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authorSowmini Varadhan <sowmini.varadhan@oracle.com>2016-06-13 19:44:31 +0300
committerDavid S. Miller <davem@davemloft.net>2016-06-15 09:50:42 +0300
commit5c3d274c75fbcee8e1c919acf25c7feb19a31492 (patch)
tree12a6866c54689336ef1302b981964448eae27c18 /net/rds
parent4e9b551c14560399776c05f4234650c6d3729458 (diff)
downloadlinux-5c3d274c75fbcee8e1c919acf25c7feb19a31492.tar.xz
RDS: Add rds_send_path_drop_acked()
rds_send_path_drop_acked() is the path-specific version of rds_send_drop_acked() to be invoked by MP capable callers. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/rds')
-rw-r--r--net/rds/rds.h2
-rw-r--r--net/rds/send.c18
2 files changed, 15 insertions, 5 deletions
diff --git a/net/rds/rds.h b/net/rds/rds.h
index c3b14ccd7037..d94aa36cab93 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -786,6 +786,8 @@ void rds_send_drop_to(struct rds_sock *rs, struct sockaddr_in *dest);
typedef int (*is_acked_func)(struct rds_message *rm, uint64_t ack);
void rds_send_drop_acked(struct rds_connection *conn, u64 ack,
is_acked_func is_acked);
+void rds_send_path_drop_acked(struct rds_conn_path *cp, u64 ack,
+ is_acked_func is_acked);
int rds_send_pong(struct rds_connection *conn, __be16 dport);
struct rds_message *rds_send_get_message(struct rds_connection *,
struct rm_rdma_op *);
diff --git a/net/rds/send.c b/net/rds/send.c
index bfb3e0530213..3f6a96cb3b94 100644
--- a/net/rds/send.c
+++ b/net/rds/send.c
@@ -691,16 +691,16 @@ unlock_and_drop:
* assigned the m_ack_seq yet - but that's fine as long as tcp_is_acked
* checks the RDS_MSG_HAS_ACK_SEQ bit.
*/
-void rds_send_drop_acked(struct rds_connection *conn, u64 ack,
- is_acked_func is_acked)
+void rds_send_path_drop_acked(struct rds_conn_path *cp, u64 ack,
+ is_acked_func is_acked)
{
struct rds_message *rm, *tmp;
unsigned long flags;
LIST_HEAD(list);
- spin_lock_irqsave(&conn->c_lock, flags);
+ spin_lock_irqsave(&cp->cp_lock, flags);
- list_for_each_entry_safe(rm, tmp, &conn->c_retrans, m_conn_item) {
+ list_for_each_entry_safe(rm, tmp, &cp->cp_retrans, m_conn_item) {
if (!rds_send_is_acked(rm, ack, is_acked))
break;
@@ -712,11 +712,19 @@ void rds_send_drop_acked(struct rds_connection *conn, u64 ack,
if (!list_empty(&list))
smp_mb__after_atomic();
- spin_unlock_irqrestore(&conn->c_lock, flags);
+ spin_unlock_irqrestore(&cp->cp_lock, flags);
/* now remove the messages from the sock list as needed */
rds_send_remove_from_sock(&list, RDS_RDMA_SUCCESS);
}
+EXPORT_SYMBOL_GPL(rds_send_path_drop_acked);
+
+void rds_send_drop_acked(struct rds_connection *conn, u64 ack,
+ is_acked_func is_acked)
+{
+ WARN_ON(conn->c_trans->t_mp_capable);
+ rds_send_path_drop_acked(&conn->c_path[0], ack, is_acked);
+}
EXPORT_SYMBOL_GPL(rds_send_drop_acked);
void rds_send_drop_to(struct rds_sock *rs, struct sockaddr_in *dest)