On Wed, 23 May 2018 05:14:36 +0800 kbuild test robot <lkp@xxxxxxxxx> wrote: > Thank you for the patch! Yet something to improve: > > [auto build test ERROR on mmotm/master] > [also build test ERROR on v4.17-rc6 next-20180517] > [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] > > url: https://github.com/0day-ci/linux/commits/Shakeel-Butt/mm-fix-race-between-kmem_cache-destroy-create-and-deactivate/20180523-041715 > base: git://git.cmpxchg.org/linux-mmotm.git master > config: i386-randconfig-x009-201820 (attached as .config) > compiler: gcc-7 (Debian 7.3.0-16) 7.3.0 > reproduce: > # save the attached .config to linux build tree > make ARCH=i386 > > All errors (new ones prefixed by >>): > > mm/slub.c: In function '__kmem_cache_alias': > >> mm/slub.c:4251:4: error: implicit declaration of function 'kmem_cache_put_locked'; did you mean 'kmem_cache_init_late'? [-Werror=implicit-function-declaration] > kmem_cache_put_locked(s); > ^~~~~~~~~~~~~~~~~~~~~ > kmem_cache_init_late > cc1: some warnings being treated as errors Thanks. --- a/mm/slab.h~mm-fix-race-between-kmem_cache-destroy-create-and-deactivate-v2-fix +++ a/mm/slab.h @@ -204,6 +204,8 @@ ssize_t slabinfo_write(struct file *file void __kmem_cache_free_bulk(struct kmem_cache *, size_t, void **); int __kmem_cache_alloc_bulk(struct kmem_cache *, gfp_t, size_t, void **); +extern void kmem_cache_put_locked(struct kmem_cache *s); + #if defined(CONFIG_MEMCG) && !defined(CONFIG_SLOB) /* List of all root caches. */ @@ -296,7 +298,6 @@ extern void slab_init_memcg_params(struc extern void memcg_link_cache(struct kmem_cache *s); extern void slab_deactivate_memcg_cache_rcu_sched(struct kmem_cache *s, void (*deact_fn)(struct kmem_cache *)); -extern void kmem_cache_put_locked(struct kmem_cache *s); #else /* CONFIG_MEMCG && !CONFIG_SLOB */ /* If !memcg, all caches are root. */ _
