From: David Ahern <dsahern@gmail•com>
To: netdev@vger•kernel.org
Cc: davem@davemloft•net, idosch@idosch•org,
roopa@cumulusnetworks•com, eric.dumazet@gmail•com,
weiwan@google•com, kafai@fb•com, yoshfuji@linux-ipv6•org,
David Ahern <dsahern@gmail•com>
Subject: [PATCH net-next 5/7] net/ipv6: Move release of fib6_info from pcpu routes to helper
Date: Fri, 20 Apr 2018 15:38:01 -0700 [thread overview]
Message-ID: <20180420223803.15743-6-dsahern@gmail.com> (raw)
In-Reply-To: <20180420223803.15743-1-dsahern@gmail.com>
Code move only; no functional change intended.
Signed-off-by: David Ahern <dsahern@gmail•com>
---
net/ipv6/ip6_fib.c | 41 +++++++++++++++++++++++------------------
1 file changed, 23 insertions(+), 18 deletions(-)
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index f936e91a8c65..64ca02b7745f 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -860,6 +860,27 @@ static struct fib6_node *fib6_add_1(struct net *net,
return ln;
}
+static void fib6_drop_pcpu_from(struct fib6_info *f6i,
+ const struct fib6_table *table)
+{
+ int cpu;
+
+ /* release the reference to this fib entry from
+ * all of its cached pcpu routes
+ */
+ for_each_possible_cpu(cpu) {
+ struct rt6_info **ppcpu_rt;
+ struct rt6_info *pcpu_rt;
+
+ ppcpu_rt = per_cpu_ptr(f6i->rt6i_pcpu, cpu);
+ pcpu_rt = *ppcpu_rt;
+ if (pcpu_rt) {
+ fib6_info_release(pcpu_rt->from);
+ pcpu_rt->from = NULL;
+ }
+ }
+}
+
static void fib6_purge_rt(struct fib6_info *rt, struct fib6_node *fn,
struct net *net)
{
@@ -887,24 +908,8 @@ static void fib6_purge_rt(struct fib6_info *rt, struct fib6_node *fn,
lockdep_is_held(&table->tb6_lock));
}
- if (rt->rt6i_pcpu) {
- int cpu;
-
- /* release the reference to this fib entry from
- * all of its cached pcpu routes
- */
- for_each_possible_cpu(cpu) {
- struct rt6_info **ppcpu_rt;
- struct rt6_info *pcpu_rt;
-
- ppcpu_rt = per_cpu_ptr(rt->rt6i_pcpu, cpu);
- pcpu_rt = *ppcpu_rt;
- if (pcpu_rt) {
- fib6_info_release(pcpu_rt->from);
- pcpu_rt->from = NULL;
- }
- }
- }
+ if (rt->rt6i_pcpu)
+ fib6_drop_pcpu_from(rt, table);
}
}
--
2.11.0
next prev parent reply other threads:[~2018-04-20 22:38 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-20 22:37 [PATCH net-next 0/7] net/ipv6: Another followup to the fib6_info change David Ahern
2018-04-20 22:37 ` [PATCH net-next 1/7] net/ipv6: Clean up rt expires helpers David Ahern
2018-04-20 22:37 ` [PATCH net-next 2/7] net/ipv6: Rename rt6_get_cookie_safe David Ahern
2018-04-20 22:37 ` [PATCH net-next 3/7] net/ipv6: Move rcu_read_lock to callers of ip6_rt_cache_alloc David Ahern
2018-04-20 22:38 ` [PATCH net-next 4/7] net/ipv6: Move rcu locking to callers of fib6_get_cookie_safe David Ahern
2018-04-20 22:38 ` David Ahern [this message]
2018-04-20 22:38 ` [PATCH net-next 6/7] net/ipv6: Make from in rt6_info rcu protected David Ahern
2018-04-20 22:38 ` [PATCH net-next 7/7] net/ipv6: Remove unncessary check on f6i in fib6_check David Ahern
2018-04-21 20:06 ` [PATCH net-next 0/7] net/ipv6: Another followup to the fib6_info change David Miller
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