1 files changed, 60 insertions, 0 deletions
diff --git a/include/linux/restart_block.h b/include/linux/restart_block.h
new file mode 100644
index 000000000..5d83d0c1d
--- /dev/null
+++ b/include/linux/restart_block.h
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common syscall restarting data
+ */
+#ifndef __LINUX_RESTART_BLOCK_H
+#define __LINUX_RESTART_BLOCK_H
+
+#include <linux/compiler.h>
+#include <linux/types.h>
+#include <linux/time64.h>
+
+struct timespec;
+struct compat_timespec;
+struct pollfd;
+
+enum timespec_type {
+	TT_NONE		= 0,
+	TT_NATIVE	= 1,
+	TT_COMPAT	= 2,
+};
+
+/*
+ * System call restart block.
+ */
+struct restart_block {
+	long (*fn)(struct restart_block *);
+	union {
+		/* For futex_wait and futex_wait_requeue_pi */
+		struct {
+			u32 __user *uaddr;
+			u32 val;
+			u32 flags;
+			u32 bitset;
+			u64 time;
+			u32 __user *uaddr2;
+		} futex;
+		/* For nanosleep */
+		struct {
+			clockid_t clockid;
+			enum timespec_type type;
+			union {
+				struct __kernel_timespec __user *rmtp;
+				struct compat_timespec __user *compat_rmtp;
+			};
+			u64 expires;
+		} nanosleep;
+		/* For poll */
+		struct {
+			struct pollfd __user *ufds;
+			int nfds;
+			int has_timeout;
+			unsigned long tv_sec;
+			unsigned long tv_nsec;
+		} poll;
+	};
+};
+
+extern long do_no_restart_syscall(struct restart_block *parm);
+
+#endif /* __LINUX_RESTART_BLOCK_H */