linux-master/fs/userfaultfd.c

135 	if (len && (start > uwq->msg.arg.pagefault.address ||
136 		    start + len <= uwq->msg.arg.pagefault.address))
217 	msg.arg.pagefault.address = (features & UFFD_FEATURE_EXACT_ADDRESS) ?
230 		msg.arg.pagefault.flags |= UFFD_PAGEFAULT_FLAG_WRITE;
232 		msg.arg.pagefault.flags |= UFFD_PAGEFAULT_FLAG_WP;
234 		msg.arg.pagefault.flags |= UFFD_PAGEFAULT_FLAG_MINOR;
236 		msg.arg.pagefault.feat.ptid = task_pid_vnr(current);
601 					ewq->msg.arg.reserved.reserved1;
718 	ewq.msg.arg.reserved.reserved1 = (unsigned long)fctx->new;
776 	ewq.msg.arg.remap.from = from;
777 	ewq.msg.arg.remap.to = to;
778 	ewq.msg.arg.remap.len = len;
803 	ewq.msg.arg.remove.start = start;
804 	ewq.msg.arg.remove.end = end;
859 		ewq.msg.arg.remove.start = ctx->start;
860 		ewq.msg.arg.remove.end = ctx->end;
1018 	msg->arg.reserved.reserved1 = 0;
1019 	msg->arg.fork.ufd = fd;
1098 					uwq->msg.arg.reserved.reserved1;
1293 				unsigned long arg)
1307 	user_uffdio_register = (struct uffdio_register __user *) arg;
1516 				  unsigned long arg)
1525 	const void __user *buf = (void __user *)arg;
1663 			    unsigned long arg)
1668 	const void __user *buf = (void __user *)arg;
1695 			    unsigned long arg)
1703 	user_uffdio_copy = (struct uffdio_copy __user *) arg;
1752 				unsigned long arg)
1759 	user_uffdio_zeropage = (struct uffdio_zeropage __user *) arg;
1803 				    unsigned long arg)
1814 	user_uffdio_wp = (struct uffdio_writeprotect __user *) arg;
1854 static int userfaultfd_continue(struct userfaultfd_ctx *ctx, unsigned long arg)
1862 	user_uffdio_continue = (struct uffdio_continue __user *)arg;
1912 static inline int userfaultfd_poison(struct userfaultfd_ctx *ctx, unsigned long arg)
1919 	user_uffdio_poison = (struct uffdio_poison __user *)arg;
1981 			    unsigned long arg)
1989 	user_uffdio_move = (struct uffdio_move __user *) arg;
2047 			   unsigned long arg)
2050 	void __user *buf = (void __user *)arg;
2106 			      unsigned long arg)
2116 		ret = userfaultfd_api(ctx, arg);
2119 		ret = userfaultfd_register(ctx, arg);
2122 		ret = userfaultfd_unregister(ctx, arg);
2125 		ret = userfaultfd_wake(ctx, arg);
2128 		ret = userfaultfd_copy(ctx, arg);
2131 		ret = userfaultfd_zeropage(ctx, arg);
2134 		ret = userfaultfd_move(ctx, arg);
2137 		ret = userfaultfd_writeprotect(ctx, arg);
2140 		ret = userfaultfd_continue(ctx, arg);
2143 		ret = userfaultfd_poison(ctx, arg);