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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Sebastian Andrzej Siewior , Clark Williams , Steven Rostedt Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rt-devel@lists.linux.dev, kernel-team@meta.com, efault@gmx.de, calvin@wbinvd.org, Breno Leitao X-Mailer: b4 0.15-dev-dd21f X-Developer-Signature: v=1; a=openpgp-sha256; l=2533; i=leitao@debian.org; h=from:subject:message-id; bh=QOwKb2hEwQaGFHvUWM1aHkkgzXtur1DMIlEfQlknmM4=; b=owEBbQKS/ZANAwAIATWjk5/8eHdtAcsmYgBotwD5LX2SXM4Un8klcyCjqO4sv2Lht3xKRNhV5 vbufV5MTXSJAjMEAAEIAB0WIQSshTmm6PRnAspKQ5s1o5Of/Hh3bQUCaLcA+QAKCRA1o5Of/Hh3 bTyGD/9YXblp9JM07zJx/HWzzAhbrtLXUMe4oIu02xOZ18sFDnDIANmRrJWl2rg72H6wIoRxt8Z aUg81x1PhyCTRZ709Mkqe5d5S+ewu1Bi/qie4INs6FSvFuIexD1pNG2FasJ1xmn7kEOUnwVO0kZ VTGrX+HbqwmqRAfDQRDOsX9ecyP5kVVfXQ2Xe7jcA6dddCgaSTIzND3VlTQbpegC/YsFJI4wAhT WAyn3w9Y+e/4CygORus/Q+QZMVrqI+QnQOK+8cWYDkhSisjwynUF/k9Wa7P10kz32uw09dCva6e m0WXbFDId/wE3hTMNcuemwGtJdtTQmrnRdxa9rSnJOC8qqd/gN8HiifT+Gtsx8e675V5bd/yl7W 2L7jGynwnfzQLQ2HIQi2DnauKpUfkW/YuAusTa01zhO/EtpdLgFEomxgTg/mLWihKNJZ97EQTBG FfXovDkqTM6FnUQumAR1Nj/A/8DM1wheKEQLRTGuJF6y0pKB93lZfL8gZ12MxSELb+tMJxSXDNN eWYs1Ab9DlDaOu9uedefYkyk/43CbAThJHlXfFNljNppV5dY38cnsDNYrV9dYz5CaxluTx/HnWR rHWE2mxf2heynoVGnIQb/clg49busTnUx2K2h2GMlj7MJTpsGYNGMLdd88PZhnilv76VIulRjiy jw3Ggs8CR5rb40w== X-Developer-Key: i=leitao@debian.org; a=openpgp; fpr=AC8539A6E8F46702CA4A439B35A3939FFC78776D Transfer the skb_pool_flush() function from netpoll to netconsole, and call it within netpoll_cleanup() to ensure skb pool resources are properly released once the device is down. The invocation of skb_pool_flush() was removed from netpoll_setup(), as the pool is now only managed after successful allocation. This complete the move of skb pool management from netpoll to netconsole. Signed-off-by: Breno Leitao --- drivers/net/netconsole.c | 10 ++++++++++ net/core/netpoll.c | 15 +-------------- 2 files changed, 11 insertions(+), 14 deletions(-) diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c index bf7bab7a9c2f0..b9bfb78560b3c 100644 --- a/drivers/net/netconsole.c +++ b/drivers/net/netconsole.c @@ -300,12 +300,22 @@ static struct netconsole_target *alloc_and_init(void) return nt; } +static void skb_pool_flush(struct netpoll *np) +{ + struct sk_buff_head *skb_pool; + + cancel_work_sync(&np->refill_wq); + skb_pool = &np->skb_pool; + skb_queue_purge_reason(skb_pool, SKB_CONSUMED); +} + static void netpoll_cleanup(struct netpoll *np) { rtnl_lock(); if (!np->dev) goto out; do_netpoll_cleanup(np); + skb_pool_flush(np); out: rtnl_unlock(); } diff --git a/net/core/netpoll.c b/net/core/netpoll.c index 5aa83c9c09e05..c0eeeb9ac3daf 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -326,15 +326,6 @@ netdev_tx_t netpoll_send_skb(struct netpoll *np, struct sk_buff *skb) } EXPORT_SYMBOL(netpoll_send_skb); -static void skb_pool_flush(struct netpoll *np) -{ - struct sk_buff_head *skb_pool; - - cancel_work_sync(&np->refill_wq); - skb_pool = &np->skb_pool; - skb_queue_purge_reason(skb_pool, SKB_CONSUMED); -} - int __netpoll_setup(struct netpoll *np, struct net_device *ndev) { struct netpoll_info *npinfo; @@ -547,7 +538,7 @@ int netpoll_setup(struct netpoll *np) err = __netpoll_setup(np, ndev); if (err) - goto flush; + goto put; rtnl_unlock(); /* Make sure all NAPI polls which started before dev->npinfo @@ -558,8 +549,6 @@ int netpoll_setup(struct netpoll *np) return 0; -flush: - skb_pool_flush(np); put: DEBUG_NET_WARN_ON_ONCE(np->dev); if (ip_overwritten) @@ -607,8 +596,6 @@ static void __netpoll_cleanup(struct netpoll *np) call_rcu(&npinfo->rcu, rcu_cleanup_netpoll_info); } else RCU_INIT_POINTER(np->dev->npinfo, NULL); - - skb_pool_flush(np); } void __netpoll_free(struct netpoll *np) -- 2.47.3