On Thu, Jul 24, 2014 at 03:41:06PM -0700, David Rientjes wrote: > __GFP_NO_KSWAPD, once the way to determine if an allocation was for thp or > not, > has gained more users. Their use is not necessarily wrong, they are trying > to > do a memory allocation that can easily fail without disturbing kswapd, so the > bit has gained additional usecases. > > This restructures the check to determine whether MIGRATE_SYNC_LIGHT should be > used for memory compaction in the page allocator. Rather than testing solely > for __GFP_NO_KSWAPD, test for all bits that must be set for thp allocations. > > This also moves the check to be done only after the page allocator is aborted > for deferred or contended memory compaction since setting migration_mode for > this case is pointless. > > Signed-off-by: David Rientjes <[email protected]>
Acked-by: Mel Gorman <[email protected]> -- Mel Gorman SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
