From b047501cd9f11d5e1d54ea0f90e2b10754021a0e Mon Sep 17 00:00:00 2001 From: Vladimir Davydov Date: Wed, 10 Dec 2014 15:44:19 -0800 Subject: memcg: use generic slab iterators for showing slabinfo Let's use generic slab_start/next/stop for showing memcg caches info. In contrast to the current implementation, this will work even if all memcg caches' info doesn't fit into a seq buffer (a page), plus it simply looks neater. Actually, the main reason I do this isn't mere cleanup. I'm going to zap the memcg_slab_caches list, because I find it useless provided we have the slab_caches list, and this patch is a step in this direction. It should be noted that before this patch an attempt to read memory.kmem.slabinfo of a cgroup that doesn't have kmem limit set resulted in -EIO, while after this patch it will silently show nothing except the header, but I don't think it will frustrate anyone. Signed-off-by: Vladimir Davydov Cc: Christoph Lameter Cc: Pekka Enberg Cc: David Rientjes Cc: Joonsoo Kim Cc: Johannes Weiner Cc: Michal Hocko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/slab.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include/linux/slab.h') diff --git a/include/linux/slab.h b/include/linux/slab.h index c265bec6a57d..8a2457d42fc8 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -513,10 +513,6 @@ struct memcg_cache_params { int memcg_update_all_caches(int num_memcgs); -struct seq_file; -int cache_show(struct kmem_cache *s, struct seq_file *m); -void print_slabinfo_header(struct seq_file *m); - /** * kmalloc_array - allocate memory for an array. * @n: number of elements. -- cgit v1.2.3-58-ga151