diff options
Diffstat (limited to 'drivers/block/drbd/drbd_nl.c')
| -rw-r--r-- | drivers/block/drbd/drbd_nl.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 424dcb30ee1c..dbaffcaf8e1b 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -328,8 +328,10 @@ static void conn_md_sync(struct drbd_tconn *tconn) struct drbd_conf *mdev; int vnr; + down_read(&drbd_cfg_rwsem); idr_for_each_entry(&tconn->volumes, mdev, vnr) drbd_md_sync(mdev); + up_read(&drbd_cfg_rwsem); } int conn_khelper(struct drbd_tconn *tconn, char *cmd) @@ -2865,7 +2867,9 @@ int drbd_adm_add_minor(struct sk_buff *skb, struct genl_info *info) goto out; } + down_write(&drbd_cfg_rwsem); retcode = conn_new_minor(adm_ctx.tconn, dh->minor, adm_ctx.volume); + up_write(&drbd_cfg_rwsem); out: drbd_adm_finish(info, retcode); return 0; |