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authorHannes Frederic Sowa <hannes@stressinduktion.org>2013-09-21 16:55:59 +0200
committerDavid S. Miller <davem@davemloft.net>2013-09-27 17:32:16 -0400
commit8d2ca1d7b5c3e63b3a8a81ae99015b615c5f2bf7 (patch)
tree37202066f7715ffc4858c4dd9b5c66c1c8c5cd76 /include/net/ip6_fib.h
parent6229ed1f22592d5ee8360a638cb965fef88b080f (diff)
downloadlinux-8d2ca1d7b5c3e63b3a8a81ae99015b615c5f2bf7.tar.bz2
ipv6: avoid high order memory allocations for /proc/net/ipv6_route
Dumping routes on a system with lots rt6_infos in the fibs causes up to 11-order allocations in seq_file (which fail). While we could switch there to vmalloc we could just implement the streaming interface for /proc/net/ipv6_route. This patch switches /proc/net/ipv6_route from single_open_net to seq_open_net. loff_t *pos tracks dst entries. Also kill never used struct rt6_proc_arg and now unused function fib6_clean_all_ro. Cc: Ben Greear <greearb@candelatech.com> Cc: Patrick McHardy <kaber@trash.net> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/ip6_fib.h')
-rw-r--r--include/net/ip6_fib.h6
1 files changed, 2 insertions, 4 deletions
diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index eab88f0e2088..6738f3409a6f 100644
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -280,10 +280,6 @@ struct fib6_node *fib6_locate(struct fib6_node *root,
const struct in6_addr *daddr, int dst_len,
const struct in6_addr *saddr, int src_len);
-void fib6_clean_all_ro(struct net *net,
- int (*func)(struct rt6_info *, void *arg),
- int prune, void *arg);
-
void fib6_clean_all(struct net *net, int (*func)(struct rt6_info *, void *arg),
int prune, void *arg);
@@ -299,6 +295,8 @@ void fib6_gc_cleanup(void);
int fib6_init(void);
+int ipv6_route_open(struct inode *inode, struct file *file);
+
#ifdef CONFIG_IPV6_MULTIPLE_TABLES
int fib6_rules_init(void);
void fib6_rules_cleanup(void);