Restartable sequences: self-tests

[deliverable/linux.git] / init / Kconfig

diff --git a/init/Kconfig b/init/Kconfig
index c02d89777713b8772e47c2759570f4a838cb18e7..545b7eda1b33abc601dbaa6b21995ac4dd4aef8c 100644 (file)
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1653,6 +1653,19 @@ 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