--- zzzz-none-000/linux-4.4.60/include/linux/mm_types.h	2017-04-08 07:53:53.000000000 +0000
+++ hawkeye-5590-729/linux-4.4.60/include/linux/mm_types.h	2022-03-30 14:21:53.000000000 +0000
@@ -239,7 +239,16 @@
 #endif
 };
 
+/* The 1200ax was not designed with enough memory, we need the workaround
+ * from the 1750e to get it working even on product launch.
+ * Drop PAGE_FRAG_CACHE from 32768 -> 8192
+ */
+#ifdef CONFIG_AVM_OOM_MITIGATION_PAGE_FRAG_CACHE
+#define PAGE_FRAG_CACHE_MAX_SIZE	__ALIGN_MASK(8192, ~PAGE_MASK)
+#else
 #define PAGE_FRAG_CACHE_MAX_SIZE	__ALIGN_MASK(32768, ~PAGE_MASK)
+#endif
+
 #define PAGE_FRAG_CACHE_MAX_ORDER	get_order(PAGE_FRAG_CACHE_MAX_SIZE)
 
 struct page_frag_cache {
@@ -368,10 +377,14 @@
 	struct completion startup;
 };
 
+#define AVM_ENH_SWAP_STATS 1
+
 enum {
 	MM_FILEPAGES,
 	MM_ANONPAGES,
 	MM_SWAPENTS,
+	MM_SWAPOUTS,
+	MM_SWAPINS,
 	NR_MM_COUNTERS
 };
 
@@ -392,7 +405,7 @@
 struct mm_struct {
 	struct vm_area_struct *mmap;		/* list of VMAs */
 	struct rb_root mm_rb;
-	u32 vmacache_seqnum;                   /* per-thread vmacache */
+	u64 vmacache_seqnum;                   /* per-thread vmacache */
 #ifdef CONFIG_MMU
 	unsigned long (*get_unmapped_area) (struct file *filp,
 				unsigned long addr, unsigned long len,