diff options
| -rw-r--r-- | include/linux/huge_mm.h | 14 | ||||
| -rw-r--r-- | mm/huge_memory.c | 11 | ||||
| -rw-r--r-- | mm/khugepaged.c | 9 |
3 files changed, 18 insertions, 16 deletions
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h index fbf36bb1be22..de29821231c9 100644 --- a/include/linux/huge_mm.h +++ b/include/linux/huge_mm.h @@ -173,6 +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() \ diff --git a/mm/huge_memory.c b/mm/huge_memory.c index c37c870c526f..1a00bdf0f1e8 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -69,13 +69,6 @@ static atomic_t huge_zero_refcount; struct page *huge_zero_page __read_mostly; unsigned long huge_zero_pfn __read_mostly = ~0UL; -static inline bool file_thp_enabled(struct vm_area_struct *vma) -{ - return transhuge_vma_enabled(vma, vma->vm_flags) && vma->vm_file && - !inode_is_open_for_write(vma->vm_file->f_inode) && - (vma->vm_flags & VM_EXEC); -} - bool transparent_hugepage_active(struct vm_area_struct *vma) { /* The addr is used to check if the vma size fits */ @@ -87,8 +80,8 @@ bool transparent_hugepage_active(struct vm_area_struct *vma) return __transparent_hugepage_enabled(vma); if (vma_is_shmem(vma)) return shmem_huge_enabled(vma); - if (IS_ENABLED(CONFIG_READ_ONLY_THP_FOR_FS)) - return file_thp_enabled(vma); + if (transhuge_vma_enabled(vma, vma->vm_flags) && file_thp_enabled(vma)) + return true; return false; } diff --git a/mm/khugepaged.c b/mm/khugepaged.c index 647efd46b369..1f4822dcc970 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -464,13 +464,8 @@ static bool hugepage_vma_check(struct vm_area_struct *vma, return false; /* Only regular file is valid */ - if (IS_ENABLED(CONFIG_READ_ONLY_THP_FOR_FS) && vma->vm_file && - (vm_flags & VM_EXEC)) { - struct inode *inode = vma->vm_file->f_inode; - - return !inode_is_open_for_write(inode) && - S_ISREG(inode->i_mode); - } + if (file_thp_enabled(vma)) + return true; if (!vma->anon_vma || !vma_is_anonymous(vma)) return false; |