From bb9c59d1f1b4cb245834310457365b42bc64aa7c Mon Sep 17 00:00:00 2001 From: chunpeng li Date: Thu, 22 Aug 2024 15:47:58 +0800 Subject: [PATCH] ANDROID: vendor_hook: customize gfp and orders to alloc large folio This hook is used to dynamic modify: 1.gfp_mask, which control behavior for allocation. 2.orders, which control highest order to try alloc folio. 3.order, which need assign `order = highest_order(orders);` Bug: 438090847 Change-Id: Id2e89a2c674acb7bea6867cdb9f84163c266d7db Signed-off-by: chunpeng li Signed-off-by: yan chang --- drivers/android/vendor_hooks.c | 1 + include/trace/hooks/mm.h | 3 +++ mm/memory.c | 1 + 3 files changed, 5 insertions(+) diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c index 5f19d226e631..4b1a7bdd3615 100644 --- a/drivers/android/vendor_hooks.c +++ b/drivers/android/vendor_hooks.c @@ -581,6 +581,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_pr_set_vma_name_bypass); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mem_cgroup_charge); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_filemap_add_folio); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_shrink_node); +EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_customize_thp_gfp_orders); EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_cpuset_fork); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_alloc_uid); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_free_user); diff --git a/include/trace/hooks/mm.h b/include/trace/hooks/mm.h index 9bf35e210937..aeaf65321c65 100644 --- a/include/trace/hooks/mm.h +++ b/include/trace/hooks/mm.h @@ -600,6 +600,9 @@ DECLARE_HOOK(android_vh_mm_split_huge_page_bypass, DECLARE_HOOK(android_vh_mm_try_split_folio_bypass, TP_PROTO(struct folio *folio, bool *bypass), TP_ARGS(folio, bypass)); +DECLARE_HOOK(android_vh_customize_thp_gfp_orders, + TP_PROTO(gfp_t *gfp_mask, unsigned long *orders, int *order), + TP_ARGS(gfp_mask, orders, order)); #endif /* _TRACE_HOOK_MM_H */ /* This part must be outside protection */ diff --git a/mm/memory.c b/mm/memory.c index bcee414a7fba..48c51aaf84bf 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -4745,6 +4745,7 @@ static struct folio *alloc_anon_folio(struct vm_fault *vmf) if (folio) goto allocated; + trace_android_vh_customize_thp_gfp_orders(&gfp, &orders, &order); while (orders) { addr = ALIGN_DOWN(vmf->address, PAGE_SIZE << order); folio = vma_alloc_folio(gfp, order, vma, addr, true);