Add documentation of 'D' discard operation

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

diff --git a/doc/blkparse.1 b/doc/blkparse.1
index 825ca36e1f208b7361dc250752185866b9a4fcf7..e97581cae08018d085615b9e44f25233cc1a70dc 100644 (file)
--- a/doc/blkparse.1
+++ b/doc/blkparse.1
@@ -391,9 +391,9 @@ Split
 
 .SH "RWBS DESCRIPTION"
 
-This is a small string containing at least one character ('R' for read, 'W' for
-write operation), and optionally either a 'B' (for barrier operations) or 'S' (for
-synchronous operations).
+This is a small string containing at least one character ('R' for read, 'W'
+for write, or 'D' for block discard operation), and optionally either
+a 'B' (for barrier operations) or 'S' (for synchronous operations).
 
 
 .SH "DEFAULT OUTPUT"

diff --git a/doc/blktrace.tex b/doc/blktrace.tex
index 82c35e8efb34fd09132da99ca8393d0cbade73c5..1e692404cbf808f60d3abd52a6a98ed5b2775ce8 100644 (file)
--- a/doc/blktrace.tex
+++ b/doc/blktrace.tex
@@ -645,8 +645,8 @@ X & Split \\ \hline
 
 \subsubsection{\label{sec:act-table}RWBS Description}
 This is a small string containing at least one character ('R' for read,
-'W' for write operation), and optionally either a 'B' (for barrier
-operations) or 'S' (for synchronous operations).
+'W' for write, or 'D' for block discard operation), and optionally either
+a 'B' (for barrier operations) or 'S' (for synchronous operations).
 
 \subsubsection{\label{sec:default-output}Default output}