On Fri 23-11-18 13:23:41, Vlastimil Babka wrote: > On 11/22/18 9:23 AM, Christoph Hellwig wrote: [...] > > But I do agree with the sentiment of not wanting to spread GFP_DMA32 > > futher into the slab allocator. > > I don't see a problem with GFP_DMA32 for custom caches. Generic > kmalloc() would be worse, since it would have to create a new array of > kmalloc caches. But that's already ruled out due to the alignment. Yes that makes quite a lot of sense to me. We do not really need a generic support. Just make sure that if somebody creates a GFP_DMA32 restricted cache then allow allocating restricted memory from that. Is there any fundamental reason that this wouldn't be possible? -- Michal Hocko SUSE Labs
