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>

diff --git a/include/linux/res_counter.h b/include/linux/res_counter.h
index 586bc7c..201a697 100644 (file)
--- a/include/linux/res_counter.h
+++ b/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

diff --git a/kernel/res_counter.c b/kernel/res_counter.c
index ff55247..3f0417f 100644 (file)
--- a/kernel/res_counter.c
+++ b/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;
        }
 

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 4b5cfb5..2c71f24 100644 (file)
--- a/mm/memcontrol.c
+++ b/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);

diff --git a/net/ipv4/tcp_memcontrol.c b/net/ipv4/tcp_memcontrol.c
index 8a57d79..559d4ae 100644 (file)
--- a/net/ipv4/tcp_memcontrol.c
+++ b/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);