>Hmm...like this ? > sysctl.vm.fallback_mirror_memory = 0 // never fallback # default. > sysctl.vm.fallback_mirror_memory = 1 // the user memory may be > allocated from mirrored zone. > sysctl.vm.fallback_mirror_memory = 2 // usually kernel allocates > memory from mirrored zone before OOM. > sysctl.vm.fallback_mirror_memory = 3 // 1+2
Should option 2 say: // allow kernel to allocate from non-mirror zone to avoid OOM > However I believe my customer's choice is always 0, above implementation can > be done in a clean way. > (adding a flag to zones (mirrored or not) and controlling fallback zonelist > walk.) Modes allow us to make all of the people happy (I hope). > BTW, we need this Taku's patch to make a progress. I think other devs should > be done in another > development cycle. What does he need to get your Acks ? The concept is great. It's even "Tested-by: Tony Luck <tony.l...@intel.com>". I need to read the code more carefully before Acked-by. -Tony -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
