ANDROID: mm: create vendor hooks for mm proactive compact

Add vendor hook to bypass compact_node if fragmentation score is tiny

Bug: 391491611
Change-Id: I66df2bce09e08137e4812468e024fa24fcb97259
Signed-off-by: yipeng xiang <yipengxiang@honor.corp-partner.google.com>

drivers/android/vendor_hooks.c

@@ -62,6 +62,7 @@
 #include <trace/hooks/power.h>
 #include <trace/hooks/dmabuf.h>
 #include <trace/hooks/signal.h>
+#include <trace/hooks/compaction.h>
 #include <trace/events/android_vendor_lmk.h>
 
 
@@ -313,6 +314,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_vmalloc_node_bypass);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_vfree_bypass);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_modify_scan_control);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_should_continue_reclaim);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_proactive_compact_wmark_high);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_async_psi_bypass);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cma_alloc_retry);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_smaps_pte_entry);

include/trace/hooks/compaction.h

@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM compaction
+
+#define TRACE_INCLUDE_PATH trace/hooks
+
+#if !defined(_TRACE_HOOK_COMPACTION_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_HOOK_COMPACTION_H
+
+#include <trace/hooks/vendor_hooks.h>
+
+DECLARE_HOOK(android_vh_proactive_compact_wmark_high,
+	TP_PROTO(int *wmark_high),
+	TP_ARGS(wmark_high));
+#endif /* _TRACE_HOOK_COMPACTION_H */
+/* This part must be outside protection */
+#include <trace/define_trace.h>

mm/compaction.c

@@ -66,6 +66,7 @@ static inline bool is_via_compact_memory(int order) { return false; }
 #undef CREATE_TRACE_POINTS
 
 #include <trace/hooks/vmscan.h>
+#include <trace/hooks/compaction.h>
 
 #define block_start_pfn(pfn, order)	round_down(pfn, 1UL << (order))
 #define block_end_pfn(pfn, order)	ALIGN((pfn) + 1, 1UL << (order))
@@ -2285,6 +2286,7 @@ static bool should_proactive_compact_node(pg_data_t *pgdat)
 		return false;
 
 	wmark_high = fragmentation_score_wmark(false);
+	trace_android_vh_proactive_compact_wmark_high(&wmark_high);
 	return fragmentation_score_node(pgdat) > wmark_high;
 }