diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memcontrol.c | 26 | ||||
| -rw-r--r-- | mm/oom_kill.c | 4 | ||||
| -rw-r--r-- | mm/sparse.c | 10 | ||||
| -rw-r--r-- | mm/vmstat.c | 1 |
4 files changed, 34 insertions, 7 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 9b648bd63451..2e0bfc93484b 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -533,6 +533,9 @@ static int mem_cgroup_charge_common(struct page *page, struct mm_struct *mm, unsigned long nr_retries = MEM_CGROUP_RECLAIM_RETRIES; struct mem_cgroup_per_zone *mz; + if (mem_cgroup_subsys.disabled) + return 0; + /* * Should page_cgroup's go to their own slab? * One could optimize the performance of the charging routine @@ -665,6 +668,9 @@ void mem_cgroup_uncharge_page(struct page *page) struct mem_cgroup_per_zone *mz; unsigned long flags; + if (mem_cgroup_subsys.disabled) + return; + /* * Check if our page_cgroup is valid */ @@ -705,6 +711,9 @@ int mem_cgroup_prepare_migration(struct page *page) { struct page_cgroup *pc; + if (mem_cgroup_subsys.disabled) + return 0; + lock_page_cgroup(page); pc = page_get_page_cgroup(page); if (pc) @@ -803,6 +812,9 @@ static int mem_cgroup_force_empty(struct mem_cgroup *mem) int ret = -EBUSY; int node, zid; + if (mem_cgroup_subsys.disabled) + return 0; + css_get(&mem->css); /* * page reclaim code (kswapd etc..) will move pages between @@ -966,7 +978,7 @@ static int alloc_mem_cgroup_per_zone_info(struct mem_cgroup *mem, int node) { struct mem_cgroup_per_node *pn; struct mem_cgroup_per_zone *mz; - int zone; + int zone, tmp = node; /* * This routine is called against possible nodes. * But it's BUG to call kmalloc() against offline node. @@ -975,10 +987,9 @@ static int alloc_mem_cgroup_per_zone_info(struct mem_cgroup *mem, int node) * never be onlined. It's better to use memory hotplug callback * function. */ - if (node_state(node, N_HIGH_MEMORY)) - pn = kmalloc_node(sizeof(*pn), GFP_KERNEL, node); - else - pn = kmalloc(sizeof(*pn), GFP_KERNEL); + if (!node_state(node, N_NORMAL_MEMORY)) + tmp = -1; + pn = kmalloc_node(sizeof(*pn), GFP_KERNEL, tmp); if (!pn) return 1; @@ -1053,6 +1064,8 @@ static void mem_cgroup_destroy(struct cgroup_subsys *ss, static int mem_cgroup_populate(struct cgroup_subsys *ss, struct cgroup *cont) { + if (mem_cgroup_subsys.disabled) + return 0; return cgroup_add_files(cont, ss, mem_cgroup_files, ARRAY_SIZE(mem_cgroup_files)); } @@ -1065,6 +1078,9 @@ static void mem_cgroup_move_task(struct cgroup_subsys *ss, struct mm_struct *mm; struct mem_cgroup *mem, *old_mem; + if (mem_cgroup_subsys.disabled) + return; + mm = get_task_mm(p); if (mm == NULL) return; diff --git a/mm/oom_kill.c b/mm/oom_kill.c index f255eda693b0..beb592fe9389 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -423,7 +423,7 @@ void mem_cgroup_out_of_memory(struct mem_cgroup *mem, gfp_t gfp_mask) struct task_struct *p; cgroup_lock(); - rcu_read_lock(); + read_lock(&tasklist_lock); retry: p = select_bad_process(&points, mem); if (PTR_ERR(p) == -1UL) @@ -436,7 +436,7 @@ retry: "Memory cgroup out of memory")) goto retry; out: - rcu_read_unlock(); + read_unlock(&tasklist_lock); cgroup_unlock(); } #endif diff --git a/mm/sparse.c b/mm/sparse.c index f6a43c09c322..98d6b39c3472 100644 --- a/mm/sparse.c +++ b/mm/sparse.c @@ -149,8 +149,18 @@ static inline int sparse_early_nid(struct mem_section *section) /* Record a memory area against a node. */ void __init memory_present(int nid, unsigned long start, unsigned long end) { + unsigned long max_arch_pfn = 1UL << (MAX_PHYSMEM_BITS-PAGE_SHIFT); unsigned long pfn; + /* + * Sanity checks - do not allow an architecture to pass + * in larger pfns than the maximum scope of sparsemem: + */ + if (start >= max_arch_pfn) + return; + if (end >= max_arch_pfn) + end = max_arch_pfn; + start &= PAGE_SECTION_MASK; for (pfn = start; pfn < end; pfn += PAGES_PER_SECTION) { unsigned long section = pfn_to_section_nr(pfn); diff --git a/mm/vmstat.c b/mm/vmstat.c index 422d960ffcd8..7c7286e9506d 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -388,6 +388,7 @@ static char * const migratetype_names[MIGRATE_TYPES] = { "Reclaimable", "Movable", "Reserve", + "Isolate", }; static void *frag_start(struct seq_file *m, loff_t *pos) |