Apply a new rule to 'cgexec' command.

Hi,

Changelog of v6:
================
 * No change.

Changelog of v5:
================
 * Add the description of a new option "--sticky".

Changelog of v4:
================
 * Add a new option "--sticky" so that cgrulesengd daemon does not change
   the children's cgroups which is executed by 'cgexec' command.

Changelog of v3:
================
 * Set a SETUID to "cgexec" command file.
 * An euid is changed to the executing user from a root user.

Changelog of v2:
================
 * New patch.

Description:
============
This patch applies a new rule to 'cgexec' command.

cgroup_register_unchanged_process() is called so that cgrulesengd
daemon does not change the cgroup of a process, which is executed
by 'cgexec' command.
And cgroup_change_cgroup_flags() is called for applying a new rule.

Thanks
Ken'ichi Ohmichi

Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp>
Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>

1 files changed, 10 insertions, 1 deletions

diff --git a/doc/man/cgexec.1 b/doc/man/cgexec.1
index ca963f0..2ab6fd6 100644
--- a/doc/man/cgexec.1
+++ b/doc/man/cgexec.1
@@ -7,7 +7,7 @@
 cgexec \- run the task in given control groups
 
 .SH SYNOPSIS
-\fBcgexec\fR [\fB-g\fR <\fIcontrollers>:<path\fR>] \fBcommand\fR [\fIarguments\fR]
+\fBcgexec\fR [\fB-g\fR <\fIcontrollers>:<path\fR>] [--sticky] \fBcommand\fR [\fIarguments\fR]
 
 .SH DESCRIPTION
 The \fBcgexec\fR
@@ -31,6 +31,15 @@ If this option is not used then
 \fBcgexec\fR will automatically place the task to the right
 cgroup based on \fB/etc/cgrules.conf\fR.
 
+.TP
+.B --sticky
+If running the task \fBcommand\fR with this option, the daemon of
+service cgred (cgrulesengd process) does not change both the task
+of the \fBcommand\fR and the children tasks. Without this option,
+the daemon does not change the task of the \fBcommand\fR but it
+changes the children tasks to the right cgroup based on
+\fB/etc/cgrules.conf\fR automatically.
+
 .LP
 
 .SH EXAMPLES