diff mbox series

[140/622] lustre: class: use INIT_LIST_HEAD_RCU instead INIT_LIST_HEAD

Message ID 1582838290-17243-141-git-send-email-jsimmons@infradead.org (mailing list archive)
State New, archived
Headers show
Series lustre: sync closely to 2.13.52 | expand

Commit Message

James Simmons Feb. 27, 2020, 9:10 p.m. UTC 
From: Yang Sheng <ys@whamcloud.com>

Use INIT_LIST_HEAD_RCU to avoid compiler optimization too much
in some case.

WC-bug-id: https://jira.whamcloud.com/browse/LU-11453
Lustre-commit: 68bc3984975b ("LU-11453 class: use INIT_LIST_HEAD_RCU instead INIT_LIST_HEAD")
Signed-off-by: Yang Sheng <ys@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/33317
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: John L. Hammond <jhammond@whamcloud.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
 fs/lustre/obdclass/genops.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/fs/lustre/obdclass/genops.c b/fs/lustre/obdclass/genops.c
index da53572..4465dd9 100644
--- a/fs/lustre/obdclass/genops.c
+++ b/fs/lustre/obdclass/genops.c
@@ -821,7 +821,7 @@  static struct obd_export *__class_new_export(struct obd_device *obd,
 	spin_lock_init(&export->exp_uncommitted_replies_lock);
 	INIT_LIST_HEAD(&export->exp_uncommitted_replies);
 	INIT_LIST_HEAD(&export->exp_req_replay_queue);
-	INIT_LIST_HEAD(&export->exp_handle.h_link);
+	INIT_LIST_HEAD_RCU(&export->exp_handle.h_link);
 	INIT_LIST_HEAD(&export->exp_hp_rpcs);
 	class_handle_hash(&export->exp_handle, &export_handle_ops);
 	spin_lock_init(&export->exp_lock);
@@ -1018,7 +1018,7 @@  struct obd_import *class_new_import(struct obd_device *obd)
 	atomic_set(&imp->imp_replay_inflight, 0);
 	atomic_set(&imp->imp_inval_count, 0);
 	INIT_LIST_HEAD(&imp->imp_conn_list);
-	INIT_LIST_HEAD(&imp->imp_handle.h_link);
+	INIT_LIST_HEAD_RCU(&imp->imp_handle.h_link);
 	class_handle_hash(&imp->imp_handle, &import_handle_ops);
 	init_imp_at(&imp->imp_at);