Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

plugins/inputs/linux_sysctl_fs/README.md

@@ -0,0 +1,56 @@
+# Linux Sysctl Filesystem Input Plugin
+
+This plugin gathers metrics by reading the [system filesystem][sysfs] files on
+[Linux][kernel] systems.
+
+⭐ Telegraf v1.24.0
+🏷️ system
+💻 linux
+
+[kernel]: https://kernel.org/
+[sysfs]: https://www.kernel.org/doc/Documentation/sysctl/fs.txt
+
+## Global configuration options <!-- @/docs/includes/plugin_config.md -->
+
+In addition to the plugin-specific configuration settings, plugins support
+additional global and plugin configuration settings. These settings are used to
+modify metrics, tags, and field or create aliases and configure ordering, etc.
+See the [CONFIGURATION.md][CONFIGURATION.md] for more details.
+
+[CONFIGURATION.md]: ../../../docs/CONFIGURATION.md#plugins
+
+## Configuration
+
+```toml @sample.conf
+# Provides Linux sysctl fs metrics
+[[inputs.linux_sysctl_fs]]
+  # no configuration
+```
+
+## Metrics
+
+`linux_sysctl_fs` metric:
+
+- tags: _none_
+- fields:
+  - `aio-max-nr` (unsigned integer)
+  - `aio-nr` (unsigned integer)
+  - `dentry-age-limit` (unsigned integer)
+  - `dentry-nr` (unsigned integer)
+  - `dentry-unused-nr` (unsigned integer)
+  - `dentry-want-pages` (unsigned integer)
+  - `dquot-max` (unsigned integer)
+  - `dquot-nr` (unsigned integer)
+  - `inode-free-nr` (unsigned integer)
+  - `inode-nr` (unsigned integer)
+  - `inode-preshrink-nr` (unsigned integer)
+  - `super-max` (unsigned integer)
+  - `super-nr` (unsigned integer)
+  - `file-max` (unsigned integer)
+  - `file-nr` (unsigned integer)
+
+## Example Output
+
+```text
+> linux_sysctl_fs,host=foo dentry-want-pages=0i,file-max=44222i,aio-max-nr=65536i,inode-preshrink-nr=0i,dentry-nr=64340i,dentry-unused-nr=55274i,file-nr=1568i,aio-nr=0i,inode-nr=35952i,inode-free-nr=12957i,dentry-age-limit=45i 1490982022000000000
+```