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RDS: Stop supporting old cong map sending method

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We now ask the transport to give us a rm for the congestion
map, and then we handle it normally. Previously, the
transport defined a function that we would call to send
a congestion map.

Convert TCP and loop transports to new cong map method.

Signed-off-by: Andy Grover <andy.grover@oracle.com>
This commit is contained in:
Andy Grover
2010-03-22 15:22:04 -07:00
parent e32b4a7049
commit 77dd550e55
8 changed files with 13 additions and 106 deletions
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39
net/rds/send.c
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@@ -147,41 +147,16 @@ int rds_send_xmit(struct rds_connection *conn)
/*
* If between sending messages, we can send a pending congestion
* map update.
*
* Transports either define a special xmit_cong_map function,
* or we allocate a cong_map message and treat it just like any
* other send.
*/
if (!rm && test_and_clear_bit(0, &conn->c_map_queued)) {
if (conn->c_trans->xmit_cong_map) {
unsigned long map_offset = 0;
unsigned long map_bytes = sizeof(struct rds_header) +
RDS_CONG_MAP_BYTES;
while (map_bytes) {
ret = conn->c_trans->xmit_cong_map(conn, conn->c_lcong,
map_offset);
if (ret <= 0) {
/* too far down the rabbithole! */
mutex_unlock(&conn->c_send_lock);
rds_conn_error(conn, "Cong map xmit failed\n");
goto out;
}
map_offset += ret;
map_bytes -= ret;
}
} else {
/* send cong update like a normal rm */
rm = rds_cong_update_alloc(conn);
if (IS_ERR(rm)) {
ret = PTR_ERR(rm);
break;
}
rm->data.op_active = 1;
conn->c_xmit_rm = rm;
rm = rds_cong_update_alloc(conn);
if (IS_ERR(rm)) {
ret = PTR_ERR(rm);
break;
}
rm->data.op_active = 1;
conn->c_xmit_rm = rm;
}
/*