From f9004dbfff8a3fbbd7e2a88c8a4327c7f2f8e5b2 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 01:04:47 +0000
Subject: [PATCH] add driver 5G
---
kernel/include/linux/khugepaged.h | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/kernel/include/linux/khugepaged.h b/kernel/include/linux/khugepaged.h
index dc9a2ee..2fcc018 100644
--- a/kernel/include/linux/khugepaged.h
+++ b/kernel/include/linux/khugepaged.h
@@ -3,6 +3,7 @@
#define _LINUX_KHUGEPAGED_H
#include <linux/sched/coredump.h> /* MMF_VM_HUGEPAGE */
+#include <linux/shmem_fs.h>
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
@@ -16,6 +17,14 @@
extern int khugepaged_enter_vma_merge(struct vm_area_struct *vma,
unsigned long vm_flags);
extern void khugepaged_min_free_kbytes_update(void);
+#ifdef CONFIG_SHMEM
+extern void collapse_pte_mapped_thp(struct mm_struct *mm, unsigned long addr);
+#else
+static inline void collapse_pte_mapped_thp(struct mm_struct *mm,
+ unsigned long addr)
+{
+}
+#endif
#define khugepaged_enabled() \
(transparent_hugepage_flags & \
@@ -49,6 +58,7 @@
{
if (!test_bit(MMF_VM_HUGEPAGE, &vma->vm_mm->flags))
if ((khugepaged_always() ||
+ (shmem_file(vma->vm_file) && shmem_huge_enabled(vma)) ||
(khugepaged_req_madv() && (vm_flags & VM_HUGEPAGE))) &&
!(vm_flags & VM_NOHUGEPAGE) &&
!test_bit(MMF_DISABLE_THP, &vma->vm_mm->flags))
@@ -74,6 +84,10 @@
{
return 0;
}
+static inline void collapse_pte_mapped_thp(struct mm_struct *mm,
+ unsigned long addr)
+{
+}
static inline void khugepaged_min_free_kbytes_update(void)
{
--
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