diff options
| author |   Ying Xue <ying.xue@windriver.com> | 2014-12-02 15:00:24 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-12-08 20:39:56 -0500 |
| commit | 993bfe5daf34c645a51348facdc7c28c55f488fe (patch) | |
| tree | 004748177d0ee50bfad2e6b12f3364f7e047adf9 /net/tipc/name_table.h | |
| parent | tipc: remove size variable from publ_list struct (diff) | |
| download | linux-dev-993bfe5daf34c645a51348facdc7c28c55f488fe.tar.xz linux-dev-993bfe5daf34c645a51348facdc7c28c55f488fe.zip | |
tipc: make name table allocated dynamically
Name table locking policy is going to be adjusted from read-write
lock protection to RCU lock protection in the future commits. But
its essential precondition is to convert the allocation way of name
table from static to dynamic mode.
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Tested-by: Erik Hugne <erik.hugne@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc/name_table.h')
| -rw-r--r-- | net/tipc/name_table.h | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/net/tipc/name_table.h b/net/tipc/name_table.h index c62877826655..c1fd734eb0d5 100644 --- a/net/tipc/name_table.h +++ b/net/tipc/name_table.h @@ -43,7 +43,9 @@ struct tipc_port_list; /* * TIPC name types reserved for internal TIPC use (both current and planned) */ -#define TIPC_ZM_SRV 3 /* zone master service name type */ +#define TIPC_ZM_SRV 3 /* zone master service name type */ +#define TIPC_PUBL_SCOPE_NUM (TIPC_NODE_SCOPE + 1) +#define TIPC_NAMETBL_SIZE 1024 /* must be a power of 2 */ /** * struct publication - info about a published (name or) name sequence @@ -79,8 +81,20 @@ struct publication { struct list_head zone_list; }; +/** + * struct name_table - table containing all existing port name publications + * @seq_hlist: name sequence hash lists + * @publ_list: pulication lists + * @local_publ_count: number of publications issued by this node + */ +struct name_table { + struct hlist_head seq_hlist[TIPC_NAMETBL_SIZE]; + struct list_head publ_list[TIPC_PUBL_SCOPE_NUM]; + u32 local_publ_count; +}; extern rwlock_t tipc_nametbl_lock; +extern struct name_table *tipc_nametbl; int tipc_nl_name_table_dump(struct sk_buff *skb, struct netlink_callback *cb); |