Christoph Lameter <c...@linux.com> writes: > On Thu, 1 Jun 2017, Hugh Dickins wrote: > >> Thanks a lot for working that out. Makes sense, fully understood now, >> nothing to worry about (though makes one wonder whether it's efficient >> to use ctors on high-alignment caches; or whether an internal "zero-me" >> ctor would be useful). > > Use kzalloc to zero it.
But that's changing a per slab creation memset into a per object allocation memset, isn't it? > And here is another example of using slab allocations for page frames. > Use the page allocator for this? The page allocator is there for > allocating page frames. The slab allocator main purpose is to allocate > small objects.... Well usually they are small (< PAGE_SIZE), because we have 64K pages. But we could rework the code to use the page allocator on 4K configs. cheers
