diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/userfaultfd_k.h | 2 | ||||
| -rw-r--r-- | include/uapi/linux/userfaultfd.h | 11 |
2 files changed, 7 insertions, 6 deletions
diff --git a/include/linux/userfaultfd_k.h b/include/linux/userfaultfd_k.h index 7b91b76aac58..dcd33172b728 100644 --- a/include/linux/userfaultfd_k.h +++ b/include/linux/userfaultfd_k.h @@ -36,7 +36,7 @@ extern vm_fault_t handle_userfault(struct vm_fault *vmf, unsigned long reason); extern ssize_t mcopy_atomic(struct mm_struct *dst_mm, unsigned long dst_start, unsigned long src_start, unsigned long len, - bool *mmap_changing); + bool *mmap_changing, __u64 mode); extern ssize_t mfill_zeropage(struct mm_struct *dst_mm, unsigned long dst_start, unsigned long len, diff --git a/include/uapi/linux/userfaultfd.h b/include/uapi/linux/userfaultfd.h index 48f1a7c2f1f0..340f23bc251d 100644 --- a/include/uapi/linux/userfaultfd.h +++ b/include/uapi/linux/userfaultfd.h @@ -203,13 +203,14 @@ struct uffdio_copy { __u64 dst; __u64 src; __u64 len; +#define UFFDIO_COPY_MODE_DONTWAKE ((__u64)1<<0) /* - * There will be a wrprotection flag later that allows to map - * pages wrprotected on the fly. And such a flag will be - * available if the wrprotection ioctl are implemented for the - * range according to the uffdio_register.ioctls. + * UFFDIO_COPY_MODE_WP will map the page write protected on + * the fly. UFFDIO_COPY_MODE_WP is available only if the + * write protected ioctl is implemented for the range + * according to the uffdio_register.ioctls. */ -#define UFFDIO_COPY_MODE_DONTWAKE ((__u64)1<<0) +#define UFFDIO_COPY_MODE_WP ((__u64)1<<1) __u64 mode; /* |