diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mm.h | 3 | ||||
| -rw-r--r-- | include/linux/mm_types.h | 3 |
2 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index cf3d0d673f6b..02e5bc1a17ac 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -463,7 +463,8 @@ static inline bool fault_flag_allow_retry_first(enum fault_flag flags) { FAULT_FLAG_USER, "USER" }, \ { FAULT_FLAG_REMOTE, "REMOTE" }, \ { FAULT_FLAG_INSTRUCTION, "INSTRUCTION" }, \ - { FAULT_FLAG_INTERRUPTIBLE, "INTERRUPTIBLE" } + { FAULT_FLAG_INTERRUPTIBLE, "INTERRUPTIBLE" }, \ + { FAULT_FLAG_PAGE_SPLIT, "PAGESPLIT" } /* * vm_fault is filled by the pagefault handler and passed to the vma's diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index c29ab4c0cd5c..d653ee873d7d 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -829,6 +829,8 @@ typedef struct { * mapped R/O. * @FAULT_FLAG_ORIG_PTE_VALID: whether the fault has vmf->orig_pte cached. * We should only access orig_pte if this flag set. + * @FAULT_FLAG_PAGE_SPLIT: The fault was due page size mismatch, split the + * region to smaller page size and retry. * * About @FAULT_FLAG_ALLOW_RETRY and @FAULT_FLAG_TRIED: we can specify * whether we would allow page faults to retry by specifying these two @@ -866,6 +868,7 @@ enum fault_flag { FAULT_FLAG_INTERRUPTIBLE = 1 << 9, FAULT_FLAG_UNSHARE = 1 << 10, FAULT_FLAG_ORIG_PTE_VALID = 1 << 11, + FAULT_FLAG_PAGE_SPLIT = 1 << 12, }; typedef unsigned int __bitwise zap_flags_t; |