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authorAndy Grover <andy.grover@oracle.com>2010-03-22 15:22:04 -0700
committerAndy Grover <andy.grover@oracle.com>2010-09-08 18:12:10 -0700
commit77dd550e5547846604ff6f90c4dc6bba4414e485 (patch)
treeea37afea7f0d857e01f214f703018426f6d8b920 /net/rds/loop.c
parente32b4a70495aac6a612e13f4c21db09dd756ff2c (diff)
downloadlinux-77dd550e5547846604ff6f90c4dc6bba4414e485.tar.gz
RDS: Stop supporting old cong map sending method
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>
Diffstat (limited to 'net/rds/loop.c')
-rw-r--r--net/rds/loop.c19
1 files changed, 6 insertions, 13 deletions
diff --git a/net/rds/loop.c b/net/rds/loop.c
index 4a3dd49315b4..c390156b426f 100644
--- a/net/rds/loop.c
+++ b/net/rds/loop.c
@@ -61,6 +61,12 @@ static int rds_loop_xmit(struct rds_connection *conn, struct rds_message *rm,
 			 unsigned int hdr_off, unsigned int sg,
 			 unsigned int off)
 {
+	/* Do not send cong updates to loopback */
+	if (rm->m_inc.i_hdr.h_flags & RDS_FLAG_CONG_BITMAP) {
+		rds_cong_map_updated(conn->c_fcong, ~(u64) 0);
+		return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+	}
+
 	BUG_ON(hdr_off || sg || off);
 
 	rds_inc_init(&rm->m_inc, conn, conn->c_laddr);
@@ -88,18 +94,6 @@ static void rds_loop_inc_free(struct rds_incoming *inc)
         rds_message_put(rm);
 }
 
-static int rds_loop_xmit_cong_map(struct rds_connection *conn,
-				  struct rds_cong_map *map,
-				  unsigned long offset)
-{
-	BUG_ON(offset);
-	BUG_ON(map != conn->c_lcong);
-
-	rds_cong_map_updated(conn->c_fcong, ~(u64) 0);
-
-	return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
-}
-
 /* we need to at least give the thread something to succeed */
 static int rds_loop_recv(struct rds_connection *conn)
 {
@@ -180,7 +174,6 @@ void rds_loop_exit(void)
  */
 struct rds_transport rds_loop_transport = {
 	.xmit			= rds_loop_xmit,
-	.xmit_cong_map		= rds_loop_xmit_cong_map,
 	.recv			= rds_loop_recv,
 	.conn_alloc		= rds_loop_conn_alloc,
 	.conn_free		= rds_loop_conn_free,