /h6vzvh0y93wx4HdCp/Guuc6ZBoGwAMJ5nQwd9g2jF4j4MbCDnBXz63JsAb0YVujnH RPaDTnOSvsJkgMOZTcApLHzlog5soPtmuQGsnj9HF4Ql6o+0V30MAVN0BZ3P8otsW+ JyjsA3LXvuXmXdm+mAmvjC3CctniwC/hpFVHFmdzVIxYrqzOgGJawmQ9zcv0wDagWd vR1pv53KN6RGw== From: Andreas Hindborg To: Al Viro , linux-fsdevel@vger.kernel.org Cc: torvalds@linux-foundation.org, brauner@kernel.org, jack@suse.cz, raven@themaw.net, miklos@szeredi.hu, neil@brown.name, 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 Subject: Re: [PATCH v2 10/50] configfs, securityfs: kill_litter_super() not needed In-Reply-To: <20251028004614.393374-11-viro@zeniv.linux.org.uk> References: <20251028004614.393374-1-viro@zeniv.linux.org.uk> <20251028004614.393374-11-viro@zeniv.linux.org.uk> Date: Wed, 29 Oct 2025 07:18:29 +0100 Message-ID: <87v7jyfcy2.fsf@t14s.mail-host-address-is-not-set> MIME-Version: 1.0 Content-Type: text/plain X-Stat-Signature: o1eheh6386ekperufdzp41iihbbkbibd X-Rspamd-Queue-Id: DC1BC40005 X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1761718734-24513 X-HE-Meta: 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 a1f5XgL4 Xi6HpapuF/lHtQhbmPzHdVlGCFyOTJHJ6xf+2sW7EXJ/yvEL89zXKFa/nSXHYLI8RPHbT+scyCJeGM/lEoEDsLUznlRmWz41jECEGXc4JDDA1bSsVgToF73t7mjQoQUV+4zj+5WAlfMjzZW0HMAsvYTtkFKBJRTfn4317rOvbigkWqZ6pQKV30cCGuzep7DsBCI4MaNc64TETvZasStbhU2QjdETQ90u1GjyPlly1rql7sTymyIt+mKXNfsEIze3EUJy4sw03xbklpZaGIwQG3t9hOrPSTu+ajcQPv4q3Of0eYakczN395wkxEIIXq/Yjv/rnAVN1mr/Xz7IQLZ+mkoFmY/taZ/fGSE+t 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: "Al Viro" writes: > These are guaranteed to be empty by the time they are shut down; > both are single-instance and there is an internal mount maintained > for as long as there is any contents. > > Both have that internal mount pinned by every object in root. > > In other words, kill_litter_super() boils down to kill_anon_super() > for those. > > Reviewed-by: Joel Becker > Signed-off-by: Al Viro Acked-by: Andreas Hindborg (configfs) Best regards, Andreas Hindborg