From: "Paul E. McKenney" <paulmck@linux.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: mingo@kernel.org, jiangshanlai@gmail.com, dipankar@in.ibm.com,
akpm@linux-foundation.org, mathieu.desnoyers@efficios.com,
josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org,
rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com,
fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org,
"Paul E. McKenney" <paulmck@linux.ibm.com>,
"David S. Miller" <davem@davemloft.net>,
netdev@vger.kernel.org
Subject: [PATCH tip/core/rcu 32/41] net/core: Replace call_rcu_bh() and synchronize_rcu_bh()
Date: Sun, 11 Nov 2018 11:44:01 -0800 [thread overview]
Message-ID: <20181111194410.6368-32-paulmck@linux.ibm.com> (raw)
In-Reply-To: <20181111194104.GA4787@linux.ibm.com>
Now that call_rcu()'s callback is not invoked until after all bh-disable
regions of code have completed (in addition to explicitly marked
RCU read-side critical sections), call_rcu() can be used in place of
call_rcu_bh(). Similarly, synchronize_rcu() can be used in place of
synchronize_rcu_bh(). This commit therefore makes these changes.
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: <netdev@vger.kernel.org>
---
net/core/netpoll.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 5da9552b186b..677d3f332172 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -800,7 +800,7 @@ void __netpoll_cleanup(struct netpoll *np)
ops->ndo_netpoll_cleanup(np->dev);
RCU_INIT_POINTER(np->dev->npinfo, NULL);
- call_rcu_bh(&npinfo->rcu, rcu_cleanup_netpoll_info);
+ call_rcu(&npinfo->rcu, rcu_cleanup_netpoll_info);
} else
RCU_INIT_POINTER(np->dev->npinfo, NULL);
}
@@ -811,7 +811,7 @@ void __netpoll_free(struct netpoll *np)
ASSERT_RTNL();
/* Wait for transmitting packets to finish before freeing. */
- synchronize_rcu_bh();
+ synchronize_rcu();
__netpoll_cleanup(np);
kfree(np);
}
--
2.17.1
next prev parent reply other threads:[~2018-11-11 19:45 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-11 19:41 [PATCH tip/core/rcu 0/41] More RCU flavor consolidation cleanup for v4.21/v5.0 Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 01/41] rcu: Remove unused rcu_state externs Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 02/41] rcu: Fix rcu_{node,data} comments about gp_seq_needed Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 03/41] rcu: Eliminate synchronize_rcu_mult() Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 04/41] rcu: Consolidate the RCU update functions invoked by sync.c Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 05/41] sched/membarrier: Replace synchronize_sched() with synchronize_rcu() Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 06/41] sparc/oprofile: Convert timer_stop() to use synchronize_rcu() Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 07/41] s390/mm: Convert tlb_table_flush() to use call_rcu() Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 08/41] powerpc: Convert hugepd_free() " Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 09/41] crypto/pcrypt: Replace synchronize_rcu_bh() with synchronize_rcu() Paul E. McKenney
2018-11-16 5:56 ` Herbert Xu
2018-11-27 17:19 ` Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 10/41] drivers/ipmi: Replace synchronize_sched() " Paul E. McKenney
2018-11-12 15:38 ` Corey Minyard
2018-11-12 16:04 ` Paul E. McKenney
2018-11-12 16:15 ` Corey Minyard
2018-11-12 16:28 ` Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 11/41] ethernet/sis: " Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 12/41] ethernet/realtek: " Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 13/41] ethernet/intel/ixgbe: " Paul E. McKenney
2018-11-13 16:54 ` [Intel-wired-lan] " Bowers, AndrewX
2018-11-11 19:43 ` [PATCH tip/core/rcu 14/41] drivers/vhost: Replace synchronize_rcu_bh() " Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 15/41] cpufreq/intel_pstate: Replace synchronize_sched() " Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 16/41] cpufreq/cpufreq_governor: " Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 17/41] fs/file: " Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 18/41] tracing: Replace synchronize_sched() and call_rcu_sched() Paul E. McKenney
2018-11-12 2:09 ` Steven Rostedt
2018-11-11 19:43 ` [PATCH tip/core/rcu 19/41] main: Replace rcu_barrier_sched() with rcu_barrier() Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 20/41] kprobes: eplace synchronize_sched() with synchronize_rcu() Paul E. McKenney
2018-11-12 3:00 ` Masami Hiramatsu
2018-11-12 3:19 ` Paul E. McKenney
2018-11-13 18:08 ` Masami Hiramatsu
2018-11-13 19:22 ` Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 21/41] lockdep: Replace " Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 22/41] sched/membarrier: " Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 23/41] sched: Replace " Paul E. McKenney
2018-11-12 0:12 ` Peter Zijlstra
2018-11-12 0:45 ` Paul E. McKenney
2018-11-12 0:53 ` Peter Zijlstra
2018-11-12 1:47 ` Paul E. McKenney
2018-11-12 2:07 ` Peter Zijlstra
2018-11-12 2:24 ` Paul E. McKenney
2018-11-12 9:00 ` Peter Zijlstra
2018-11-12 13:28 ` Paul E. McKenney
2018-11-12 18:17 ` Peter Zijlstra
2018-11-12 20:20 ` Steven Rostedt
2018-11-12 22:21 ` Paul E. McKenney
2018-11-26 19:59 ` Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 24/41] modules: Replace synchronize_sched() and call_rcu_sched() Paul E. McKenney
2018-11-12 12:48 ` Jessica Yu
2018-11-12 16:31 ` Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 25/41] workqueue: Replace call_rcu_sched() with call_rcu() Paul E. McKenney
2018-11-13 15:48 ` Tejun Heo
2018-11-13 19:21 ` Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 26/41] events: Replace synchronize_sched() with synchronize_rcu() Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 27/41] percpu-refcount: Replace call_rcu_sched() with call_rcu() Paul E. McKenney
2018-11-13 15:48 ` Tejun Heo
2018-11-11 19:43 ` [PATCH tip/core/rcu 28/41] slab: Replace synchronize_sched() with synchronize_rcu() Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 29/41] mm: Replace call_rcu_sched() with call_rcu() Paul E. McKenney
2018-11-11 19:43 ` [PATCH tip/core/rcu 30/41] netfilter: Replace call_rcu_bh(), rcu_barrier_bh(), and synchronize_rcu_bh() Paul E. McKenney
2018-12-01 11:35 ` Pablo Neira Ayuso
2018-11-11 19:44 ` [PATCH tip/core/rcu 31/41] net/sched: Replace call_rcu_bh() and rcu_barrier_bh() Paul E. McKenney
2018-11-11 19:44 ` Paul E. McKenney [this message]
2018-11-11 19:44 ` [PATCH tip/core/rcu 33/41] net/bridge: " Paul E. McKenney
2018-11-13 0:29 ` Nikolay Aleksandrov
2018-11-11 19:44 ` [PATCH tip/core/rcu 34/41] percpu-rwsem: Replace synchronize_sched() with synchronize_rcu() Paul E. McKenney
2018-11-13 15:49 ` Tejun Heo
2018-11-11 19:44 ` [PATCH tip/core/rcu 35/41] types: Remove call_rcu_bh() and call_rcu_sched() Paul E. McKenney
2018-11-11 19:44 ` [PATCH tip/core/rcu 36/41] cgroups: Replace synchronize_sched() with synchronize_rcu() Paul E. McKenney
2018-11-13 15:50 ` Tejun Heo
2018-11-11 19:44 ` [PATCH tip/core/rcu 37/41] livepatch: " Paul E. McKenney
2018-11-11 19:44 ` [PATCH tip/core/rcu 38/41] net/core/skmsg: Replace call_rcu_sched() with call_rcu() Paul E. McKenney
2018-11-11 19:44 ` [PATCH tip/core/rcu 39/41] net/decnet: Replace rcu_barrier_bh() with rcu_barrier() Paul E. McKenney
2018-11-11 19:44 ` [PATCH tip/core/rcu 40/41] tools/kernel.h: Replace synchronize_sched() with synchronize_rcu() Paul E. McKenney
2018-11-11 19:44 ` [PATCH tip/core/rcu 41/41] rcutorture/formal: " Paul E. McKenney
2018-11-12 14:07 ` [PATCH tip/core/rcu 0/41] More RCU flavor consolidation cleanup for v4.21/v5.0 Mathieu Desnoyers
2018-11-12 16:01 ` Paul E. McKenney
2018-11-12 21:40 ` Sasha Levin
2018-11-12 22:16 ` Paul E. McKenney
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