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| author | Michal Kubeček <mkubecek@suse.cz> | 2016-03-08 14:44:25 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-03-08 15:16:50 -0500 |
| commit | 3570df914f9cae15df7f6ba472a51eaf798fdb46 (patch) | |
| tree | e08b44c0e8312a5657e211bcb1c157d116132ee0 /net/ipv6/ip6_fib.c | |
| parent | 02daec7c2274c03ac84f1cbe41204ad8f8e3ca6c (diff) | |
| download | linux-3570df914f9cae15df7f6ba472a51eaf798fdb46.tar.gz linux-3570df914f9cae15df7f6ba472a51eaf798fdb46.tar.bz2 linux-3570df914f9cae15df7f6ba472a51eaf798fdb46.zip | |
ipv6: replace global gc_args with local variable
Global variable gc_args is only used in fib6_run_gc() and functions
called from it. As fib6_run_gc() makes sure there is at most one
instance of fib6_clean_all() running at any moment, we can replace
gc_args with a local variable which will be needed once multiple
instances (per netns) of garbage collector are allowed.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/ip6_fib.c')
| -rw-r--r-- | net/ipv6/ip6_fib.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index 0c7e276c230e..d7c715accac9 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -1725,14 +1725,15 @@ static void fib6_flush_trees(struct net *net) * Garbage collection */ -static struct fib6_gc_args +struct fib6_gc_args { int timeout; int more; -} gc_args; +}; static int fib6_age(struct rt6_info *rt, void *arg) { + struct fib6_gc_args *gc_args = arg; unsigned long now = jiffies; /* @@ -1748,10 +1749,10 @@ static int fib6_age(struct rt6_info *rt, void *arg) RT6_TRACE("expiring %p\n", rt); return -1; } - gc_args.more++; + gc_args->more++; } else if (rt->rt6i_flags & RTF_CACHE) { if (atomic_read(&rt->dst.__refcnt) == 0 && - time_after_eq(now, rt->dst.lastuse + gc_args.timeout)) { + time_after_eq(now, rt->dst.lastuse + gc_args->timeout)) { RT6_TRACE("aging clone %p\n", rt); return -1; } else if (rt->rt6i_flags & RTF_GATEWAY) { @@ -1769,7 +1770,7 @@ static int fib6_age(struct rt6_info *rt, void *arg) return -1; } } - gc_args.more++; + gc_args->more++; } return 0; @@ -1779,6 +1780,7 @@ static DEFINE_SPINLOCK(fib6_gc_lock); void fib6_run_gc(unsigned long expires, struct net *net, bool force) { + struct fib6_gc_args gc_args; unsigned long now; if (force) { @@ -1792,7 +1794,7 @@ void fib6_run_gc(unsigned long expires, struct net *net, bool force) gc_args.more = icmp6_dst_gc(); - fib6_clean_all(net, fib6_age, NULL); + fib6_clean_all(net, fib6_age, &gc_args); now = jiffies; net->ipv6.ip6_rt_last_gc = now; |