All of lore.kernel.org
 help / color / mirror / Atom feed
From: Eric Dumazet <eric.dumazet@gmail.com>
To: "David S . Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>
Cc: netdev <netdev@vger.kernel.org>,
	Eric Dumazet <edumazet@google.com>,
	Eric Dumazet <eric.dumazet@gmail.com>,
	Dmitry Vyukov <dvyukov@google.com>
Subject: [PATCH v3 net-next 23/23] netpoll: add net device refcount tracker to struct netpoll
Date: Sat,  4 Dec 2021 20:22:17 -0800	[thread overview]
Message-ID: <20211205042217.982127-24-eric.dumazet@gmail.com> (raw)
In-Reply-To: <20211205042217.982127-1-eric.dumazet@gmail.com>

From: Eric Dumazet <edumazet@google.com>

Signed-off-by: Eric Dumazet <edumazet@google.com>
---
 drivers/net/netconsole.c | 2 +-
 include/linux/netpoll.h  | 1 +
 net/core/netpoll.c       | 4 ++--
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
index ccecba908ded61370f8fc408ea53aa1ff305aca3..ab8cd555102083c2f0179898681489b987afe5b0 100644
--- a/drivers/net/netconsole.c
+++ b/drivers/net/netconsole.c
@@ -721,7 +721,7 @@ static int netconsole_netdev_event(struct notifier_block *this,
 				__netpoll_cleanup(&nt->np);
 
 				spin_lock_irqsave(&target_list_lock, flags);
-				dev_put(nt->np.dev);
+				dev_put_track(nt->np.dev, &nt->np.dev_tracker);
 				nt->np.dev = NULL;
 				nt->enabled = false;
 				stopped = true;
diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h
index e6a2d72e0dc7a6929d32a2e994f24719e073121e..bd19c4b91e31204e85d30884720b761116d5c036 100644
--- a/include/linux/netpoll.h
+++ b/include/linux/netpoll.h
@@ -24,6 +24,7 @@ union inet_addr {
 
 struct netpoll {
 	struct net_device *dev;
+	netdevice_tracker dev_tracker;
 	char dev_name[IFNAMSIZ];
 	const char *name;
 
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index edfc0f8011f88a7d46d69e94c6343489369fa78c..db724463e7cd5089d85d8f75a77ad83bbece82dc 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -776,7 +776,7 @@ int netpoll_setup(struct netpoll *np)
 	err = __netpoll_setup(np, ndev);
 	if (err)
 		goto put;
-
+	netdev_tracker_alloc(ndev, &np->dev_tracker, GFP_KERNEL);
 	rtnl_unlock();
 	return 0;
 
@@ -853,7 +853,7 @@ void netpoll_cleanup(struct netpoll *np)
 	if (!np->dev)
 		goto out;
 	__netpoll_cleanup(np);
-	dev_put(np->dev);
+	dev_put_track(np->dev, &np->dev_tracker);
 	np->dev = NULL;
 out:
 	rtnl_unlock();
-- 
2.34.1.400.ga245620fadb-goog


  parent reply	other threads:[~2021-12-05  4:24 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-05  4:21 [PATCH v3 net-next 00/23] net: add preliminary netdev refcount tracking Eric Dumazet
2021-12-05  4:21 ` [PATCH v3 net-next 01/23] lib: add reference counting tracking infrastructure Eric Dumazet
2021-12-08 14:09   ` Andrzej Hajda
2021-12-08 14:27     ` Dmitry Vyukov
2021-12-08 15:04       ` Andrzej Hajda
2021-12-08 14:59     ` Jakub Kicinski
2021-12-08 15:11       ` Andrzej Hajda
2021-12-15 10:18   ` Jiri Slaby
2021-12-15 10:38     ` Eric Dumazet
2021-12-15 10:41       ` Eric Dumazet
2021-12-15 10:57         ` Vlastimil Babka
2021-12-15 11:08           ` Eric Dumazet
2021-12-15 11:09             ` Jiri Slaby
2021-12-15 11:25               ` Eric Dumazet
2021-12-05  4:21 ` [PATCH v3 net-next 02/23] lib: add tests for reference tracker Eric Dumazet
2021-12-05  4:21 ` [PATCH v3 net-next 03/23] net: add net device refcount tracker infrastructure Eric Dumazet
2021-12-05  4:21 ` [PATCH v3 net-next 04/23] net: add net device refcount tracker to struct netdev_rx_queue Eric Dumazet
2021-12-05  4:21 ` [PATCH v3 net-next 05/23] net: add net device refcount tracker to struct netdev_queue Eric Dumazet
2021-12-05  4:22 ` [PATCH v3 net-next 06/23] net: add net device refcount tracker to ethtool_phys_id() Eric Dumazet
2021-12-05  4:22 ` [PATCH v3 net-next 07/23] net: add net device refcount tracker to dev_ifsioc() Eric Dumazet
2021-12-05  4:22 ` [PATCH v3 net-next 08/23] drop_monitor: add net device refcount tracker Eric Dumazet
2021-12-05  4:22 ` [PATCH v3 net-next 09/23] net: dst: add net device refcount tracking to dst_entry Eric Dumazet
2021-12-05  4:22 ` [PATCH v3 net-next 10/23] ipv6: add net device refcount tracker to rt6_probe_deferred() Eric Dumazet
2021-12-05  4:22 ` [PATCH v3 net-next 11/23] sit: add net device refcount tracking to ip_tunnel Eric Dumazet
2021-12-05  4:22 ` [PATCH v3 net-next 12/23] ipv6: add net device refcount tracker to struct ip6_tnl Eric Dumazet
2021-12-05  4:22 ` [PATCH v3 net-next 13/23] net: add net device refcount tracker to struct neighbour Eric Dumazet
2021-12-05  4:22 ` [PATCH v3 net-next 14/23] net: add net device refcount tracker to struct pneigh_entry Eric Dumazet
2021-12-05  4:22 ` [PATCH v3 net-next 15/23] net: add net device refcount tracker to struct neigh_parms Eric Dumazet
2021-12-05  4:22 ` [PATCH v3 net-next 16/23] net: add net device refcount tracker to struct netdev_adjacent Eric Dumazet
2021-12-05  4:22 ` [PATCH v3 net-next 17/23] ipv6: add net device refcount tracker to struct inet6_dev Eric Dumazet
2021-12-05  4:22 ` [PATCH v3 net-next 18/23] ipv4: add net device refcount tracker to struct in_device Eric Dumazet
2021-12-05  4:22 ` [PATCH v3 net-next 19/23] net/sched: add net device refcount tracker to struct Qdisc Eric Dumazet
2021-12-05  4:22 ` [PATCH v3 net-next 20/23] net: linkwatch: add net device refcount tracker Eric Dumazet
2021-12-05  4:22 ` [PATCH v3 net-next 21/23] net: failover: " Eric Dumazet
2021-12-05  4:22 ` [PATCH v3 net-next 22/23] ipmr, ip6mr: add net device refcount tracker to struct vif_device Eric Dumazet
2021-12-05  4:22 ` Eric Dumazet [this message]
2021-12-06 23:23 ` [PATCH v3 net-next 00/23] net: add preliminary netdev refcount tracking Andrew Lunn
2021-12-06 23:44   ` Eric Dumazet
2021-12-06 23:48     ` Eric Dumazet
2021-12-07  0:00     ` Andrew Lunn
2021-12-07  0:04       ` Eric Dumazet
2021-12-07  0:12         ` Andrew Lunn
2021-12-07  0:17           ` Eric Dumazet
2021-12-07  0:21             ` Eric Dumazet
2021-12-07  0:27             ` Andrew Lunn
2021-12-07  0:53               ` Eric Dumazet
2021-12-07 19:52                 ` Andrew Lunn
2021-12-07 20:00                   ` Eric Dumazet
2021-12-08 17:29                     ` Andrew Lunn
2021-12-08 18:21                       ` Eric Dumazet
2021-12-08 18:53                         ` Eric Dumazet
2021-12-07  0:26 ` Jakub Kicinski

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20211205042217.982127-24-eric.dumazet@gmail.com \
    --to=eric.dumazet@gmail.com \
    --cc=davem@davemloft.net \
    --cc=dvyukov@google.com \
    --cc=edumazet@google.com \
    --cc=kuba@kernel.org \
    --cc=netdev@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.