percpu: add test module for various percpu operations

Tests various percpu operations.

Enable with CONFIG_PERCPU_TEST=m.

Signed-off-by: Greg Thelen <gthelen@google.com>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index ebef88f61b7d..db25707aa41b 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1481,6 +1481,15 @@ config INTERVAL_TREE_TEST
         help
           A benchmark measuring the performance of the interval tree library
 
+config PERCPU_TEST
+        tristate "Per cpu operations test"
+        depends on m && DEBUG_KERNEL
+        help
+          Enable this option to build test module which validates per-cpu
+          operations.
+
+          If unsure, say N.
+
 config ATOMIC64_SELFTEST
         bool "Perform an atomic64_t self-test at boot"
         help