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-rw-r--r--mm/slab.c8
-rw-r--r--mm/slab.h1
-rw-r--r--mm/slab_common.c15
3 files changed, 8 insertions, 16 deletions
diff --git a/mm/slab.c b/mm/slab.c
index eae2d21cc14f..a2152a2573dd 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -4043,12 +4043,6 @@ ssize_t slabinfo_write(struct file *file, const char __user *buffer,
#ifdef CONFIG_DEBUG_SLAB_LEAK
-static void *leaks_start(struct seq_file *m, loff_t *pos)
-{
- mutex_lock(&slab_mutex);
- return seq_list_start(&slab_caches, *pos);
-}
-
static inline int add_caller(unsigned long *n, unsigned long v)
{
unsigned long *p;
@@ -4170,7 +4164,7 @@ static int leaks_show(struct seq_file *m, void *p)
}
static const struct seq_operations slabstats_op = {
- .start = leaks_start,
+ .start = slab_start,
.next = slab_next,
.stop = slab_stop,
.show = leaks_show,
diff --git a/mm/slab.h b/mm/slab.h
index ab019e63e3c2..53a55c70c409 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -357,6 +357,7 @@ static inline struct kmem_cache_node *get_node(struct kmem_cache *s, int node)
#endif
+void *slab_start(struct seq_file *m, loff_t *pos);
void *slab_next(struct seq_file *m, void *p, loff_t *pos);
void slab_stop(struct seq_file *m, void *p);
diff --git a/mm/slab_common.c b/mm/slab_common.c
index dcdab81bd240..06aeaf091f21 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -834,14 +834,9 @@ void print_slabinfo_header(struct seq_file *m)
seq_putc(m, '\n');
}
-static void *s_start(struct seq_file *m, loff_t *pos)
+void *slab_start(struct seq_file *m, loff_t *pos)
{
- loff_t n = *pos;
-
mutex_lock(&slab_mutex);
- if (!n)
- print_slabinfo_header(m);
-
return seq_list_start(&slab_caches, *pos);
}
@@ -903,10 +898,12 @@ int cache_show(struct kmem_cache *s, struct seq_file *m)
return 0;
}
-static int s_show(struct seq_file *m, void *p)
+static int slab_show(struct seq_file *m, void *p)
{
struct kmem_cache *s = list_entry(p, struct kmem_cache, list);
+ if (p == slab_caches.next)
+ print_slabinfo_header(m);
if (!is_root_cache(s))
return 0;
return cache_show(s, m);
@@ -926,10 +923,10 @@ static int s_show(struct seq_file *m, void *p)
* + further values on SMP and with statistics enabled
*/
static const struct seq_operations slabinfo_op = {
- .start = s_start,
+ .start = slab_start,
.next = slab_next,
.stop = slab_stop,
- .show = s_show,
+ .show = slab_show,
};
static int slabinfo_open(struct inode *inode, struct file *file)