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RDS: Add rds_send_path_reset() 

rds_send_path_reset() is the path specific version of rds_send_reset()
intended for MP capable callers.

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sowmini Varadhan 2016-06-13 09:44:30 -07:00 committed by David S. Miller
parent 5e833e025d
commit 4e9b551c14
1 changed files with 22 additions and 17 deletions
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39
net/rds/send.c
View File

@ -63,14 +63,14 @@ static void rds_send_remove_from_sock(struct list_head *messages, int status);
* Reset the send state. Callers must ensure that this doesn't race with * Reset the send state. Callers must ensure that this doesn't race with
* rds_send_xmit(). * rds_send_xmit().
*/ */
void rds_send_reset(struct rds_connection *conn) static void rds_send_path_reset(struct rds_conn_path *cp)
{ {
struct rds_message *rm, *tmp; struct rds_message *rm, *tmp;
unsigned long flags; unsigned long flags;
if (conn->c_xmit_rm) { if (cp->cp_xmit_rm) {
rm = conn->c_xmit_rm; rm = cp->cp_xmit_rm;
conn->c_xmit_rm = NULL; cp->cp_xmit_rm = NULL;
/* Tell the user the RDMA op is no longer mapped by the /* Tell the user the RDMA op is no longer mapped by the
* transport. This isn't entirely true (it's flushed out * transport. This isn't entirely true (it's flushed out
* independently) but as the connection is down, there's * independently) but as the connection is down, there's
@ -79,26 +79,31 @@ void rds_send_reset(struct rds_connection *conn)
rds_message_put(rm); rds_message_put(rm);
} }
conn->c_xmit_sg = 0; cp->cp_xmit_sg = 0;
conn->c_xmit_hdr_off = 0; cp->cp_xmit_hdr_off = 0;
conn->c_xmit_data_off = 0; cp->cp_xmit_data_off = 0;
conn->c_xmit_atomic_sent = 0; cp->cp_xmit_atomic_sent = 0;
conn->c_xmit_rdma_sent = 0; cp->cp_xmit_rdma_sent = 0;
conn->c_xmit_data_sent = 0; cp->cp_xmit_data_sent = 0;
conn->c_map_queued = 0; cp->cp_conn->c_map_queued = 0;
conn->c_unacked_packets = rds_sysctl_max_unacked_packets; cp->cp_unacked_packets = rds_sysctl_max_unacked_packets;
conn->c_unacked_bytes = rds_sysctl_max_unacked_bytes; cp->cp_unacked_bytes = rds_sysctl_max_unacked_bytes;
/* Mark messages as retransmissions, and move them to the send q */ /* Mark messages as retransmissions, and move them to the send q */
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) {
set_bit(RDS_MSG_ACK_REQUIRED, &rm->m_flags); set_bit(RDS_MSG_ACK_REQUIRED, &rm->m_flags);
set_bit(RDS_MSG_RETRANSMITTED, &rm->m_flags); set_bit(RDS_MSG_RETRANSMITTED, &rm->m_flags);
} }
list_splice_init(&conn->c_retrans, &conn->c_send_queue); list_splice_init(&cp->cp_retrans, &cp->cp_send_queue);
spin_unlock_irqrestore(&conn->c_lock, flags); spin_unlock_irqrestore(&cp->cp_lock, flags);
}
void rds_send_reset(struct rds_connection *conn)
{
rds_send_path_reset(&conn->c_path[0]);
} }
EXPORT_SYMBOL_GPL(rds_send_reset); EXPORT_SYMBOL_GPL(rds_send_reset);