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tipc: eliminate configuration for maximum number of name subscriptions

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Gets rid of the need for users to specify the maximum number of
name subscriptions supported by TIPC. TIPC now automatically provides
support for the maximum number of name subscriptions to 65535.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ying Xue 2012-08-16 12:09:13 +00:00 committed by David S. Miller
parent 61cdd4d80b
commit 34f256cc79
5 changed files with 9 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
include/linux/tipc_config.h
View File

@ -90,7 +90,7 @@
#define TIPC_CMD_GET_REMOTE_MNG 0x4003 /* tx none, rx unsigned */
#define TIPC_CMD_GET_MAX_PORTS 0x4004 /* tx none, rx unsigned */
#define TIPC_CMD_GET_MAX_PUBL 0x4005 /* tx none, rx unsigned */
#define TIPC_CMD_GET_MAX_SUBSCR 0x4006 /* tx none, rx unsigned */
#define TIPC_CMD_GET_MAX_SUBSCR 0x4006 /* obsoleted */
#define TIPC_CMD_GET_MAX_ZONES 0x4007 /* obsoleted */
#define TIPC_CMD_GET_MAX_CLUSTERS 0x4008 /* obsoleted */
#define TIPC_CMD_GET_MAX_NODES 0x4009 /* obsoleted */
@ -116,7 +116,7 @@
#define TIPC_CMD_SET_REMOTE_MNG 0x8003 /* tx unsigned, rx none */
#define TIPC_CMD_SET_MAX_PORTS 0x8004 /* tx unsigned, rx none */
#define TIPC_CMD_SET_MAX_PUBL 0x8005 /* tx unsigned, rx none */
#define TIPC_CMD_SET_MAX_SUBSCR 0x8006 /* tx unsigned, rx none */
#define TIPC_CMD_SET_MAX_SUBSCR 0x8006 /* obsoleted */
#define TIPC_CMD_SET_MAX_ZONES 0x8007 /* obsoleted */
#define TIPC_CMD_SET_MAX_CLUSTERS 0x8008 /* obsoleted */
#define TIPC_CMD_SET_MAX_NODES 0x8009 /* obsoleted */

25
net/tipc/config.c
View File

@ -2,7 +2,7 @@
* net/tipc/config.c: TIPC configuration management code
*
* Copyright (c) 2002-2006, Ericsson AB
* Copyright (c) 2004-2007, 2010-2011, Wind River Systems
* Copyright (c) 2004-2007, 2010-2012, Wind River Systems
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -223,21 +223,6 @@ static struct sk_buff *cfg_set_max_publications(void)
return tipc_cfg_reply_none();
}
static struct sk_buff *cfg_set_max_subscriptions(void)
{
u32 value;
if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED))
return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area));
if (value < 1 || value > 65535)
return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
" (max subscriptions must be 1-65535");
tipc_max_subscriptions = value;
return tipc_cfg_reply_none();
}
static struct sk_buff *cfg_set_max_ports(void)
{
u32 value;
@ -360,9 +345,6 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area
case TIPC_CMD_SET_MAX_PUBL:
rep_tlv_buf = cfg_set_max_publications();
break;
case TIPC_CMD_SET_MAX_SUBSCR:
rep_tlv_buf = cfg_set_max_subscriptions();
break;
case TIPC_CMD_SET_NETID:
rep_tlv_buf = cfg_set_netid();
break;
@ -375,9 +357,6 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area
case TIPC_CMD_GET_MAX_PUBL:
rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_publications);
break;
case TIPC_CMD_GET_MAX_SUBSCR:
rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_subscriptions);
break;
case TIPC_CMD_GET_NETID:
rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_net_id);
break;
@ -393,6 +372,8 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area
case TIPC_CMD_GET_MAX_CLUSTERS:
case TIPC_CMD_SET_MAX_NODES:
case TIPC_CMD_GET_MAX_NODES:
case TIPC_CMD_SET_MAX_SUBSCR:
case TIPC_CMD_GET_MAX_SUBSCR:
case TIPC_CMD_SET_LOG_SIZE:
case TIPC_CMD_DUMP_LOG:
rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED

2
net/tipc/core.c
View File

@ -53,7 +53,6 @@ int tipc_random __read_mostly;
/* configurable TIPC parameters */
u32 tipc_own_addr __read_mostly;
int tipc_max_ports __read_mostly;
int tipc_max_subscriptions;
int tipc_max_publications;
int tipc_net_id __read_mostly;
int tipc_remote_management __read_mostly;
@ -157,7 +156,6 @@ static int __init tipc_init(void)
tipc_own_addr = 0;
tipc_remote_management = 1;
tipc_max_publications = 10000;
tipc_max_subscriptions = 2000;
tipc_max_ports = CONFIG_TIPC_PORTS;
tipc_net_id = 4711;

4
net/tipc/core.h
View File

@ -60,7 +60,8 @@
#define TIPC_MOD_VER "2.0.0"
#define ULTRA_STRING_MAX_LEN 32768
#define ULTRA_STRING_MAX_LEN 32768
#define TIPC_MAX_SUBSCRIPTIONS 65535
struct tipc_msg; /* msg.h */
@ -76,7 +77,6 @@ int tipc_snprintf(char *buf, int len, const char *fmt, ...);
*/
extern u32 tipc_own_addr __read_mostly;
extern int tipc_max_ports __read_mostly;
extern int tipc_max_subscriptions;
extern int tipc_max_publications;
extern int tipc_net_id __read_mostly;
extern int tipc_remote_management __read_mostly;

4
net/tipc/subscr.c
View File

@ -304,9 +304,9 @@ static struct tipc_subscription *subscr_subscribe(struct tipc_subscr *s,
}
/* Refuse subscription if global limit exceeded */
if (atomic_read(&topsrv.subscription_count) >= tipc_max_subscriptions) {
if (atomic_read(&topsrv.subscription_count) >= TIPC_MAX_SUBSCRIPTIONS) {
pr_warn("Subscription rejected, limit reached (%u)\n",
tipc_max_subscriptions);
TIPC_MAX_SUBSCRIPTIONS);
subscr_terminate(subscriber);
return NULL;
}