diff options
Diffstat (limited to 'mm/memcontrol.c')
| -rw-r--r-- | mm/memcontrol.c | 112 |
1 files changed, 56 insertions, 56 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index d86665cf4a49..79bb5aeaa800 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1034,13 +1034,13 @@ static unsigned long mem_cgroup_margin(struct mem_cgroup *memcg) unsigned long limit; count = page_counter_read(&memcg->memory); - limit = READ_ONCE(memcg->memory.limit); + limit = READ_ONCE(memcg->memory.max); if (count < limit) margin = limit - count; if (do_memsw_account()) { count = page_counter_read(&memcg->memsw); - limit = READ_ONCE(memcg->memsw.limit); + limit = READ_ONCE(memcg->memsw.max); if (count <= limit) margin = min(margin, limit - count); else @@ -1148,13 +1148,13 @@ void mem_cgroup_print_oom_info(struct mem_cgroup *memcg, struct task_struct *p) pr_info("memory: usage %llukB, limit %llukB, failcnt %lu\n", K((u64)page_counter_read(&memcg->memory)), - K((u64)memcg->memory.limit), memcg->memory.failcnt); + K((u64)memcg->memory.max), memcg->memory.failcnt); pr_info("memory+swap: usage %llukB, limit %llukB, failcnt %lu\n", K((u64)page_counter_read(&memcg->memsw)), - K((u64)memcg->memsw.limit), memcg->memsw.failcnt); + K((u64)memcg->memsw.max), memcg->memsw.failcnt); pr_info("kmem: usage %llukB, limit %llukB, failcnt %lu\n", K((u64)page_counter_read(&memcg->kmem)), - K((u64)memcg->kmem.limit), memcg->kmem.failcnt); + K((u64)memcg->kmem.max), memcg->kmem.failcnt); for_each_mem_cgroup_tree(iter, memcg) { pr_info("Memory cgroup stats for "); @@ -1179,21 +1179,21 @@ void mem_cgroup_print_oom_info(struct mem_cgroup *memcg, struct task_struct *p) /* * Return the memory (and swap, if configured) limit for a memcg. */ -unsigned long mem_cgroup_get_limit(struct mem_cgroup *memcg) +unsigned long mem_cgroup_get_max(struct mem_cgroup *memcg) { - unsigned long limit; + unsigned long max; - limit = memcg->memory.limit; + max = memcg->memory.max; if (mem_cgroup_swappiness(memcg)) { - unsigned long memsw_limit; - unsigned long swap_limit; + unsigned long memsw_max; + unsigned long swap_max; - memsw_limit = memcg->memsw.limit; - swap_limit = memcg->swap.limit; - swap_limit = min(swap_limit, (unsigned long)total_swap_pages); - limit = min(limit + swap_limit, memsw_limit); + memsw_max = memcg->memsw.max; + swap_max = memcg->swap.max; + swap_max = min(swap_max, (unsigned long)total_swap_pages); + max = min(max + swap_max, memsw_max); } - return limit; + return max; } static bool mem_cgroup_out_of_memory(struct mem_cgroup *memcg, gfp_t gfp_mask, @@ -2444,10 +2444,10 @@ static inline int mem_cgroup_move_swap_account(swp_entry_t entry, } #endif -static DEFINE_MUTEX(memcg_limit_mutex); +static DEFINE_MUTEX(memcg_max_mutex); -static int mem_cgroup_resize_limit(struct mem_cgroup *memcg, - unsigned long limit, bool memsw) +static int mem_cgroup_resize_max(struct mem_cgroup *memcg, + unsigned long max, bool memsw) { bool enlarge = false; int ret; @@ -2460,22 +2460,22 @@ static int mem_cgroup_resize_limit(struct mem_cgroup *memcg, break; } - mutex_lock(&memcg_limit_mutex); + mutex_lock(&memcg_max_mutex); /* * Make sure that the new limit (memsw or memory limit) doesn't - * break our basic invariant rule memory.limit <= memsw.limit. + * break our basic invariant rule memory.max <= memsw.max. */ - limits_invariant = memsw ? limit >= memcg->memory.limit : - limit <= memcg->memsw.limit; + limits_invariant = memsw ? max >= memcg->memory.max : + max <= memcg->memsw.max; if (!limits_invariant) { - mutex_unlock(&memcg_limit_mutex); + mutex_unlock(&memcg_max_mutex); ret = -EINVAL; break; } - if (limit > counter->limit) + if (max > counter->max) enlarge = true; - ret = page_counter_limit(counter, limit); - mutex_unlock(&memcg_limit_mutex); + ret = page_counter_set_max(counter, max); + mutex_unlock(&memcg_max_mutex); if (!ret) break; @@ -2757,7 +2757,7 @@ static u64 mem_cgroup_read_u64(struct cgroup_subsys_state *css, return (u64)mem_cgroup_usage(memcg, true) * PAGE_SIZE; return (u64)page_counter_read(counter) * PAGE_SIZE; case RES_LIMIT: - return (u64)counter->limit * PAGE_SIZE; + return (u64)counter->max * PAGE_SIZE; case RES_MAX_USAGE: return (u64)counter->watermark * PAGE_SIZE; case RES_FAILCNT: @@ -2871,24 +2871,24 @@ static void memcg_free_kmem(struct mem_cgroup *memcg) } #endif /* !CONFIG_SLOB */ -static int memcg_update_kmem_limit(struct mem_cgroup *memcg, - unsigned long limit) +static int memcg_update_kmem_max(struct mem_cgroup *memcg, + unsigned long max) { int ret; - mutex_lock(&memcg_limit_mutex); - ret = page_counter_limit(&memcg->kmem, limit); - mutex_unlock(&memcg_limit_mutex); + mutex_lock(&memcg_max_mutex); + ret = page_counter_set_max(&memcg->kmem, max); + mutex_unlock(&memcg_max_mutex); return ret; } -static int memcg_update_tcp_limit(struct mem_cgroup *memcg, unsigned long limit) +static int memcg_update_tcp_max(struct mem_cgroup *memcg, unsigned long max) { int ret; - mutex_lock(&memcg_limit_mutex); + mutex_lock(&memcg_max_mutex); - ret = page_counter_limit(&memcg->tcpmem, limit); + ret = page_counter_set_max(&memcg->tcpmem, max); if (ret) goto out; @@ -2913,7 +2913,7 @@ static int memcg_update_tcp_limit(struct mem_cgroup *memcg, unsigned long limit) memcg->tcpmem_active = true; } out: - mutex_unlock(&memcg_limit_mutex); + mutex_unlock(&memcg_max_mutex); return ret; } @@ -2941,16 +2941,16 @@ static ssize_t mem_cgroup_write(struct kernfs_open_file *of, } switch (MEMFILE_TYPE(of_cft(of)->private)) { case _MEM: - ret = mem_cgroup_resize_limit(memcg, nr_pages, false); + ret = mem_cgroup_resize_max(memcg, nr_pages, false); break; case _MEMSWAP: - ret = mem_cgroup_resize_limit(memcg, nr_pages, true); + ret = mem_cgroup_resize_max(memcg, nr_pages, true); break; case _KMEM: - ret = memcg_update_kmem_limit(memcg, nr_pages); + ret = memcg_update_kmem_max(memcg, nr_pages); break; case _TCP: - ret = memcg_update_tcp_limit(memcg, nr_pages); + ret = memcg_update_tcp_max(memcg, nr_pages); break; } break; @@ -3126,8 +3126,8 @@ static int memcg_stat_show(struct seq_file *m, void *v) /* Hierarchical information */ memory = memsw = PAGE_COUNTER_MAX; for (mi = memcg; mi; mi = parent_mem_cgroup(mi)) { - memory = min(memory, mi->memory.limit); - memsw = min(memsw, mi->memsw.limit); + memory = min(memory, mi->memory.max); + memsw = min(memsw, mi->memsw.max); } seq_printf(m, "hierarchical_memory_limit %llu\n", (u64)memory * PAGE_SIZE); @@ -3626,7 +3626,7 @@ void mem_cgroup_wb_stats(struct bdi_writeback *wb, unsigned long *pfilepages, *pheadroom = PAGE_COUNTER_MAX; while ((parent = parent_mem_cgroup(memcg))) { - unsigned long ceiling = min(memcg->memory.limit, memcg->high); + unsigned long ceiling = min(memcg->memory.max, memcg->high); unsigned long used = page_counter_read(&memcg->memory); *pheadroom = min(*pheadroom, ceiling - min(ceiling, used)); @@ -4319,12 +4319,12 @@ static void mem_cgroup_css_reset(struct cgroup_subsys_state *css) { struct mem_cgroup *memcg = mem_cgroup_from_css(css); - page_counter_limit(&memcg->memory, PAGE_COUNTER_MAX); - page_counter_limit(&memcg->swap, PAGE_COUNTER_MAX); - page_counter_limit(&memcg->memsw, PAGE_COUNTER_MAX); - page_counter_limit(&memcg->kmem, PAGE_COUNTER_MAX); - page_counter_limit(&memcg->tcpmem, PAGE_COUNTER_MAX); memcg->low = 0; + page_counter_set_max(&memcg->memory, PAGE_COUNTER_MAX); + page_counter_set_max(&memcg->swap, PAGE_COUNTER_MAX); + page_counter_set_max(&memcg->memsw, PAGE_COUNTER_MAX); + page_counter_set_max(&memcg->kmem, PAGE_COUNTER_MAX); + page_counter_set_max(&memcg->tcpmem, PAGE_COUNTER_MAX); memcg->high = PAGE_COUNTER_MAX; memcg->soft_limit = PAGE_COUNTER_MAX; memcg_wb_domain_size_changed(memcg); @@ -5131,7 +5131,7 @@ static ssize_t memory_high_write(struct kernfs_open_file *of, static int memory_max_show(struct seq_file *m, void *v) { struct mem_cgroup *memcg = mem_cgroup_from_css(seq_css(m)); - unsigned long max = READ_ONCE(memcg->memory.limit); + unsigned long max = READ_ONCE(memcg->memory.max); if (max == PAGE_COUNTER_MAX) seq_puts(m, "max\n"); @@ -5155,7 +5155,7 @@ static ssize_t memory_max_write(struct kernfs_open_file *of, if (err) return err; - xchg(&memcg->memory.limit, max); + xchg(&memcg->memory.max, max); for (;;) { unsigned long nr_pages = page_counter_read(&memcg->memory); @@ -6074,7 +6074,7 @@ long mem_cgroup_get_nr_swap_pages(struct mem_cgroup *memcg) return nr_swap_pages; for (; memcg != root_mem_cgroup; memcg = parent_mem_cgroup(memcg)) nr_swap_pages = min_t(long, nr_swap_pages, - READ_ONCE(memcg->swap.limit) - + READ_ONCE(memcg->swap.max) - page_counter_read(&memcg->swap)); return nr_swap_pages; } @@ -6095,7 +6095,7 @@ bool mem_cgroup_swap_full(struct page *page) return false; for (; memcg != root_mem_cgroup; memcg = parent_mem_cgroup(memcg)) - if (page_counter_read(&memcg->swap) * 2 >= memcg->swap.limit) + if (page_counter_read(&memcg->swap) * 2 >= memcg->swap.max) return true; return false; @@ -6129,7 +6129,7 @@ static u64 swap_current_read(struct cgroup_subsys_state *css, static int swap_max_show(struct seq_file *m, void *v) { struct mem_cgroup *memcg = mem_cgroup_from_css(seq_css(m)); - unsigned long max = READ_ONCE(memcg->swap.limit); + unsigned long max = READ_ONCE(memcg->swap.max); if (max == PAGE_COUNTER_MAX) seq_puts(m, "max\n"); @@ -6151,9 +6151,9 @@ static ssize_t swap_max_write(struct kernfs_open_file *of, if (err) return err; - mutex_lock(&memcg_limit_mutex); - err = page_counter_limit(&memcg->swap, max); - mutex_unlock(&memcg_limit_mutex); + mutex_lock(&memcg_max_mutex); + err = page_counter_set_max(&memcg->swap, max); + mutex_unlock(&memcg_max_mutex); if (err) return err; |