linux518/519: Add MGLRU patchset on a toggle and enable by default - https://lore.kernel.org/lkml/20220706220022.968789-1-yuzhao@google.com/

We've been offering the patchset in community patches for a while now with very good feedback

linux-tkg-config/prepare

@@ -1181,6 +1181,24 @@ _tkg_srcprep() {
     fi
   fi
 
+  # MGLRU
+  tkgpatch="$srcdir/0010-lru_${_basekernel}.patch"
+  if [ -e "$tkgpatch" ] && [ "$_bcachefs" != "true" ] && [[ ! "$CONDITION8" =~ [yY] ]]; then
+    if [ -z "$_mglru" ]; then
+       plain ""
+       plain "Add multi-generational LRU framework support? "
+       plain "https://lore.kernel.org/lkml/20220706220022.968789-1-yuzhao@google.com/"
+       read -rp "`echo $'    > N/y : '`" CONDITION_mglru;
+    fi
+    if [[ "$CONDITION_mglru" =~ [yY] ]] || [ "$_mglru" = "true" ]; then
+       _msg="Patching MGLRU in"
+       _tkg_patcher
+
+       _enable "LRU_GEN" "LRU_GEN_ENABLED"
+       _disable "LRU_GEN_STATS"
+    fi
+  fi
+
   # futex_waitv support
   tkgpatch="$srcdir/0007-v${_basekernel}-futex_waitv.patch"
   if [ -e "$tkgpatch" ]; then