[tip: core/rcu] srcu: Unconditionally embed struct lockdep_map

[tip-bot2 for Frederic Weisbecker]

The following commit has been merged into the core/rcu branch of tip:

Commit-ID:     7bf0a6141ab9c1d113bd85d6d13d43903a4278ba
Gitweb:        https://git.kernel.org/tip/7bf0a6141ab9c1d113bd85d6d13d43903a4278ba
Author:        Frederic Weisbecker <frederic@xxxxxxxxxx>
AuthorDate:    Fri, 09 Apr 2021 00:38:58 +02:00
Committer:     Paul E. McKenney <paulmck@xxxxxxxxxx>
CommitterDate: Mon, 10 May 2021 16:03:35 -07:00

srcu: Unconditionally embed struct lockdep_map

Since struct lockdep_map has zero size when CONFIG_DEBUG_LOCK_ALLOC=n,
this commit removes the #ifdef from the srcu_struct structure's ->dep_map.
This change will simplify further manipulations of this field.

Signed-off-by: Frederic Weisbecker <frederic@xxxxxxxxxx>
Cc: Uladzislau Rezki <urezki@xxxxxxxxx>
Cc: Boqun Feng <boqun.feng@xxxxxxxxx>
Cc: Lai Jiangshan <jiangshanlai@xxxxxxxxx>
Cc: Neeraj Upadhyay <neeraju@xxxxxxxxxxxxxx>
Cc: Josh Triplett <josh@xxxxxxxxxxxxxxxx>
Cc: Joel Fernandes <joel@xxxxxxxxxxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
---
 include/linux/srcutree.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/include/linux/srcutree.h b/include/linux/srcutree.h
index 9cfcc8a..cb1f435 100644
--- a/include/linux/srcutree.h
+++ b/include/linux/srcutree.h
@@ -82,9 +82,7 @@ struct srcu_struct {
 						/*  callback for the barrier */
 						/*  operation. */
 	struct delayed_work work;
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
 	struct lockdep_map dep_map;
-#endif /* #ifdef CONFIG_DEBUG_LOCK_ALLOC */
 };
 
 /* Values for state variable (bottom bits of ->srcu_gp_seq). */