On Mon, Feb 21, 2022 at 03:53:39PM +0000, Matthew Wilcox wrote: > On Mon, Feb 21, 2022 at 10:53:34AM +0000, Hyeonggon Yoo wrote: > > SLAB's kfree() does not support freeing an object that is allocated from > > kmalloc_large(). Fix this as SLAB do not pass requests larger than > > KMALLOC_MAX_CACHE_SIZE directly to page allocator. > > I was wondering if we wanted to go in the other direction and get rid of > kmalloc cache sizes larger than, say, 64kB from the SLAB allocator. Good point. Hmm.. I don't think SLAB is benefiting from queueing that large objects, and maximum size is still limited to what buddy allocator supports. I'll try reducing kmalloc caches up to order-1 page like SLUB. That would be easier to maintain. Thanks, Hyeonggon
