Enhanced partition statistics: documentation update
Update the documentation to reflect the change in userspace interface.
Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/Documentation/ABI/testing/sysfs-block b/Documentation/ABI/testing/sysfs-block
new file mode 100644
index 0000000..4bd9ea5
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-block
@@ -0,0 +1,28 @@
+What: /sys/block/<disk>/stat
+Date: February 2008
+Contact: Jerome Marchand <jmarchan@redhat.com>
+Description:
+ The /sys/block/<disk>/stat files displays the I/O
+ statistics of disk <disk>. They contain 11 fields:
+ 1 - reads completed succesfully
+ 2 - reads merged
+ 3 - sectors read
+ 4 - time spent reading (ms)
+ 5 - writes completed
+ 6 - writes merged
+ 7 - sectors written
+ 8 - time spent writing (ms)
+ 9 - I/Os currently in progress
+ 10 - time spent doing I/Os (ms)
+ 11 - weighted time spent doing I/Os (ms)
+ For more details refer Documentation/iostats.txt
+
+
+What: /sys/block/<disk>/<part>/stat
+Date: February 2008
+Contact: Jerome Marchand <jmarchan@redhat.com>
+Description:
+ The /sys/block/<disk>/<part>/stat files display the
+ I/O statistics of partition <part>. The format is the
+ same as the above-written /sys/block/<disk>/stat
+ format.