2 files changed, 83 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-fs-ext4 b/Documentation/ABI/testing/sysfs-fs-ext4
index 4e79074de282..5fb709997d96 100644
--- a/Documentation/ABI/testing/sysfs-fs-ext4
+++ b/Documentation/ABI/testing/sysfs-fs-ext4
@@ -79,3 +79,13 @@ Description:
                 This file is read-only and shows the number of
                 kilobytes of data that have been written to this
                 filesystem since it was mounted.
+
+What:           /sys/fs/ext4/<disk>/inode_goal
+Date:           June 2008
+Contact:        "Theodore Ts'o" <tytso@mit.edu>
+Description:
+                Tuning parameter which (if non-zero) controls the goal
+                inode used by the inode allocator in p0reference to
+                all other allocation hueristics.  This is intended for
+                debugging use only, and should be 0 on production
+                systems.
diff --git a/Documentation/ABI/testing/sysfs-pps b/Documentation/ABI/testing/sysfs-pps
new file mode 100644
index 000000000000..25028c7bc37d
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-pps
@@ -0,0 +1,73 @@
+What:           /sys/class/pps/
+Date:           February 2008
+Contact:        Rodolfo Giometti <giometti@linux.it>
+Description:
+                The /sys/class/pps/ directory will contain files and
+                directories that will provide a unified interface to
+                the PPS sources.
+
+What:           /sys/class/pps/ppsX/
+Date:           February 2008
+Contact:        Rodolfo Giometti <giometti@linux.it>
+Description:
+                The /sys/class/pps/ppsX/ directory is related to X-th
+                PPS source into the system. Each directory will
+                contain files to manage and control its PPS source.
+
+What:           /sys/class/pps/ppsX/assert
+Date:           February 2008
+Contact:        Rodolfo Giometti <giometti@linux.it>
+Description:
+                The /sys/class/pps/ppsX/assert file reports the assert events
+                and the assert sequence number of the X-th source in the form:
+
+                        <secs>.<nsec>#<sequence>
+
+                If the source has no assert events the content of this file
+                is empty.
+
+What:           /sys/class/pps/ppsX/clear
+Date:           February 2008
+Contact:        Rodolfo Giometti <giometti@linux.it>
+Description:
+                The /sys/class/pps/ppsX/clear file reports the clear events
+                and the clear sequence number of the X-th source in the form:
+
+                        <secs>.<nsec>#<sequence>
+
+                If the source has no clear events the content of this file
+                is empty.
+
+What:           /sys/class/pps/ppsX/mode
+Date:           February 2008
+Contact:        Rodolfo Giometti <giometti@linux.it>
+Description:
+                The /sys/class/pps/ppsX/mode file reports the functioning
+                mode of the X-th source in hexadecimal encoding.
+
+                Please, refer to linux/include/linux/pps.h for further
+                info.
+
+What:           /sys/class/pps/ppsX/echo
+Date:           February 2008
+Contact:        Rodolfo Giometti <giometti@linux.it>
+Description:
+                The /sys/class/pps/ppsX/echo file reports if the X-th does
+                or does not support an "echo" function.
+
+What:           /sys/class/pps/ppsX/name
+Date:           February 2008
+Contact:        Rodolfo Giometti <giometti@linux.it>
+Description:
+                The /sys/class/pps/ppsX/name file reports the name of the
+                X-th source.
+
+What:           /sys/class/pps/ppsX/path
+Date:           February 2008
+Contact:        Rodolfo Giometti <giometti@linux.it>
+Description:
+                The /sys/class/pps/ppsX/path file reports the path name of
+                the device connected with the X-th source.
+
+                If the source is not connected with any device the content
+                of this file is empty.