Lumpy Reclaim V4

[firefly-linux-kernel-4.4.55.git] / mm / slab.c

diff --git a/mm/slab.c b/mm/slab.c
index b344e67071280c9df522ef77f56ffa62ed1b4d63..a453383333fc02f4c9bfc342bedb88eeb454f685 100644 (file)
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -929,7 +929,7 @@ static void next_reap_node(void)
  * the CPUs getting into lockstep and contending for the global cache chain
  * lock.
  */
-static void __devinit start_cpu_timer(int cpu)
+static void __cpuinit start_cpu_timer(int cpu)
 {
        struct delayed_work *reap_work = &per_cpu(reap_work, cpu);
 
@@ -4157,26 +4157,17 @@ static void print_slabinfo_header(struct seq_file *m)
 static void *s_start(struct seq_file *m, loff_t *pos)
 {
        loff_t n = *pos;
-       struct list_head *p;
 
        mutex_lock(&cache_chain_mutex);
        if (!n)
                print_slabinfo_header(m);
-       p = cache_chain.next;
-       while (n--) {
-               p = p->next;
-               if (p == &cache_chain)
-                       return NULL;
-       }
-       return list_entry(p, struct kmem_cache, next);
+
+       return seq_list_start(&cache_chain, *pos);
 }
 
 static void *s_next(struct seq_file *m, void *p, loff_t *pos)
 {
-       struct kmem_cache *cachep = p;
-       ++*pos;
-       return cachep->next.next == &cache_chain ?
-               NULL : list_entry(cachep->next.next, struct kmem_cache, next);
+       return seq_list_next(p, &cache_chain, pos);
 }
 
 static void s_stop(struct seq_file *m, void *p)
@@ -4186,7 +4177,7 @@ static void s_stop(struct seq_file *m, void *p)
 
 static int s_show(struct seq_file *m, void *p)
 {
-       struct kmem_cache *cachep = p;
+       struct kmem_cache *cachep = list_entry(p, struct kmem_cache, next);
        struct slab *slabp;
        unsigned long active_objs;
        unsigned long num_objs;
@@ -4355,17 +4346,8 @@ ssize_t slabinfo_write(struct file *file, const char __user * buffer,
 
 static void *leaks_start(struct seq_file *m, loff_t *pos)
 {
-       loff_t n = *pos;
-       struct list_head *p;
-
        mutex_lock(&cache_chain_mutex);
-       p = cache_chain.next;
-       while (n--) {
-               p = p->next;
-               if (p == &cache_chain)
-                       return NULL;
-       }
-       return list_entry(p, struct kmem_cache, next);
+       return seq_list_start(&cache_chain, *pos);
 }
 
 static inline int add_caller(unsigned long *n, unsigned long v)
@@ -4430,7 +4412,7 @@ static void show_symbol(struct seq_file *m, unsigned long address)
 
 static int leaks_show(struct seq_file *m, void *p)
 {
-       struct kmem_cache *cachep = p;
+       struct kmem_cache *cachep = list_entry(p, struct kmem_cache, next);
        struct slab *slabp;
        struct kmem_list3 *l3;
        const char *name;