2012/10/22 Christoph Lameter <cl@xxxxxxxxx>: > On Sun, 21 Oct 2012, Joonsoo Kim wrote: > >> kmalloc() and kmalloc_node() of the SLUB isn't inlined when @flags = __GFP_DMA. >> This patch optimize this case, >> so when @flags = __GFP_DMA, it will be inlined into generic code. > > __GFP_DMA is a rarely used flag for kmalloc allocators and so far it was > not considered that it is worth to directly support it in the inlining > code. > > Hmm... but, the SLAB already did that optimization for __GFP_DMA. Almost every kmalloc() is invoked with constant flags value, so I think that overhead from this patch may be negligible. With this patch, code size of vmlinux is reduced slightly. -- 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>