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From: Jakub Kicinski <kuba@kernel.org>
To: davem@davemloft.net
Cc: netdev@vger.kernel.org, edumazet@google.com, pabeni@redhat.com,
	jacob.e.keller@intel.com, jiri@resnulli.us,
	Jakub Kicinski <kuba@kernel.org>, Jiri Pirko <jiri@nvidia.com>
Subject: [PATCH net-next 2/9] devlink: update the code in netns move to latest helpers
Date: Thu,  5 Jan 2023 22:33:55 -0800	[thread overview]
Message-ID: <20230106063402.485336-3-kuba@kernel.org> (raw)
In-Reply-To: <20230106063402.485336-1-kuba@kernel.org>

devlink_pernet_pre_exit() is the only obvious place which takes
the instance lock without using the devl_ helpers. Update the code
and move the error print after releasing the reference
(having unlock and put together feels slightly idiomatic).

Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
 net/devlink/core.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/net/devlink/core.c b/net/devlink/core.c
index 88c88b8053e2..d3b8336946fd 100644
--- a/net/devlink/core.c
+++ b/net/devlink/core.c
@@ -299,15 +299,16 @@ static void __net_exit devlink_pernet_pre_exit(struct net *net)
 	 */
 	devlinks_xa_for_each_registered_get(net, index, devlink) {
 		WARN_ON(!(devlink->features & DEVLINK_F_RELOAD));
-		mutex_lock(&devlink->lock);
+		devl_lock(devlink);
 		err = devlink_reload(devlink, &init_net,
 				     DEVLINK_RELOAD_ACTION_DRIVER_REINIT,
 				     DEVLINK_RELOAD_LIMIT_UNSPEC,
 				     &actions_performed, NULL);
-		mutex_unlock(&devlink->lock);
+		devl_unlock(devlink);
+		devlink_put(devlink);
+
 		if (err && err != -EOPNOTSUPP)
 			pr_warn("Failed to reload devlink instance into init_net\n");
-		devlink_put(devlink);
 	}
 }
 
-- 
2.38.1


  parent reply	other threads:[~2023-01-06  6:34 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-06  6:33 [PATCH net-next 0/9] devlink: remove the wait-for-references on unregister Jakub Kicinski
2023-01-06  6:33 ` [PATCH net-next 1/9] devlink: bump the instance index directly when iterating Jakub Kicinski
2023-01-06 12:17   ` Jiri Pirko
2023-01-06  6:33 ` Jakub Kicinski [this message]
2023-01-06  6:33 ` [PATCH net-next 3/9] devlink: protect devlink->dev by the instance lock Jakub Kicinski
2023-01-06 12:18   ` Jiri Pirko
2023-01-06  6:33 ` [PATCH net-next 4/9] devlink: always check if the devlink instance is registered Jakub Kicinski
2023-01-06 12:41   ` Jiri Pirko
2023-01-06 17:03   ` Jacob Keller
2023-01-06 21:19     ` Jakub Kicinski
2023-01-07  9:05       ` Jiri Pirko
2023-01-06  6:33 ` [PATCH net-next 5/9] devlink: remove the registration guarantee of references Jakub Kicinski
2023-01-06 12:42   ` Jiri Pirko
2023-01-06  6:33 ` [PATCH net-next 6/9] devlink: don't require setting features before registration Jakub Kicinski
2023-01-06 12:43   ` Jiri Pirko
2023-01-06  6:34 ` [PATCH net-next 7/9] devlink: allow registering parameters after the instance Jakub Kicinski
2023-01-06 12:55   ` Jiri Pirko
2023-01-06 21:22     ` Jakub Kicinski
2023-01-07  9:20       ` Jiri Pirko
2023-01-10  0:21       ` Jacob Keller
2023-01-10 16:35         ` Jiri Pirko
2023-01-10 20:22           ` Jakub Kicinski
2023-01-11  9:32             ` Jiri Pirko
2023-01-11 16:45               ` Jakub Kicinski
2023-01-11 21:29                 ` Jacob Keller
2023-01-12  7:07                   ` Leon Romanovsky
2023-01-12 14:59                     ` Jiri Pirko
2023-01-12 19:58                       ` Leon Romanovsky
2023-01-13  7:50                         ` Jiri Pirko
2023-01-15  8:35                           ` Leon Romanovsky
2023-01-16 10:33                             ` Jiri Pirko
2023-01-16 11:25                               ` Leon Romanovsky
2023-01-12 19:20                     ` Jakub Kicinski
2023-01-12 20:09                       ` Leon Romanovsky
2023-01-12 22:44                         ` Jacob Keller
2023-01-13  6:45                           ` Leon Romanovsky
2023-01-13  7:53                             ` Jiri Pirko
2023-01-11 13:21   ` Jiri Pirko
2023-01-06  6:34 ` [PATCH net-next 8/9] netdevsim: rename a label Jakub Kicinski
2023-01-06 12:56   ` Jiri Pirko
2023-01-06  6:34 ` [PATCH net-next 9/9] netdevsim: move devlink registration under the instance lock Jakub Kicinski
2023-01-06 15:49   ` Jiri Pirko
2023-01-06 13:10 ` [PATCH net-next 0/9] devlink: remove the wait-for-references on unregister patchwork-bot+netdevbpf
2023-01-06 15:49 ` Jiri Pirko
2023-01-06 17:06 ` Jacob Keller

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