Restartable sequences system call (v8)

[deliverable/linux.git] / init / Kconfig

diff --git a/init/Kconfig b/init/Kconfig
index cac3f096050d5b27a9bd5de8600469f3c5aa0ada..8da994a25c8911a21812e22020ffd73e44e51e5b 100644 (file)
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1656,6 +1656,19 @@ config MEMBARRIER
 
          If unsure, say Y.
 
+config RSEQ
+       bool "Enable rseq() system call" if EXPERT
+       default y
+       depends on HAVE_RSEQ
+       help
+         Enable the restartable sequences system call. It provides a
+         user-space cache for the current CPU number value, which
+         speeds up getting the current CPU number from user-space,
+         as well as an ABI to speed up user-space operations on
+         per-CPU data.
+
+         If unsure, say Y.
+
 config EMBEDDED
        bool "Embedded system"
        option allnoconfig_y