summaryrefslogtreecommitdiff
path: root/kernel/rcu
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2020-10-12 21:21:24 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-10-12 21:21:24 +0300
commit20d49bfcc3d234b461ab42c3c64208b8e496c927 (patch)
tree6b48c5c1485fdf0fb05534cac1a744c77d11fa60 /kernel/rcu
parent1e6d1d96461eb350a98c1a0fe9fd93ea14a157e8 (diff)
parent88451f2cd3cec2abc30debdf129422d2699d1eba (diff)
downloadlinux-20d49bfcc3d234b461ab42c3c64208b8e496c927.tar.xz
Merge tag 'core-debugobjects-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull debugobjects updates from Thomas Gleixner: "A small set of updates for debug objects: - Make all debug object descriptors constant. There is no reason to have them writeable. - Free the per CPU object pool after CPU unplug to avoid memory waste" * tag 'core-debugobjects-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: debugobjects: Free per CPU pool after CPU unplug treewide: Make all debug_obj_descriptors const debugobjects: Allow debug_obj_descr to be const
Diffstat (limited to 'kernel/rcu')
-rw-r--r--kernel/rcu/rcu.h2
-rw-r--r--kernel/rcu/update.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h
index cf66a3ccd757..e01cba5e4b52 100644
--- a/kernel/rcu/rcu.h
+++ b/kernel/rcu/rcu.h
@@ -167,7 +167,7 @@ static inline unsigned long rcu_seq_diff(unsigned long new, unsigned long old)
# define STATE_RCU_HEAD_READY 0
# define STATE_RCU_HEAD_QUEUED 1
-extern struct debug_obj_descr rcuhead_debug_descr;
+extern const struct debug_obj_descr rcuhead_debug_descr;
static inline int debug_rcu_head_queue(struct rcu_head *head)
{
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
index 2de49b5d8dd2..3e0f4bcb558f 100644
--- a/kernel/rcu/update.c
+++ b/kernel/rcu/update.c
@@ -469,7 +469,7 @@ void destroy_rcu_head_on_stack(struct rcu_head *head)
}
EXPORT_SYMBOL_GPL(destroy_rcu_head_on_stack);
-struct debug_obj_descr rcuhead_debug_descr = {
+const struct debug_obj_descr rcuhead_debug_descr = {
.name = "rcu_head",
.is_static_object = rcuhead_is_static_object,
};