The patch titled
Memory controller: containers setup
has been added to the -mm tree. Its filename is
memory-controller-containers-setup-v7.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: Memory controller: containers setup
From: Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx>
Setup the memory container and add basic hooks and controls to integrate
and work with the container.
Signed-off-by: Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx>
Cc: Pavel Emelianov <xemul@xxxxxxxxxx>
Cc: Paul Menage <menage@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Cc: Nick Piggin <nickpiggin@xxxxxxxxxxxx>
Cc: Kirill Korotaev <dev@xxxxx>
Cc: Herbert Poetzl <herbert@xxxxxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Vaidyanathan Srinivasan <svaidy@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/container_subsys.h | 6 +
include/linux/memcontrol.h | 21 ++++
init/Kconfig | 7 +
mm/Makefile | 1
mm/memcontrol.c | 127 +++++++++++++++++++++++++++++
5 files changed, 162 insertions(+)
diff -puN include/linux/container_subsys.h~memory-controller-containers-setup-v7 include/linux/container_subsys.h
--- a/include/linux/container_subsys.h~memory-controller-containers-setup-v7
+++ a/include/linux/container_subsys.h
@@ -30,3 +30,9 @@ SUBSYS(ns)
#endif
/* */
+
+#ifdef CONFIG_CONTAINER_MEM_CONT
+SUBSYS(mem_container)
+#endif
+
+/* */
diff -puN /dev/null include/linux/memcontrol.h
--- /dev/null
+++ a/include/linux/memcontrol.h
@@ -0,0 +1,21 @@
+/* memcontrol.h - Memory Controller
+ *
+ * Copyright IBM Corporation, 2007
+ * Author Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _LINUX_MEMCONTROL_H
+#define _LINUX_MEMCONTROL_H
+
+#endif /* _LINUX_MEMCONTROL_H */
+
diff -puN init/Kconfig~memory-controller-containers-setup-v7 init/Kconfig
--- a/init/Kconfig~memory-controller-containers-setup-v7
+++ a/init/Kconfig
@@ -368,6 +368,13 @@ config SYSFS_DEPRECATED
If you are using a distro that was released in 2006 or later,
it should be safe to say N here.
+config CONTAINER_MEM_CONT
+ bool "Memory controller for containers"
+ depends on CONTAINERS && RESOURCE_COUNTERS
+ help
+ Provides a memory controller that manages both page cache and
+ RSS memory.
+
config PROC_PID_CPUSET
bool "Include legacy /proc/<pid>/cpuset file"
depends on CPUSETS
diff -puN mm/Makefile~memory-controller-containers-setup-v7 mm/Makefile
--- a/mm/Makefile~memory-controller-containers-setup-v7
+++ a/mm/Makefile
@@ -31,4 +31,5 @@ obj-$(CONFIG_FS_XIP) += filemap_xip.o
obj-$(CONFIG_MIGRATION) += migrate.o
obj-$(CONFIG_SMP) += allocpercpu.o
obj-$(CONFIG_QUICKLIST) += quicklist.o
+obj-$(CONFIG_CONTAINER_MEM_CONT) += memcontrol.o
diff -puN /dev/null mm/memcontrol.c
--- /dev/null
+++ a/mm/memcontrol.c
@@ -0,0 +1,127 @@
+/* memcontrol.c - Memory Controller
+ *
+ * Copyright IBM Corporation, 2007
+ * Author Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/res_counter.h>
+#include <linux/memcontrol.h>
+#include <linux/container.h>
+
+struct container_subsys mem_container_subsys;
+
+/*
+ * The memory controller data structure. The memory controller controls both
+ * page cache and RSS per container. We would eventually like to provide
+ * statistics based on the statistics developed by Rik Van Riel for clock-pro,
+ * to help the administrator determine what knobs to tune.
+ *
+ * TODO: Add a water mark for the memory controller. Reclaim will begin when
+ * we hit the water mark.
+ */
+struct mem_container {
+ struct container_subsys_state css;
+ /*
+ * the counter to account for memory usage
+ */
+ struct res_counter res;
+};
+
+/*
+ * A page_container page is associated with every page descriptor. The
+ * page_container helps us identify information about the container
+ */
+struct page_container {
+ struct list_head lru; /* per container LRU list */
+ struct page *page;
+ struct mem_container *mem_container;
+};
+
+
+static inline
+struct mem_container *mem_container_from_cont(struct container *cont)
+{
+ return container_of(container_subsys_state(cont,
+ mem_container_subsys_id), struct mem_container,
+ css);
+}
+
+static ssize_t mem_container_read(struct container *cont, struct cftype *cft,
+ struct file *file, char __user *userbuf, size_t nbytes,
+ loff_t *ppos)
+{
+ return res_counter_read(&mem_container_from_cont(cont)->res,
+ cft->private, userbuf, nbytes, ppos);
+}
+
+static ssize_t mem_container_write(struct container *cont, struct cftype *cft,
+ struct file *file, const char __user *userbuf,
+ size_t nbytes, loff_t *ppos)
+{
+ return res_counter_write(&mem_container_from_cont(cont)->res,
+ cft->private, userbuf, nbytes, ppos);
+}
+
+static struct cftype mem_container_files[] = {
+ {
+ .name = "usage",
+ .private = RES_USAGE,
+ .read = mem_container_read,
+ },
+ {
+ .name = "limit",
+ .private = RES_LIMIT,
+ .write = mem_container_write,
+ .read = mem_container_read,
+ },
+ {
+ .name = "failcnt",
+ .private = RES_FAILCNT,
+ .read = mem_container_read,
+ },
+};
+
+static struct container_subsys_state *
+mem_container_create(struct container_subsys *ss, struct container *cont)
+{
+ struct mem_container *mem;
+
+ mem = kzalloc(sizeof(struct mem_container), GFP_KERNEL);
+ if (!mem)
+ return -ENOMEM;
+
+ res_counter_init(&mem->res);
+ return &mem->css;
+}
+
+static void mem_container_destroy(struct container_subsys *ss,
+ struct container *cont)
+{
+ kfree(mem_container_from_cont(cont));
+}
+
+static int mem_container_populate(struct container_subsys *ss,
+ struct container *cont)
+{
+ return container_add_files(cont, ss, mem_container_files,
+ ARRAY_SIZE(mem_container_files));
+}
+
+struct container_subsys mem_container_subsys = {
+ .name = "memory",
+ .subsys_id = mem_container_subsys_id,
+ .create = mem_container_create,
+ .destroy = mem_container_destroy,
+ .populate = mem_container_populate,
+ .early_init = 0,
+};
_
Patches currently in -mm which might be from balbir@xxxxxxxxxxxxxxxxxx are
origin.patch
memoryless-nodes-fixup-uses-of-node_online_map-in-generic-code-fix.patch
clean-up-duplicate-includes-in-documentation.patch
add-containerstats-v3.patch
add-containerstats-v3-fix.patch
memory-controller-add-documentation.patch
memory-controller-resource-counters-v7.patch
memory-controller-containers-setup-v7.patch
memory-controller-accounting-setup-v7.patch
memory-controller-memory-accounting-v7.patch
memory-controller-task-migration-v7.patch
memory-controller-add-per-container-lru-and-reclaim-v7.patch
memory-controller-oom-handling-v7.patch
memory-controller-add-switch-to-control-what-type-of-pages-to-limit-v7.patch
memory-controller-make-page_referenced-container-aware-v7.patch
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