memcg: rename RESOURCE_MAX to RES_COUNTER_MAX

RESOURCE_MAX is far too general name, change it to RES_COUNTER_MAX.

Signed-off-by: Sha Zhengju <handai.szj@taobao.com>
Signed-off-by: Qiang Huang <h.huangqiang@huawei.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: Jeff Liu <jeff.liu@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/linux/res_counter.h

@@ -54,7 +54,7 @@ struct res_counter {
 	struct res_counter *parent;
 };
 
-#define RESOURCE_MAX ULLONG_MAX
+#define RES_COUNTER_MAX ULLONG_MAX
 
 /**
  * Helpers to interact with userspace

kernel/res_counter.c

@@ -17,8 +17,8 @@
 void res_counter_init(struct res_counter *counter, struct res_counter *parent)
 {
 	spin_lock_init(&counter->lock);
-	counter->limit = RESOURCE_MAX;
-	counter->soft_limit = RESOURCE_MAX;
+	counter->limit = RES_COUNTER_MAX;
+	counter->soft_limit = RES_COUNTER_MAX;
 	counter->parent = parent;
 }
 
@@ -182,12 +182,12 @@ int res_counter_memparse_write_strategy(const char *buf,
 {
 	char *end;
 
-	/* return RESOURCE_MAX(unlimited) if "-1" is specified */
+	/* return RES_COUNTER_MAX(unlimited) if "-1" is specified */
 	if (*buf == '-') {
 		*res = simple_strtoull(buf + 1, &end, 10);
 		if (*res != 1 || *end != '\0')
 			return -EINVAL;
-		*res = RESOURCE_MAX;
+		*res = RES_COUNTER_MAX;
 		return 0;
 	}
 

mm/memcontrol.c

@@ -4967,7 +4967,7 @@ static int memcg_update_kmem_limit(struct cgroup_subsys_state *css, u64 val)
 	 */
 	mutex_lock(&memcg_create_mutex);
 	mutex_lock(&set_limit_mutex);
-	if (!memcg->kmem_account_flags && val != RESOURCE_MAX) {
+	if (!memcg->kmem_account_flags && val != RES_COUNTER_MAX) {
 		if (cgroup_task_count(css->cgroup) || memcg_has_children(memcg)) {
 			ret = -EBUSY;
 			goto out;
@@ -4977,7 +4977,7 @@ static int memcg_update_kmem_limit(struct cgroup_subsys_state *css, u64 val)
 
 		ret = memcg_update_cache_sizes(memcg);
 		if (ret) {
-			res_counter_set_limit(&memcg->kmem, RESOURCE_MAX);
+			res_counter_set_limit(&memcg->kmem, RES_COUNTER_MAX);
 			goto out;
 		}
 		static_key_slow_inc(&memcg_kmem_enabled_key);

net/ipv4/tcp_memcontrol.c

@@ -87,8 +87,8 @@ static int tcp_update_limit(struct mem_cgroup *memcg, u64 val)
 	if (!cg_proto)
 		return -EINVAL;
 
-	if (val > RESOURCE_MAX)
-		val = RESOURCE_MAX;
+	if (val > RES_COUNTER_MAX)
+		val = RES_COUNTER_MAX;
 
 	tcp = tcp_from_cgproto(cg_proto);
 
@@ -101,9 +101,9 @@ static int tcp_update_limit(struct mem_cgroup *memcg, u64 val)
 		tcp->tcp_prot_mem[i] = min_t(long, val >> PAGE_SHIFT,
 					     net->ipv4.sysctl_tcp_mem[i]);
 
-	if (val == RESOURCE_MAX)
+	if (val == RES_COUNTER_MAX)
 		clear_bit(MEMCG_SOCK_ACTIVE, &cg_proto->flags);
-	else if (val != RESOURCE_MAX) {
+	else if (val != RES_COUNTER_MAX) {
 		/*
 		 * The active bit needs to be written after the static_key
 		 * update. This is what guarantees that the socket activation
@@ -187,7 +187,7 @@ static u64 tcp_cgroup_read(struct cgroup_subsys_state *css, struct cftype *cft)
 
 	switch (cft->private) {
 	case RES_LIMIT:
-		val = tcp_read_stat(memcg, RES_LIMIT, RESOURCE_MAX);
+		val = tcp_read_stat(memcg, RES_LIMIT, RES_COUNTER_MAX);
 		break;
 	case RES_USAGE:
 		val = tcp_read_usage(memcg);