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-rw-r--r--include/linux/rseq.h9
-rw-r--r--include/uapi/linux/prctl.h10
2 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/rseq.h b/include/linux/rseq.h
index 2266f4dc77b6..3c194a02ad0a 100644
--- a/include/linux/rseq.h
+++ b/include/linux/rseq.h
@@ -163,4 +163,13 @@ void rseq_syscall(struct pt_regs *regs);
static inline void rseq_syscall(struct pt_regs *regs) { }
#endif /* !CONFIG_DEBUG_RSEQ */
+#ifdef CONFIG_RSEQ_SLICE_EXTENSION
+int rseq_slice_extension_prctl(unsigned long arg2, unsigned long arg3);
+#else /* CONFIG_RSEQ_SLICE_EXTENSION */
+static inline int rseq_slice_extension_prctl(unsigned long arg2, unsigned long arg3)
+{
+ return -ENOTSUPP;
+}
+#endif /* !CONFIG_RSEQ_SLICE_EXTENSION */
+
#endif /* _LINUX_RSEQ_H */
diff --git a/include/uapi/linux/prctl.h b/include/uapi/linux/prctl.h
index 51c4e8c82b1e..79944b7ae50a 100644
--- a/include/uapi/linux/prctl.h
+++ b/include/uapi/linux/prctl.h
@@ -386,4 +386,14 @@ struct prctl_mm_map {
# define PR_FUTEX_HASH_SET_SLOTS 1
# define PR_FUTEX_HASH_GET_SLOTS 2
+/* RSEQ time slice extensions */
+#define PR_RSEQ_SLICE_EXTENSION 79
+# define PR_RSEQ_SLICE_EXTENSION_GET 1
+# define PR_RSEQ_SLICE_EXTENSION_SET 2
+/*
+ * Bits for RSEQ_SLICE_EXTENSION_GET/SET
+ * PR_RSEQ_SLICE_EXT_ENABLE: Enable
+ */
+# define PR_RSEQ_SLICE_EXT_ENABLE 0x01
+
#endif /* _LINUX_PRCTL_H */