[PATCH] Add kernel<->userspace ABI stability documentation

Signed-off-by: Kay Sievers <kay.sievers@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2 files changed, 40 insertions, 0 deletions

diff --git a/Documentation/ABI/stable/syscalls b/Documentation/ABI/stable/syscalls
new file mode 100644
index 000000000000..c3ae3e7d6a0c
--- /dev/null
+++ b/Documentation/ABI/stable/syscalls
@@ -0,0 +1,10 @@
+What:           The kernel syscall interface
+Description:
+        This interface matches much of the POSIX interface and is based
+        on it and other Unix based interfaces.  It will only be added to
+        over time, and not have things removed from it.
+
+        Note that this interface is different for every architecture
+        that Linux supports.  Please see the architecture-specific
+        documentation for details on the syscall numbers that are to be
+        mapped to each syscall.
diff --git a/Documentation/ABI/stable/sysfs-module b/Documentation/ABI/stable/sysfs-module
new file mode 100644
index 000000000000..75be43118335
--- /dev/null
+++ b/Documentation/ABI/stable/sysfs-module
@@ -0,0 +1,30 @@
+What:           /sys/module
+Description:
+        The /sys/module tree consists of the following structure:
+
+        /sys/module/MODULENAME
+                The name of the module that is in the kernel.  This
+                module name will show up either if the module is built
+                directly into the kernel, or if it is loaded as a
+                dyanmic module.
+
+        /sys/module/MODULENAME/parameters
+                This directory contains individual files that are each
+                individual parameters of the module that are able to be
+                changed at runtime.  See the individual module
+                documentation as to the contents of these parameters and
+                what they accomplish.
+
+                Note: The individual parameter names and values are not
+                considered stable, only the fact that they will be
+                placed in this location within sysfs.  See the
+                individual driver documentation for details as to the
+                stability of the different parameters.
+
+        /sys/module/MODULENAME/refcnt
+                If the module is able to be unloaded from the kernel, this file
+                will contain the current reference count of the module.
+
+                Note: If the module is built into the kernel, or if the
+                CONFIG_MODULE_UNLOAD kernel configuration value is not enabled,
+                this file will not be present.