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ANDROID: Make MGLRU aware of speculative faults

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Bug: 228525049
Bug: 227651406
Change-Id: Ib3d45f74c5c23cbb1af7aaf95c90826baf406c7a
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
This commit is contained in:
Kalesh Singh
2022-04-22 08:47:55 -07:00
parent e7c680add6
commit 88e4dbaf59
1 changed files with 6 additions and 0 deletions
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6
mm/memory.c
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@@ -4892,6 +4892,10 @@ static inline void mm_account_fault(struct pt_regs *regs,
else else
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs, address); perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs, address);
} }
static void lru_gen_enter_fault(struct vm_area_struct *vma);
static void lru_gen_exit_fault(void);
#ifdef CONFIG_SPECULATIVE_PAGE_FAULT #ifdef CONFIG_SPECULATIVE_PAGE_FAULT
#ifndef CONFIG_ARCH_HAS_PTE_SPECIAL #ifndef CONFIG_ARCH_HAS_PTE_SPECIAL
@@ -5083,7 +5087,9 @@ static vm_fault_t ___handle_speculative_fault(struct mm_struct *mm,
} }
mem_cgroup_enter_user_fault(); mem_cgroup_enter_user_fault();
lru_gen_enter_fault(vmf.vma);
ret = handle_pte_fault(&vmf); ret = handle_pte_fault(&vmf);
lru_gen_exit_fault();
mem_cgroup_exit_user_fault(); mem_cgroup_exit_user_fault();
if (ret != VM_FAULT_RETRY) { if (ret != VM_FAULT_RETRY) {