On Tue, Nov 10, 2015 at 09:34:05PM +0300, Vladimir Davydov wrote: > Currently, if we want to account all objects of a particular kmem cache, > we have to pass __GFP_ACCOUNT to each kmem_cache_alloc call, which is > inconvenient. This patch introduces SLAB_ACCOUNT flag which if passed to > kmem_cache_create will force accounting for every allocation from this > cache even if __GFP_ACCOUNT is not passed. > > This patch does not make any of the existing caches use this flag - it > will be done later in the series. > > Note, a cache with SLAB_ACCOUNT cannot be merged with a cache w/o > SLAB_ACCOUNT, i.e. using this flag will probably reduce the number of > merged slabs even if kmem accounting is not used (only compiled in). Am I correct in thinking that we should eventually be able to removed __GFP_ACCOUNT and that only caches explicitly marked with SLAB_ACCOUNT would need to be handled by kmemcg? Thanks a lot for doing this! -- tejun -- 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>