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Memory controller: rename to Memory Resource Controller 

Rename Memory Controller to Memory Resource Controller.  Reflect the same
changes in the CONFIG definition for the Memory Resource Controller.  Group
together the config options for Resource Counters and Memory Resource
Controller.

Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Balbir Singh 2008-03-04 14:28:39 -08:00 committed by Linus Torvalds
parent 804defea1c
commit 00f0b8259e
8 changed files with 30 additions and 26 deletions
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8
Documentation/controllers/memory.txt
View File

@ -1,4 +1,8 @@
Memory Controller
Memory Resource Controller
NOTE: The Memory Resource Controller has been generically been referred
to as the memory controller in this document. Do not confuse memory controller
used here with the memory controller that is used in hardware.
Salient features
@ -152,7 +156,7 @@ The memory controller uses the following hierarchy
a. Enable CONFIG_CGROUPS
b. Enable CONFIG_RESOURCE_COUNTERS
c. Enable CONFIG_CGROUP_MEM_CONT
c. Enable CONFIG_CGROUP_MEM_RES_CTLR
1. Prepare the cgroups
# mkdir -p /cgroups

2
include/linux/cgroup_subsys.h
View File

@ -37,7 +37,7 @@ SUBSYS(cpuacct)
/* */
#ifdef CONFIG_CGROUP_MEM_CONT
#ifdef CONFIG_CGROUP_MEM_RES_CTLR
SUBSYS(mem_cgroup)
#endif

4
include/linux/memcontrol.h
View File

@ -25,7 +25,7 @@ struct page_cgroup;
struct page;
struct mm_struct;
#ifdef CONFIG_CGROUP_MEM_CONT
#ifdef CONFIG_CGROUP_MEM_RES_CTLR
extern void mm_init_cgroup(struct mm_struct *mm, struct task_struct *p);
extern void mm_free_cgroup(struct mm_struct *mm);
@ -72,7 +72,7 @@ extern long mem_cgroup_calc_reclaim_active(struct mem_cgroup *mem,
extern long mem_cgroup_calc_reclaim_inactive(struct mem_cgroup *mem,
struct zone *zone, int priority);
#else /* CONFIG_CGROUP_MEM_CONT */
#else /* CONFIG_CGROUP_MEM_RES_CTLR */
static inline void mm_init_cgroup(struct mm_struct *mm,
struct task_struct *p)
{

4
include/linux/mm_types.h
View File

@ -88,7 +88,7 @@ struct page {
void *virtual; /* Kernel virtual address (NULL if
not kmapped, ie. highmem) */
#endif /* WANT_PAGE_VIRTUAL */
#ifdef CONFIG_CGROUP_MEM_CONT
#ifdef CONFIG_CGROUP_MEM_RES_CTLR
unsigned long page_cgroup;
#endif
};
@ -222,7 +222,7 @@ struct mm_struct {
/* aio bits */
rwlock_t ioctx_list_lock;
struct kioctx *ioctx_list;
#ifdef CONFIG_CGROUP_MEM_CONT
#ifdef CONFIG_CGROUP_MEM_RES_CTLR
struct mem_cgroup *mem_cgroup;
#endif
};

30
init/Kconfig
View File

@ -366,6 +366,21 @@ config RESOURCE_COUNTERS
infrastructure that works with cgroups
depends on CGROUPS
config CGROUP_MEM_RES_CTLR
bool "Memory Resource Controller for Control Groups"
depends on CGROUPS && RESOURCE_COUNTERS
help
Provides a memory resource controller that manages both page cache and
RSS memory.
Note that setting this option increases fixed memory overhead
associated with each page of memory in the system by 4/8 bytes
and also increases cache misses because struct page on many 64bit
systems will not fit into a single cache line anymore.
Only enable when you're ok with these trade offs and really
sure you need the memory resource controller.
config SYSFS_DEPRECATED
bool "Create deprecated sysfs files"
depends on SYSFS
@ -387,21 +402,6 @@ 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 CGROUP_MEM_CONT
bool "Memory controller for cgroups"
depends on CGROUPS && RESOURCE_COUNTERS
help
Provides a memory controller that manages both page cache and
RSS memory.
Note that setting this option increases fixed memory overhead
associated with each page of memory in the system by 4/8 bytes
and also increases cache misses because struct page on many 64bit
systems will not fit into a single cache line anymore.
Only enable when you're ok with these trade offs and really
sure you need the memory controller.
config PROC_PID_CPUSET
bool "Include legacy /proc/<pid>/cpuset file"
depends on CPUSETS

2
mm/Makefile
View File

@ -32,5 +32,5 @@ obj-$(CONFIG_FS_XIP) += filemap_xip.o
obj-$(CONFIG_MIGRATION) += migrate.o
obj-$(CONFIG_SMP) += allocpercpu.o
obj-$(CONFIG_QUICKLIST) += quicklist.o
obj-$(CONFIG_CGROUP_MEM_CONT) += memcontrol.o
obj-$(CONFIG_CGROUP_MEM_RES_CTLR) += memcontrol.o

2
mm/oom_kill.c
View File

@ -412,7 +412,7 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order,
return oom_kill_task(p);
}
#ifdef CONFIG_CGROUP_MEM_CONT
#ifdef CONFIG_CGROUP_MEM_RES_CTLR
void mem_cgroup_out_of_memory(struct mem_cgroup *mem, gfp_t gfp_mask)
{
unsigned long points = 0;

4
mm/vmscan.c
View File

@ -126,7 +126,7 @@ long vm_total_pages; /* The total number of pages which the VM controls */
static LIST_HEAD(shrinker_list);
static DECLARE_RWSEM(shrinker_rwsem);
#ifdef CONFIG_CGROUP_MEM_CONT
#ifdef CONFIG_CGROUP_MEM_RES_CTLR
#define scan_global_lru(sc) (!(sc)->mem_cgroup)
#else
#define scan_global_lru(sc) (1)
@ -1427,7 +1427,7 @@ unsigned long try_to_free_pages(struct zone **zones, int order, gfp_t gfp_mask)
return do_try_to_free_pages(zones, gfp_mask, &sc);
}
#ifdef CONFIG_CGROUP_MEM_CONT
#ifdef CONFIG_CGROUP_MEM_RES_CTLR
unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem_cont,
gfp_t gfp_mask)