On Fri, Aug 25, 2017 at 09:56:10AM +0200, Vlastimil Babka wrote: > On 08/25/2017 02:20 AM, Joonsoo Kim wrote: > > On Thu, Aug 24, 2017 at 11:41:58AM +0200, Vlastimil Babka wrote: > > > > Hmm, this is already pointed by Minchan and I have answered that. > > > > lkml.kernel.org/r/<20170421013243.GA13966@js1304-desktop> > > > > If you have a better idea, please let me know. > > My idea is that size of sysctl_lowmem_reserve_ratio is ZONE_NORMAL+1 and > it has no entries for zones > NORMAL. The > setup_per_zone_lowmem_reserve() is adjusted to only set > lower_zone->lowmem_reserve[j] for idx <= ZONE_NORMAL. > > I can't imagine somebody would want override the ratio for HIGHMEM or > MOVABLE > (where it has no effect anyway) so the simplest thing is not to expose > it at all. Seems reasonable. However, if there is a user who checks sysctl_lowmem_reserve_ratio entry for HIGHMEM and change it, suggested interface will cause a problem since it doesn't expose ratio for HIGHMEM. Am I missing something? Thanks. > > > Thanks. > > > > -- > 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> -- 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>
