diff options
| author | Ying Xue <ying.xue@windriver.com> | 2013-10-18 07:23:18 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-10-18 13:20:43 -0400 |
| commit | f2875c3cc4769d07bab3bc6e51c386840a7de280 (patch) | |
| tree | 22ad4a05e77bad4316b5d95bfe397f83f4b3615f /net/tipc | |
| parent | 4babbaa8a1ecf1cb76de5e1635417c7472190ef5 (diff) | |
| download | linux-f2875c3cc4769d07bab3bc6e51c386840a7de280.tar.gz | |
tipc: avoid unnecessary lookup for tipc bearer instance
tipc_block_bearer() currently takes a bearer name (const char*) as argument. This requires the function to make a lookup to find the pointer to the corresponding bearer struct. In the current code base this is not necessary, since the only two callers (tipc_continue(),recv_notification()) already have validated copies of this pointer, and hence can pass it directly in the function call. We change tipc_block_bearer() to directly take struct tipc_bearer* as argument instead. Signed-off-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc')
| -rw-r--r-- | net/tipc/bearer.c | 14 | ||||
| -rw-r--r-- | net/tipc/bearer.h | 2 | ||||
| -rw-r--r-- | net/tipc/eth_media.c | 6 | ||||
| -rw-r--r-- | net/tipc/ib_media.c | 6 |
4 files changed, 10 insertions, 18 deletions
diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c index 09faa5520079..3f9707a16d06 100644 --- a/net/tipc/bearer.c +++ b/net/tipc/bearer.c @@ -420,23 +420,15 @@ exit: } /** - * tipc_block_bearer - Block the bearer with the given name, and reset all its links + * tipc_block_bearer - Block the bearer, and reset all its links */ -int tipc_block_bearer(const char *name) +int tipc_block_bearer(struct tipc_bearer *b_ptr) { - struct tipc_bearer *b_ptr = NULL; struct tipc_link *l_ptr; struct tipc_link *temp_l_ptr; read_lock_bh(&tipc_net_lock); - b_ptr = tipc_bearer_find(name); - if (!b_ptr) { - pr_warn("Attempt to block unknown bearer <%s>\n", name); - read_unlock_bh(&tipc_net_lock); - return -EINVAL; - } - - pr_info("Blocking bearer <%s>\n", name); + pr_info("Blocking bearer <%s>\n", b_ptr->name); spin_lock_bh(&b_ptr->lock); b_ptr->blocked = 1; list_for_each_entry_safe(l_ptr, temp_l_ptr, &b_ptr->links, link_list) { diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h index f800e63980cf..e5e04be6fffa 100644 --- a/net/tipc/bearer.h +++ b/net/tipc/bearer.h @@ -163,7 +163,7 @@ int tipc_register_media(struct tipc_media *m_ptr); void tipc_recv_msg(struct sk_buff *buf, struct tipc_bearer *tb_ptr); -int tipc_block_bearer(const char *name); +int tipc_block_bearer(struct tipc_bearer *b_ptr); void tipc_continue(struct tipc_bearer *tb_ptr); int tipc_enable_bearer(const char *bearer_name, u32 disc_domain, u32 priority); diff --git a/net/tipc/eth_media.c b/net/tipc/eth_media.c index e048d491cc0b..c36c938306a1 100644 --- a/net/tipc/eth_media.c +++ b/net/tipc/eth_media.c @@ -265,17 +265,17 @@ static int recv_notification(struct notifier_block *nb, unsigned long evt, if (netif_carrier_ok(dev)) tipc_continue(eb_ptr->bearer); else - tipc_block_bearer(eb_ptr->bearer->name); + tipc_block_bearer(eb_ptr->bearer); break; case NETDEV_UP: tipc_continue(eb_ptr->bearer); break; case NETDEV_DOWN: - tipc_block_bearer(eb_ptr->bearer->name); + tipc_block_bearer(eb_ptr->bearer); break; case NETDEV_CHANGEMTU: case NETDEV_CHANGEADDR: - tipc_block_bearer(eb_ptr->bearer->name); + tipc_block_bearer(eb_ptr->bearer); tipc_continue(eb_ptr->bearer); break; case NETDEV_UNREGISTER: diff --git a/net/tipc/ib_media.c b/net/tipc/ib_media.c index 5545145ccffa..20b1aa464321 100644 --- a/net/tipc/ib_media.c +++ b/net/tipc/ib_media.c @@ -258,17 +258,17 @@ static int recv_notification(struct notifier_block *nb, unsigned long evt, if (netif_carrier_ok(dev)) tipc_continue(ib_ptr->bearer); else - tipc_block_bearer(ib_ptr->bearer->name); + tipc_block_bearer(ib_ptr->bearer); break; case NETDEV_UP: tipc_continue(ib_ptr->bearer); break; case NETDEV_DOWN: - tipc_block_bearer(ib_ptr->bearer->name); + tipc_block_bearer(ib_ptr->bearer); break; case NETDEV_CHANGEMTU: case NETDEV_CHANGEADDR: - tipc_block_bearer(ib_ptr->bearer->name); + tipc_block_bearer(ib_ptr->bearer); tipc_continue(ib_ptr->bearer); break; case NETDEV_UNREGISTER: |