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Diffstat (limited to 'include/linux/huge_mm.h')
-rw-r--r--include/linux/huge_mm.h20
1 files changed, 17 insertions, 3 deletions
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 2999190adc22..de29821231c9 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -36,8 +36,9 @@ int zap_huge_pud(struct mmu_gather *tlb, struct vm_area_struct *vma, pud_t *pud,
unsigned long addr);
bool move_huge_pmd(struct vm_area_struct *vma, unsigned long old_addr,
unsigned long new_addr, pmd_t *old_pmd, pmd_t *new_pmd);
-int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd, unsigned long addr,
- pgprot_t newprot, unsigned long cp_flags);
+int change_huge_pmd(struct mmu_gather *tlb, struct vm_area_struct *vma,
+ pmd_t *pmd, unsigned long addr, pgprot_t newprot,
+ unsigned long cp_flags);
vm_fault_t vmf_insert_pfn_pmd_prot(struct vm_fault *vmf, pfn_t pfn,
pgprot_t pgprot, bool write);
@@ -172,6 +173,20 @@ static inline bool __transparent_hugepage_enabled(struct vm_area_struct *vma)
return false;
}
+static inline bool file_thp_enabled(struct vm_area_struct *vma)
+{
+ struct inode *inode;
+
+ if (!vma->vm_file)
+ return false;
+
+ inode = vma->vm_file->f_inode;
+
+ return (IS_ENABLED(CONFIG_READ_ONLY_THP_FOR_FS)) &&
+ (vma->vm_flags & VM_EXEC) &&
+ !inode_is_open_for_write(inode) && S_ISREG(inode->i_mode);
+}
+
bool transparent_hugepage_active(struct vm_area_struct *vma);
#define transparent_hugepage_use_zero_page() \
@@ -347,7 +362,6 @@ static inline void prep_transhuge_page(struct page *page) {}
static inline bool
can_split_folio(struct folio *folio, int *pextra_pins)
{
- BUILD_BUG();
return false;
}
static inline int