blkparse: Handle cgroup information

[blktrace.git] / doc / blktrace.tex

diff --git a/doc/blktrace.tex b/doc/blktrace.tex
index 3647c7502142c3a32066c26c3f6f4a072bca8caa..836ac4a35f867019623b11411de50bdc409070dd 100644 (file)
--- a/doc/blktrace.tex
+++ b/doc/blktrace.tex
@@ -601,6 +601,9 @@ Specifier & \\ \hline\hline
 the event's device \\
          & (separated by a comma). \\ \hline
 \emph{e} & Error value \\ \hline
+\emph{g} & Cgroup identifier of the cgroup that generated the IO. Note that this requires
+appropriate \\
+         & kernel support (kernel version at least 4.14). \\ \hline
 \emph{m} & Minor number of event's device. \\ \hline
 \emph{M} & Major number of event's device. \\ \hline
 \emph{n} & Number of blocks \\ \hline