Autodetect cgroup blkio mount point

[fio.git] / fio.1

diff --git a/fio.1 b/fio.1
index 648b4e9c6d73fb3c040aed3167e8d925a98e1e17..2e0a283d527b9dffeca64221fcbf359e3a892670 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -725,18 +725,12 @@ entering the kernel with a gettimeofday() call. The CPU set aside for doing
 these time calls will be excluded from other uses. Fio will manually clear it
 from the CPU mask of other jobs.
 .TP
 these time calls will be excluded from other uses. Fio will manually clear it
 from the CPU mask of other jobs.
 .TP

-.BI cgroup_root \fR=\fPstr
-Root of the mounted blkio cgroup file systems. This is a Linux
-specific IO controller. If your system doesn't have it mounted,
-you can do so with:
-
-# mount -t cgroup -o blkio none /cgroup
-
-The cgroup_root defaults to /cgroup, if mounted elsewhere please specify this
-option.
-.TP

 .BI cgroup \fR=\fPstr
 Add job to this control group. If it doesn't exist, it will be created.
 .BI cgroup \fR=\fPstr
 Add job to this control group. If it doesn't exist, it will be created.

+The system must have a mounted cgroup blkio mount point for this to work. If
+your system doesn't have it mounted, you can do so with:
+
+# mount -t cgroup -o blkio none /cgroup

 .TP
 .BI cgroup_weight \fR=\fPint
 Set the weight of the cgroup to this value. See the documentation that comes
 .TP
 .BI cgroup_weight \fR=\fPint
 Set the weight of the cgroup to this value. See the documentation that comes