From: Mauricio Faria de Oliveira <mfo@igalia.com>
To: Kees Cook <kees@kernel.org>,
Joel Granados <joel.granados@kernel.org>,
Nathan Chancellor <nathan@kernel.org>,
Nicolas Schier <nsc@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>,
Paolo Abeni <pabeni@redhat.com>, Simon Horman <horms@kernel.org>
Cc: kernel-dev@igalia.com, linux-riscv@lists.infradead.org,
linux-kernel@vger.kernel.org, fsverity@lists.linux.dev,
keyrings@vger.kernel.org, bpf@vger.kernel.org,
linux-fsdevel@vger.kernel.org, linux-kbuild@vger.kernel.org,
netdev@vger.kernel.org, linux-wpan@vger.kernel.org,
lvs-devel@vger.kernel.org, netfilter-devel@vger.kernel.org,
coreteam@netfilter.org, linux-sctp@vger.kernel.org,
linux-rdma@vger.kernel.org, linux-s390@vger.kernel.org,
bridge@lists.linux.dev, mptcp@lists.linux.dev,
rds-devel@oss.oracle.com, virtualization@lists.linux.dev,
Mauricio Faria de Oliveira <mfo@igalia.com>
Subject: [PATCH RFC v2 02/13] proc: add config option SYSCTL_MODULE_ALIASES
Date: Tue, 18 Aug 2026 23:28:01 -0300 [thread overview]
Message-ID: <20260818-sysctl-module-aliases-v2-2-d5a69dae5798@igalia.com> (raw)
In-Reply-To: <20260818-sysctl-module-aliases-v2-0-d5a69dae5798@igalia.com>
Add a config option for the 'sysctl:' module aliases feature.
Signed-off-by: Mauricio Faria de Oliveira <mfo@igalia.com>
---
fs/proc/Kconfig | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/fs/proc/Kconfig b/fs/proc/Kconfig
index 24f5a36f45df8b1d6831a0f4011c1f6b1987cb52..e6591ec4bcf0ab2ad96ca7dc90b831b2f9873ac2 100644
--- a/fs/proc/Kconfig
+++ b/fs/proc/Kconfig
@@ -98,6 +98,19 @@ config SYSCTL
building a kernel for install/rescue disks or your system is very
limited in memory.
+config SYSCTL_MODULE_ALIASES
+ bool "'sysctl:' module aliases (EXPERIMENTAL)"
+ depends on SYSCTL && MODULES
+ default n
+ help
+ The /proc/sys files registered by a module do not exist until the
+ module is loaded; meanwhile, userspace cannot find or access them.
+
+ This options adds 'sysctl:*/<path>/<file>' module aliases for the
+ /proc/sys files registered by modules, so modules for nonexistent
+ files can be loaded with 'modprobe sysctl:/proc/sys/<path>/<file>'
+ by userspace when needed.
+
config PROC_PAGE_MONITOR
default y
depends on PROC_FS && MMU
--
2.47.3
next prev parent reply other threads:[~2026-08-19 2:29 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-19 2:27 [PATCH RFC v2 00/13] sysctl: add module aliases Mauricio Faria de Oliveira
2026-08-19 2:28 ` [PATCH RFC v2 01/13] keys, pidns, fs/verity, riscv/vector: reorder '#include <linux/sysctl.h>' Mauricio Faria de Oliveira
2026-08-19 2:28 ` Mauricio Faria de Oliveira [this message]
2026-08-19 2:28 ` [PATCH RFC v2 03/13] sysctl, mod_devicetable: add macro MODULE_SYSCTL_TABLE Mauricio Faria de Oliveira
2026-08-19 2:28 ` [PATCH RFC v2 04/13] sysctl: add register_sysctl() wrapper for MODULE_SYSCTL_TABLE Mauricio Faria de Oliveira
2026-08-19 2:28 ` [PATCH RFC v2 05/13] sysctl, parport: update register_sysctl() callers with template arguments Mauricio Faria de Oliveira
2026-08-19 2:28 ` [PATCH RFC v2 06/13] sysctl, net: add register_net_sysctl{_sz}() wrappers for MODULE_SYSCTL_TABLE Mauricio Faria de Oliveira
2026-08-19 2:28 ` [PATCH RFC v2 07/13] sysctl, net: update register_net_sysctl{_sz}() callers with template arguments Mauricio Faria de Oliveira
2026-08-19 2:28 ` [PATCH RFC v2 08/13] sysctl, net: update register_net_sysctl_sz(ARRAY_SIZE(table_tmpl)) " Mauricio Faria de Oliveira
2026-08-19 2:28 ` [PATCH RFC v2 09/13] sysctl, ipv6: update register_net_sysctl{_sz}() callers " Mauricio Faria de Oliveira
2026-08-19 2:28 ` [PATCH RFC v2 10/13] sysctl, net: update register_net_sysctl_sz() edge case Mauricio Faria de Oliveira
2026-08-19 2:28 ` [PATCH RFC v2 11/13] sysctl: unrandomize struct ctl_table.procname Mauricio Faria de Oliveira
2026-08-19 2:28 ` [PATCH RFC v2 12/13] modpost: move addend_*_rel() calls into addend_rel() Mauricio Faria de Oliveira
2026-08-19 2:28 ` [PATCH RFC v2 13/13] modpost: handle MODULE_SYSCTL_TABLE symbols Mauricio Faria de Oliveira
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