First, blkparse was internally called in quiet mode by default.
v0.99.1 commit eea01dfc2e0e ("[PATCH] btrace: don't be quiet by default,
and fix -h parameter") changed the default.
v1.0.1 commit bc93336f08a3 ("fix up btrace options & manpage")
removed the no longer functional -S option.
Simply surface -q option of blkparse for use in btrace to suppress stats.
Otherwise it keeps printing stats by default.
Signed-off-by: Steffen Maier <maier@xxxxxxxxxxxxx>
---
btrace | 5 +++--
doc/blktrace.tex | 2 ++
doc/btrace.8 | 6 +++++-
3 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/btrace b/btrace
index 44401823aa61..e260b91ff081 100644
--- a/btrace
+++ b/btrace
@@ -8,10 +8,10 @@
TRACEOPTS=""
PARSEOPTS="-b100000"
-USAGE="Usage: btrace [-s] [-t] [-h] [-v] [-w N] [-n N] [-b N] [-a <trace>...] [-r <dbg mnt>] <dev>..."
+USAGE="Usage: btrace [-s] [-t] [-h] [-v] [-q] [-w N] [-n N] [-b N] [-a <trace>...] [-r <dbg mnt>] <dev>..."
DIRNAME=`dirname $0`
-while getopts "a:w:n:b:r:sthv" c
+while getopts "a:w:n:b:r:sthvq" c
do
case $c in
a) TRACEOPTS=$TRACEOPTS" -a "$OPTARG" ";;
@@ -23,6 +23,7 @@ do
t) PARSEOPTS=$PARSEOPTS" -t";;
h) PARSEOPTS=$PARSEOPTS" -h";;
v) PARSEOPTS=$PARSEOPTS" -v";;
+ q) PARSEOPTS=$PARSEOPTS" -q";;
\?) echo $USAGE 1>&2
exit 2
;;
diff --git a/doc/blktrace.tex b/doc/blktrace.tex
index b5fc769ab891..aad19e2ff38d 100644
--- a/doc/blktrace.tex
+++ b/doc/blktrace.tex
@@ -222,6 +222,8 @@ default\footnote{blktrace v0.99.1 eea01dfc2e0e (``[PATCH] btrace:
don't be quiet by default, and fix -h parameter'')} and the
\emph{-S} option does not exist any more\footnote{blktrace v1.0.1
bc93336f08a3 (``fix up btrace options \& manpage'')}.
+An inverse quiet option \emph{-q} allows to toggle off statistics\footnote{
+ blktrace newer than 1.2.0}.
\subsection{blktrace -- SCSI commands}
\label{sec:pc-blktrace}
diff --git a/doc/btrace.8 b/doc/btrace.8
index dc08e3608f1d..833cf9bf3596 100644
--- a/doc/btrace.8
+++ b/doc/btrace.8
@@ -6,7 +6,7 @@ btrace \- perform live tracing for block devices
.SH SYNOPSIS
-.B btrace [\-s] [\-t] [\-h] [\-v] [\-w \fIN\fN] [\-n \fIN\fR] [\-b \fIN\fR] [\-r \fI<dbg mnt>\fR] [\-a <\fItrace\fR>...] <\fIdev\fR>...
+.B btrace [\-s] [\-t] [\-h] [\-v] [\-q] [\-w \fIN\fN] [\-n \fIN\fR] [\-b \fIN\fR] [\-r \fI<dbg mnt>\fR] [\-a <\fItrace\fR>...] <\fIdev\fR>...
.br
@@ -35,6 +35,10 @@ Hash processes by name, not PID (see \fIblkparse\fR (1)).
.B \-v
Be more verbose for marginal errors (see \fIblkparse\fR (1)).
+.HP 4
+.B \-q
+Do not print any statistics at end of trace (see \fIblkparse\fR (1)).
+
.HP 4
.B \-w \fIN\fR
Sets run time to the number of seconds specified (see \fIblktrace\fR (8)).
--
2.14.2
--
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