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Diffstat (limited to 'mm/slub.c')
-rw-r--r--mm/slub.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/mm/slub.c b/mm/slub.c
index 862dbd9af4f5..4b98dff9be8e 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -310,6 +310,11 @@ static inline void stat(const struct kmem_cache *s, enum stat_item si)
*/
static nodemask_t slab_nodes;
+/*
+ * Workqueue used for flush_cpu_slab().
+ */
+static struct workqueue_struct *flushwq;
+
/********************************************************************
* Core slab cache functions
*******************************************************************/
@@ -2730,7 +2735,7 @@ static void flush_all_cpus_locked(struct kmem_cache *s)
INIT_WORK(&sfw->work, flush_cpu_slab);
sfw->skip = false;
sfw->s = s;
- schedule_work_on(cpu, &sfw->work);
+ queue_work_on(cpu, flushwq, &sfw->work);
}
for_each_online_cpu(cpu) {
@@ -4858,6 +4863,8 @@ void __init kmem_cache_init(void)
void __init kmem_cache_init_late(void)
{
+ flushwq = alloc_workqueue("slub_flushwq", WQ_MEM_RECLAIM, 0);
+ WARN_ON(!flushwq);
}
struct kmem_cache *
@@ -4926,6 +4933,8 @@ void *__kmalloc_track_caller(size_t size, gfp_t gfpflags, unsigned long caller)
/* Honor the call site pointer we received. */
trace_kmalloc(caller, ret, s, size, s->size, gfpflags);
+ ret = kasan_kmalloc(s, ret, size, gfpflags);
+
return ret;
}
EXPORT_SYMBOL(__kmalloc_track_caller);
@@ -4957,6 +4966,8 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags,
/* Honor the call site pointer we received. */
trace_kmalloc_node(caller, ret, s, size, s->size, gfpflags, node);
+ ret = kasan_kmalloc(s, ret, size, gfpflags);
+
return ret;
}
EXPORT_SYMBOL(__kmalloc_node_track_caller);
@@ -5890,7 +5901,8 @@ static char *create_unique_id(struct kmem_cache *s)
char *name = kmalloc(ID_STR_LENGTH, GFP_KERNEL);
char *p = name;
- BUG_ON(!name);
+ if (!name)
+ return ERR_PTR(-ENOMEM);
*p++ = ':';
/*
@@ -5948,6 +5960,8 @@ static int sysfs_slab_add(struct kmem_cache *s)
* for the symlinks.
*/
name = create_unique_id(s);
+ if (IS_ERR(name))
+ return PTR_ERR(name);
}
s->kobj.kset = kset;