On 10/19/2012 11:47 PM, Christoph Lameter wrote: > On Fri, 19 Oct 2012, Glauber Costa wrote: > >> An unlikely branch is used to make sure this case does not affect >> performance in the usual slab_free path. >> >> The slab allocator has a time based reaper that would eventually get rid >> of the objects, but we can also call it explicitly, since dead caches >> are not a likely event. > > This is also something that could be done from slab_common since all > allocators have kmem_cache_shrink and kmem_cache_shrink can be used to > drain the caches and free up empty slab pages. > The changelog needs to be updated. I updated the code, forgot the changelog =( I am actually now following Tejun's last suggestion, and no longer using my old verify_dead code. So I am basically calling shrink_slab every once in a while until the cache disappears. The only change I still need in the allocators is to count the amount of pages they have, so I can differentiate between need-to-shrink and need-to-destroy -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>