Define function for calculating mapped_ratio in memory cgroup.
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
include/linux/memcontrol.h | 11 ++++++++++-
mm/memcontrol.c | 13 +++++++++++++
2 files changed, 23 insertions(+), 1 deletion(-)
Index: linux-2.6.24-rc2-mm1/mm/memcontrol.c
===================================================================
--- linux-2.6.24-rc2-mm1.orig/mm/memcontrol.c
+++ linux-2.6.24-rc2-mm1/mm/memcontrol.c
@@ -400,6 +400,19 @@ void mem_cgroup_move_lists(struct page_c
spin_unlock(&mem->lru_lock);
}
+/*
+ * Calclate mapped_ratio under memory controller.
+ */
+int mem_cgroup_calc_mapped_ratio(struct mem_cgroup *mem)
+{
+ s64 total, rss;
+
+ /* usage is recoreded in bytes */
+ total = mem->res.usage >> PAGE_SHIFT;
+ rss = mem_cgroup_read_stat(&mem->stat, MEM_CGROUP_STAT_RSS);
+ return (rss * 100) / total;
+}
+
unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan,
struct list_head *dst,
unsigned long *scanned, int order,
Index: linux-2.6.24-rc2-mm1/include/linux/memcontrol.h
===================================================================
--- linux-2.6.24-rc2-mm1.orig/include/linux/memcontrol.h
+++ linux-2.6.24-rc2-mm1/include/linux/memcontrol.h
@@ -61,6 +61,12 @@ extern int mem_cgroup_prepare_migration(
extern void mem_cgroup_end_migration(struct page *page);
extern void mem_cgroup_page_migration(struct page *page, struct page *newpage);
+/*
+ * For memory reclaim.
+ */
+extern int mem_cgroup_calc_mapped_ratio(struct mem_cgroup *mem);
+
+
#else /* CONFIG_CGROUP_MEM_CONT */
static inline void mm_init_cgroup(struct mm_struct *mm,
struct task_struct *p)
@@ -132,7 +138,10 @@ mem_cgroup_page_migration(struct page *p
{
}
-
+static inline int mem_cgroup_calc_mapped_ratio(struct mem_cgroup *mem)
+{
+ return 0;
+}
#endif /* CONFIG_CGROUP_MEM_CONT */
#endif /* _LINUX_MEMCONTROL_H */
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