blktrace: blkparse documentation update

Fixup for RH bugzilla 595615.

Document blkparse options:
-A, --set-mask,
-a, --act-mask,
-D. --input-directory

Signed-off-by: Edward Shishkin <edward@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

2 files changed, 22 insertions, 0 deletions

diff --git a/blkparse.c b/blkparse.c
index ffad9b6..da34c14 100644
--- a/blkparse.c
+++ b/blkparse.c
@@ -2680,6 +2680,8 @@ static char usage_str[] =    "\n\n" \
 	"[ -M                | --no-msgs\n" \
 	"[ -v                | --verbose ]\n" \
 	"[ -V                | --version ]\n\n" \
+	"\t-a Only trace specified actions. See documentation\n" \
+	"\t-A Give trace mask as a single value. See documentation\n" \
 	"\t-b stdin read batching\n" \
 	"\t-d Output file. If specified, binary data is written to file\n" \
 	"\t-D Directory to prepend to input file names\n" \
diff --git a/doc/blkparse.1 b/doc/blkparse.1
index 11dab65..9193dbe 100644
--- a/doc/blkparse.1
+++ b/doc/blkparse.1
@@ -58,6 +58,26 @@ option.
 
 
 .SH OPTIONS
+\-A \fIhex-mask\fR
+.br
+\-\-set-mask=\fIhex-mask\fR
+.RS
+Set filter mask to \fIhex-mask\fR, see blktrace (8) for masks
+.RE
+
+\-a \fImask\fR
+.br
+\-\-act-mask=\fImask\fR
+.RS
+Add \fImask\fR to current filter, see blktrace (8) for masks
+.RE
+
+\-D \fIdir\fR
+.br
+\-\-input-directory=\fIdir\fR
+.RS
+Prepend \fIdir\fR to input file names
+.RE
 
 \-b \fIbatch\fR
 .br