linux-kernel - [Patch 01/05]- Containers: Documentation on using containers

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Date:	Thu, 14 Sep 2006 18:38:33 -0700
From:	Rohit Seth <rohitseth@...gle.com>
To:	Andrew Morton <akpm@...l.org>
Cc:	devel@...nvz.org, CKRM-Tech <ckrm-tech@...ts.sourceforge.net>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: [Patch 01/05]- Containers: Documentation on using containers

This patch contains the Documentation for using containers.

Signed-off-by: Rohit Seth <rohitseth@...gle.com>
 
 Documentation/containers.txt |   42 ++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 42 insertions(+)

--- linux-2.6.18-rc6-mm2.org/Documentation/containers.txt	1969-12-31 16:00:00.000000000 -0800
+++ linux-2.6.18-rc6-mm2.ctn/Documentation/containers.txt	2006-09-14 17:13:48.000000000 -0700
@@ -0,0 +1,42 @@
+This file contains information about how to use containers.  Configfs support 
+is needed in kernel as the container's user interface is through configfs. So
+first enable CONFIG_CONFIGFS_FS and CONFIG_CONTAINERS and recompile the kernel.
+
+1- Mount a configfs (for example):
+	mount -t configfs none /mnt/configfs
+   This will create a /mnt/configfs mount point.
+
+2- As the support of containers is built into kernel, so the mount point
+   /mnt/configfs will automatically contain a directory "containers"
+
+3- Create a container by name test_container
+	cd /mnt/configfs/containers
+	mkdir test_container
+
+All the current implemented attributes in the kernel will show up in the
+directory /configfs/containers/test_container
+
+4- Add a task to container
+	cd /mnt/configfs/cotnainers/test_container
+	echo <pid> > addtask
+
+Now the <pid> and its subsequently forked children will belong to container
+test_container.
+
+5- Remove a task from container
+	echo <pid> rmtask
+
+6- Set a page limit for the container
+	echo some_number_of_pages > page_limit
+
+7- Read the id for the container
+	cat id
+
+8- Get the statistics for this container
+	cat num* (will print active pages, anon_pages, file_pages, num_files, 
+			and num_task)
+	cat *hits (will print page_limit_hits and task_limit_hits: the number
+		of times container has gone over page_limit and task_limit)
+9- Freeing a container
+	cd /mnt/configfs/containers/
+	rmdir test_container


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