1 files changed, 17 insertions, 51 deletions

diff --git a/kernel/sched.c b/kernel/sched.c
index 740fb409e5bb..34bcc5bc120e 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -8025,7 +8025,7 @@ static void init_tg_cfs_entry(struct task_group *tg, struct cfs_rq *cfs_rq,
 
         se->my_q = cfs_rq;
         se->load.weight = tg->shares;
-        se->load.inv_weight = div64_64(1ULL<<32, se->load.weight);
+        se->load.inv_weight = div64_u64(1ULL<<32, se->load.weight);
         se->parent = parent;
 }
 #endif
@@ -8692,7 +8692,7 @@ static void __set_se_shares(struct sched_entity *se, unsigned long shares)
                 dequeue_entity(cfs_rq, se, 0);
 
         se->load.weight = shares;
-        se->load.inv_weight = div64_64((1ULL<<32), shares);
+        se->load.inv_weight = div64_u64((1ULL<<32), shares);
 
         if (on_rq)
                 enqueue_entity(cfs_rq, se, 0);
@@ -8787,7 +8787,7 @@ static unsigned long to_ratio(u64 period, u64 runtime)
         if (runtime == RUNTIME_INF)
                 return 1ULL << 16;
 
-        return div64_64(runtime << 16, period);
+        return div64_u64(runtime << 16, period);
 }
 
 #ifdef CONFIG_CGROUP_SCHED
@@ -9057,13 +9057,13 @@ cpu_cgroup_attach(struct cgroup_subsys *ss, struct cgroup *cgrp,
 }
 
 #ifdef CONFIG_FAIR_GROUP_SCHED
-static int cpu_shares_write_uint(struct cgroup *cgrp, struct cftype *cftype,
+static int cpu_shares_write_u64(struct cgroup *cgrp, struct cftype *cftype,
                                 u64 shareval)
 {
         return sched_group_set_shares(cgroup_tg(cgrp), shareval);
 }
 
-static u64 cpu_shares_read_uint(struct cgroup *cgrp, struct cftype *cft)
+static u64 cpu_shares_read_u64(struct cgroup *cgrp, struct cftype *cft)
 {
         struct task_group *tg = cgroup_tg(cgrp);
 
@@ -9073,48 +9073,14 @@ static u64 cpu_shares_read_uint(struct cgroup *cgrp, struct cftype *cft)
 
 #ifdef CONFIG_RT_GROUP_SCHED
 static ssize_t cpu_rt_runtime_write(struct cgroup *cgrp, struct cftype *cft,
-                                struct file *file,
-                                const char __user *userbuf,
-                                size_t nbytes, loff_t *unused_ppos)
+                                s64 val)
 {
-        char buffer[64];
-        int retval = 0;
-        s64 val;
-        char *end;
-
-        if (!nbytes)
-                return -EINVAL;
-        if (nbytes >= sizeof(buffer))
-                return -E2BIG;
-        if (copy_from_user(buffer, userbuf, nbytes))
-                return -EFAULT;
-
-        buffer[nbytes] = 0;     /* nul-terminate */
-
-        /* strip newline if necessary */
-        if (nbytes && (buffer[nbytes-1] == '\n'))
-                buffer[nbytes-1] = 0;
-        val = simple_strtoll(buffer, &end, 0);
-        if (*end)
-                return -EINVAL;
-
-        /* Pass to subsystem */
-        retval = sched_group_set_rt_runtime(cgroup_tg(cgrp), val);
-        if (!retval)
-                retval = nbytes;
-        return retval;
+        return sched_group_set_rt_runtime(cgroup_tg(cgrp), val);
 }
 
-static ssize_t cpu_rt_runtime_read(struct cgroup *cgrp, struct cftype *cft,
-                                   struct file *file,
-                                   char __user *buf, size_t nbytes,
-                                   loff_t *ppos)
+static s64 cpu_rt_runtime_read(struct cgroup *cgrp, struct cftype *cft)
 {
-        char tmp[64];
-        long val = sched_group_rt_runtime(cgroup_tg(cgrp));
-        int len = sprintf(tmp, "%ld\n", val);
-
-        return simple_read_from_buffer(buf, nbytes, ppos, tmp, len);
+        return sched_group_rt_runtime(cgroup_tg(cgrp));
 }
 
 static int cpu_rt_period_write_uint(struct cgroup *cgrp, struct cftype *cftype,
@@ -9133,20 +9099,20 @@ static struct cftype cpu_files[] = {
 #ifdef CONFIG_FAIR_GROUP_SCHED
         {
                 .name = "shares",
-                .read_uint = cpu_shares_read_uint,
-                .write_uint = cpu_shares_write_uint,
+                .read_u64 = cpu_shares_read_u64,
+                .write_u64 = cpu_shares_write_u64,
         },
 #endif
 #ifdef CONFIG_RT_GROUP_SCHED
         {
                 .name = "rt_runtime_us",
-                .read = cpu_rt_runtime_read,
-                .write = cpu_rt_runtime_write,
+                .read_s64 = cpu_rt_runtime_read,
+                .write_s64 = cpu_rt_runtime_write,
         },
         {
                 .name = "rt_period_us",
-                .read_uint = cpu_rt_period_read_uint,
-                .write_uint = cpu_rt_period_write_uint,
+                .read_u64 = cpu_rt_period_read_uint,
+                .write_u64 = cpu_rt_period_write_uint,
         },
 #endif
 };
@@ -9277,8 +9243,8 @@ out:
 static struct cftype files[] = {
         {
                 .name = "usage",
-                .read_uint = cpuusage_read,
-                .write_uint = cpuusage_write,
+                .read_u64 = cpuusage_read,
+                .write_u64 = cpuusage_write,
         },
 };