diff options
Diffstat (limited to 'include/linux/mm.h')
| -rw-r--r-- | include/linux/mm.h | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index d8b75d7d6a9e..c65aa43b5712 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -285,11 +285,6 @@ extern pgprot_t protection_map[16]; #define FAULT_FLAG_REMOTE 0x80 /* faulting for non current tsk/mm */ #define FAULT_FLAG_INSTRUCTION 0x100 /* The fault was during an instruction fetch */ -#define FAULT_FLAG_SIZE_MASK 0x7000 /* Support up to 8-level page tables */ -#define FAULT_FLAG_SIZE_PTE 0x0000 /* First level (eg 4k) */ -#define FAULT_FLAG_SIZE_PMD 0x1000 /* Second level (eg 2MB) */ -#define FAULT_FLAG_SIZE_PUD 0x2000 /* Third level (eg 1GB) */ - #define FAULT_FLAG_TRACE \ { FAULT_FLAG_WRITE, "WRITE" }, \ { FAULT_FLAG_MKWRITE, "MKWRITE" }, \ @@ -349,6 +344,13 @@ struct vm_fault { */ }; +/* page entry size for vm->huge_fault() */ +enum page_entry_size { + PE_SIZE_PTE = 0, + PE_SIZE_PMD, + PE_SIZE_PUD, +}; + /* * These are the virtual MM functions - opening of an area, closing and * unmapping it (needed to keep files on disk up-to-date etc), pointer @@ -359,7 +361,7 @@ struct vm_operations_struct { void (*close)(struct vm_area_struct * area); int (*mremap)(struct vm_area_struct * area); int (*fault)(struct vm_fault *vmf); - int (*huge_fault)(struct vm_fault *vmf); + int (*huge_fault)(struct vm_fault *vmf, enum page_entry_size pe_size); void (*map_pages)(struct vm_fault *vmf, pgoff_t start_pgoff, pgoff_t end_pgoff); |