On 02/16/2018 12:15 PM, Christopher Lameter wrote: >> This has the potential to be really confusing to apps. If this memory >> is now not available to normal apps, they might plow into the invisible >> memory limits and get into nasty reclaim scenarios. >> Shouldn't this subtract the memory for MemFree and friends? > Ok certainly we could do that. But on the other hand the memory is > available if those subsystems ask for the right order. Its not clear to me > what the right way of handling this is. Right now it adds the reserved > pages to the watermarks. But then under some circumstances the memory is > available. What is the best solution here? There's definitely no perfect solution. But, in general, I think we should cater to the dumbest users. Folks doing higher-order allocations are not that. I say we make the picture the most clear for the traditional 4k users. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
