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-rw-r--r--net/rds/ib_send.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/net/rds/ib_send.c b/net/rds/ib_send.c
index 71f373c..c47a511 100644
--- a/net/rds/ib_send.c
+++ b/net/rds/ib_send.c
@@ -551,7 +551,10 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
if (conn->c_loopback
&& 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;
+ scat = &rm->data.op_sg[sg];
+ ret = sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ ret = min_t(int, ret, scat->length - conn->c_xmit_data_off);
+ return ret;
}
/* FIXME we may overallocate here */
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