diff options
Diffstat (limited to 'include/linux/mm_types.h')
| -rw-r--r-- | include/linux/mm_types.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 15549578d559..3d6baa7d4534 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -235,7 +235,7 @@ struct page_frag_cache { bool pfmemalloc; }; -typedef unsigned long __nocast vm_flags_t; +typedef unsigned long vm_flags_t; /* * A region containing a mapping of a non-memory backed file under NOMMU @@ -256,6 +256,16 @@ struct vm_region { * this region */ }; +#ifdef CONFIG_USERFAULTFD +#define NULL_VM_UFFD_CTX ((struct vm_userfaultfd_ctx) { NULL, }) +struct vm_userfaultfd_ctx { + struct userfaultfd_ctx *ctx; +}; +#else /* CONFIG_USERFAULTFD */ +#define NULL_VM_UFFD_CTX ((struct vm_userfaultfd_ctx) {}) +struct vm_userfaultfd_ctx {}; +#endif /* CONFIG_USERFAULTFD */ + /* * This struct defines a memory VMM memory area. There is one of these * per VM-area/task. A VM area is any part of the process virtual memory @@ -322,6 +332,7 @@ struct vm_area_struct { #ifdef CONFIG_NUMA struct mempolicy *vm_policy; /* NUMA policy for the VMA */ #endif + struct vm_userfaultfd_ctx vm_userfaultfd_ctx; }; struct core_thread { @@ -543,6 +554,7 @@ enum tlb_flush_reason { TLB_REMOTE_SHOOTDOWN, TLB_LOCAL_SHOOTDOWN, TLB_LOCAL_MM_SHOOTDOWN, + TLB_REMOTE_SEND_IPI, NR_TLB_FLUSH_REASONS, }; |