On Wed, 18 Jul 2018, Vlastimil Babka wrote: > In SLAB, OFF_SLAB caches allocate management structures (currently just the > freelist) from kmalloc caches when placement in a slab page together with > objects would lead to suboptimal memory usage. For SLAB_RECLAIM_ACCOUNT > caches, > we can allocate the freelists from the newly introduced reclaimable kmalloc > caches, because shrinking the OFF_SLAB cache will in general result to freeing > of the freelists as well. This should improve accounting and > anti-fragmentation > a bit.
Acked-by: Christoph Lameter <[email protected]>
