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-rw-r--r--fs/ncpfs/mmap.c2
-rw-r--r--include/linux/memcontrol.h7
-rw-r--r--mm/filemap.c1
-rw-r--r--mm/memcontrol.c47
-rw-r--r--mm/memory.c2
-rw-r--r--mm/shmem.c11
6 files changed, 65 insertions, 5 deletions
diff --git a/fs/ncpfs/mmap.c b/fs/ncpfs/mmap.c
index a7c07b4..e5d71b2 100644
--- a/fs/ncpfs/mmap.c
+++ b/fs/ncpfs/mmap.c
@@ -16,6 +16,7 @@
#include <linux/mman.h>
#include <linux/string.h>
#include <linux/fcntl.h>
+#include <linux/memcontrol.h>
#include <asm/uaccess.h>
#include <asm/system.h>
@@ -92,6 +93,7 @@ static int ncp_file_mmap_fault(struct vm_area_struct *area,
* -- wli
*/
count_vm_event(PGMAJFAULT);
+ mem_cgroup_count_vm_event(area->vm_mm, PGMAJFAULT);
return VM_FAULT_MAJOR;
}
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index ac1e5d20..9724a38 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -20,6 +20,8 @@
#ifndef _LINUX_MEMCONTROL_H
#define _LINUX_MEMCONTROL_H
#include <linux/cgroup.h>
+#include <linux/vm_event_item.h>
+
struct mem_cgroup;
struct page_cgroup;
struct page;
@@ -149,6 +151,7 @@ unsigned long mem_cgroup_soft_limit_reclaim(struct zone *zone, int order,
unsigned long *total_scanned);
u64 mem_cgroup_get_limit(struct mem_cgroup *mem);
+void mem_cgroup_count_vm_event(struct mm_struct *mm, enum vm_event_item idx);
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
void mem_cgroup_split_huge_fixup(struct page *head, struct page *tail);
#endif
@@ -357,6 +360,10 @@ static inline void mem_cgroup_split_huge_fixup(struct page *head,
{
}
+static inline
+void mem_cgroup_count_vm_event(struct mm_struct *mm, enum vm_event_item idx)
+{
+}
#endif /* CONFIG_CGROUP_MEM_CONT */
#if !defined(CONFIG_CGROUP_MEM_RES_CTLR) || !defined(CONFIG_DEBUG_VM)
diff --git a/mm/filemap.c b/mm/filemap.c
index 7455ccd..bcdc393 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1661,6 +1661,7 @@ int filemap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
/* No page in the page cache at all */
do_sync_mmap_readahead(vma, ra, file, offset);
count_vm_event(PGMAJFAULT);
+ mem_cgroup_count_vm_event(vma->vm_mm, PGMAJFAULT);
ret = VM_FAULT_MAJOR;
retry_find:
page = find_get_page(mapping, offset);
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 4021fcd..bd9052a 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -94,6 +94,8 @@ enum mem_cgroup_events_index {
MEM_CGROUP_EVENTS_PGPGIN, /* # of pages paged in */
MEM_CGROUP_EVENTS_PGPGOUT, /* # of pages paged out */
MEM_CGROUP_EVENTS_COUNT, /* # of pages paged in/out */
+ MEM_CGROUP_EVENTS_PGFAULT, /* # of page-faults */
+ MEM_CGROUP_EVENTS_PGMAJFAULT, /* # of major page-faults */
MEM_CGROUP_EVENTS_NSTATS,
};
/*
@@ -590,6 +592,16 @@ static void mem_cgroup_swap_statistics(struct mem_cgroup *mem,
this_cpu_add(mem->stat->count[MEM_CGROUP_STAT_SWAPOUT], val);
}
+void mem_cgroup_pgfault(struct mem_cgroup *mem, int val)
+{
+ this_cpu_add(mem->stat->events[MEM_CGROUP_EVENTS_PGFAULT], val);
+}
+
+void mem_cgroup_pgmajfault(struct mem_cgroup *mem, int val)
+{
+ this_cpu_add(mem->stat->events[MEM_CGROUP_EVENTS_PGMAJFAULT], val);
+}
+
static unsigned long mem_cgroup_read_events(struct mem_cgroup *mem,
enum mem_cgroup_events_index idx)
{
@@ -827,6 +839,33 @@ static inline bool mem_cgroup_is_root(struct mem_cgroup *mem)
return (mem == root_mem_cgroup);
}
+void mem_cgroup_count_vm_event(struct mm_struct *mm, enum vm_event_item idx)
+{
+ struct mem_cgroup *mem;
+
+ if (!mm)
+ return;
+
+ rcu_read_lock();
+ mem = mem_cgroup_from_task(rcu_dereference(mm->owner));
+ if (unlikely(!mem))
+ goto out;
+
+ switch (idx) {
+ case PGMAJFAULT:
+ mem_cgroup_pgmajfault(mem, 1);
+ break;
+ case PGFAULT:
+ mem_cgroup_pgfault(mem, 1);
+ break;
+ default:
+ BUG();
+ }
+out:
+ rcu_read_unlock();
+}
+EXPORT_SYMBOL(mem_cgroup_count_vm_event);
+
/*
* Following LRU functions are allowed to be used without PCG_LOCK.
* Operations are called by routine of global LRU independently from memcg.
@@ -3958,6 +3997,8 @@ enum {
MCS_PGPGIN,
MCS_PGPGOUT,
MCS_SWAP,
+ MCS_PGFAULT,
+ MCS_PGMAJFAULT,
MCS_INACTIVE_ANON,
MCS_ACTIVE_ANON,
MCS_INACTIVE_FILE,
@@ -3980,6 +4021,8 @@ struct {
{"pgpgin", "total_pgpgin"},
{"pgpgout", "total_pgpgout"},
{"swap", "total_swap"},
+ {"pgfault", "total_pgfault"},
+ {"pgmajfault", "total_pgmajfault"},
{"inactive_anon", "total_inactive_anon"},
{"active_anon", "total_active_anon"},
{"inactive_file", "total_inactive_file"},
@@ -4008,6 +4051,10 @@ mem_cgroup_get_local_stat(struct mem_cgroup *mem, struct mcs_total_stat *s)
val = mem_cgroup_read_stat(mem, MEM_CGROUP_STAT_SWAPOUT);
s->stat[MCS_SWAP] += val * PAGE_SIZE;
}
+ val = mem_cgroup_read_events(mem, MEM_CGROUP_EVENTS_PGFAULT);
+ s->stat[MCS_PGFAULT] += val;
+ val = mem_cgroup_read_events(mem, MEM_CGROUP_EVENTS_PGMAJFAULT);
+ s->stat[MCS_PGMAJFAULT] += val;
/* per zone stat */
val = mem_cgroup_get_local_zonestat(mem, LRU_INACTIVE_ANON);
diff --git a/mm/memory.c b/mm/memory.c
index fc24f7d..6953d39 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2874,6 +2874,7 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
/* Had to read the page from swap area: Major fault */
ret = VM_FAULT_MAJOR;
count_vm_event(PGMAJFAULT);
+ mem_cgroup_count_vm_event(mm, PGMAJFAULT);
} else if (PageHWPoison(page)) {
/*
* hwpoisoned dirty swapcache pages are kept for killing
@@ -3413,6 +3414,7 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
__set_current_state(TASK_RUNNING);
count_vm_event(PGFAULT);
+ mem_cgroup_count_vm_event(mm, PGFAULT);
/* do counter updates before entering really critical section. */
check_sync_rss_stat(current);
diff --git a/mm/shmem.c b/mm/shmem.c
index 69edb45..1acfb26 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1305,12 +1305,10 @@ repeat:
swappage = lookup_swap_cache(swap);
if (!swappage) {
shmem_swp_unmap(entry);
+ spin_unlock(&info->lock);
/* here we actually do the io */
- if (type && !(*type & VM_FAULT_MAJOR)) {
- __count_vm_event(PGMAJFAULT);
+ if (type)
*type |= VM_FAULT_MAJOR;
- }
- spin_unlock(&info->lock);
swappage = shmem_swapin(swap, gfp, info, idx);
if (!swappage) {
spin_lock(&info->lock);
@@ -1549,7 +1547,10 @@ static int shmem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
error = shmem_getpage(inode, vmf->pgoff, &vmf->page, SGP_CACHE, &ret);
if (error)
return ((error == -ENOMEM) ? VM_FAULT_OOM : VM_FAULT_SIGBUS);
-
+ if (ret & VM_FAULT_MAJOR) {
+ count_vm_event(PGMAJFAULT);
+ mem_cgroup_count_vm_event(vma->vm_mm, PGMAJFAULT);
+ }
return ret | VM_FAULT_LOCKED;
}
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