Commit 4307c14f authored by Gu Zheng's avatar Gu Zheng Committed by Linus Torvalds

slab: fix the alias count (via sysfs) of slab cache

We mark some slab caches (e.g.  kmem_cache_node) as unmergeable by
setting refcount to -1, and their alias should be 0, not refcount-1, so
correct it here.
Signed-off-by: default avatarGu Zheng <>
Acked-by: default avatarDavid Rientjes <>
Cc: Christoph Lameter <>
Cc: Pekka Enberg <>
Cc: Joonsoo Kim <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent 0aa9a13d
......@@ -4466,7 +4466,7 @@ SLAB_ATTR_RO(ctor);
static ssize_t aliases_show(struct kmem_cache *s, char *buf)
return sprintf(buf, "%d\n", s->refcount - 1);
return sprintf(buf, "%d\n", s->refcount < 0 ? 0 : s->refcount - 1);
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