mirror of
https://git.proxmox.com/git/mirror_ubuntu-kernels.git
synced 2025-11-09 19:01:30 +00:00
a90c9347e9
Having a global list of labels do not scale to thousands of
netns in the cloud era. This causes quadratic behavior on
netns creation and deletion.
This is time having a per netns list of ~10 labels.
Tested:
$ time perf record (for f in `seq 1 3000` ; do ip netns add tast$f; done)
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 3.637 MB perf.data (~158898 samples) ]
real 0m20.837s # instead of 0m24.227s
user 0m0.328s
sys 0m20.338s # instead of 0m23.753s
16.17% ip [kernel.kallsyms] [k] netlink_broadcast_filtered
12.30% ip [kernel.kallsyms] [k] netlink_has_listeners
6.76% ip [kernel.kallsyms] [k] _raw_spin_lock_irqsave
5.78% ip [kernel.kallsyms] [k] memset_erms
5.77% ip [kernel.kallsyms] [k] kobject_uevent_env
5.18% ip [kernel.kallsyms] [k] refcount_sub_and_test
4.96% ip [kernel.kallsyms] [k] _raw_read_lock
3.82% ip [kernel.kallsyms] [k] refcount_inc_not_zero
3.33% ip [kernel.kallsyms] [k] _raw_spin_unlock_irqrestore
2.11% ip [kernel.kallsyms] [k] unmap_page_range
1.77% ip [kernel.kallsyms] [k] __wake_up
1.69% ip [kernel.kallsyms] [k] strlen
1.17% ip [kernel.kallsyms] [k] __wake_up_common
1.09% ip [kernel.kallsyms] [k] insert_header
1.04% ip [kernel.kallsyms] [k] page_remove_rmap
1.01% ip [kernel.kallsyms] [k] consume_skb
0.98% ip [kernel.kallsyms] [k] netlink_trim
0.51% ip [kernel.kallsyms] [k] kernfs_link_sibling
0.51% ip [kernel.kallsyms] [k] filemap_map_pages
0.46% ip [kernel.kallsyms] [k] memcpy_erms
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
107 lines
2.5 KiB
C
107 lines
2.5 KiB
C
/*
|
|
* ipv6 in net namespaces
|
|
*/
|
|
|
|
#include <net/inet_frag.h>
|
|
|
|
#ifndef __NETNS_IPV6_H__
|
|
#define __NETNS_IPV6_H__
|
|
#include <net/dst_ops.h>
|
|
|
|
struct ctl_table_header;
|
|
|
|
struct netns_sysctl_ipv6 {
|
|
#ifdef CONFIG_SYSCTL
|
|
struct ctl_table_header *hdr;
|
|
struct ctl_table_header *route_hdr;
|
|
struct ctl_table_header *icmp_hdr;
|
|
struct ctl_table_header *frags_hdr;
|
|
struct ctl_table_header *xfrm6_hdr;
|
|
#endif
|
|
int bindv6only;
|
|
int flush_delay;
|
|
int ip6_rt_max_size;
|
|
int ip6_rt_gc_min_interval;
|
|
int ip6_rt_gc_timeout;
|
|
int ip6_rt_gc_interval;
|
|
int ip6_rt_gc_elasticity;
|
|
int ip6_rt_mtu_expires;
|
|
int ip6_rt_min_advmss;
|
|
int flowlabel_consistency;
|
|
int auto_flowlabels;
|
|
int icmpv6_time;
|
|
int anycast_src_echo_reply;
|
|
int ip_nonlocal_bind;
|
|
int fwmark_reflect;
|
|
int idgen_retries;
|
|
int idgen_delay;
|
|
int flowlabel_state_ranges;
|
|
int flowlabel_reflect;
|
|
};
|
|
|
|
struct netns_ipv6 {
|
|
struct netns_sysctl_ipv6 sysctl;
|
|
struct ipv6_devconf *devconf_all;
|
|
struct ipv6_devconf *devconf_dflt;
|
|
struct inet_peer_base *peers;
|
|
struct netns_frags frags;
|
|
#ifdef CONFIG_NETFILTER
|
|
struct xt_table *ip6table_filter;
|
|
struct xt_table *ip6table_mangle;
|
|
struct xt_table *ip6table_raw;
|
|
#ifdef CONFIG_SECURITY
|
|
struct xt_table *ip6table_security;
|
|
#endif
|
|
struct xt_table *ip6table_nat;
|
|
#endif
|
|
struct rt6_info *ip6_null_entry;
|
|
struct rt6_statistics *rt6_stats;
|
|
struct timer_list ip6_fib_timer;
|
|
struct hlist_head *fib_table_hash;
|
|
struct fib6_table *fib6_main_tbl;
|
|
struct list_head fib6_walkers;
|
|
struct dst_ops ip6_dst_ops;
|
|
rwlock_t fib6_walker_lock;
|
|
spinlock_t fib6_gc_lock;
|
|
unsigned int ip6_rt_gc_expire;
|
|
unsigned long ip6_rt_last_gc;
|
|
#ifdef CONFIG_IPV6_MULTIPLE_TABLES
|
|
bool fib6_has_custom_rules;
|
|
struct rt6_info *ip6_prohibit_entry;
|
|
struct rt6_info *ip6_blk_hole_entry;
|
|
struct fib6_table *fib6_local_tbl;
|
|
struct fib_rules_ops *fib6_rules_ops;
|
|
#endif
|
|
struct sock **icmp_sk;
|
|
struct sock *ndisc_sk;
|
|
struct sock *tcp_sk;
|
|
struct sock *igmp_sk;
|
|
struct sock *mc_autojoin_sk;
|
|
#ifdef CONFIG_IPV6_MROUTE
|
|
#ifndef CONFIG_IPV6_MROUTE_MULTIPLE_TABLES
|
|
struct mr6_table *mrt6;
|
|
#else
|
|
struct list_head mr6_tables;
|
|
struct fib_rules_ops *mr6_rules_ops;
|
|
#endif
|
|
#endif
|
|
atomic_t dev_addr_genid;
|
|
atomic_t fib6_sernum;
|
|
struct seg6_pernet_data *seg6_data;
|
|
struct fib_notifier_ops *notifier_ops;
|
|
struct {
|
|
struct hlist_head head;
|
|
spinlock_t lock;
|
|
u32 seq;
|
|
} ip6addrlbl_table;
|
|
};
|
|
|
|
#if IS_ENABLED(CONFIG_NF_DEFRAG_IPV6)
|
|
struct netns_nf_frag {
|
|
struct netns_sysctl_ipv6 sysctl;
|
|
struct netns_frags frags;
|
|
};
|
|
#endif
|
|
|
|
#endif
|