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RDS: use locking on the connection hash list
author
Chris Mason
<chris.mason@oracle.com>
Tue, 11 May 2010 22:14:52 +0000
(15:14 -0700)
committer
Andy Grover
<andy.grover@oracle.com>
Thu, 9 Sep 2010 01:15:11 +0000
(18:15 -0700)
rds_conn_destroy really needs locking while it changes the
connection hash.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
net/rds/connection.c
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diff --git
a/net/rds/connection.c
b/net/rds/connection.c
index
9c249f3
..
87df15b
100644
(file)
--- a/
net/rds/connection.c
+++ b/
net/rds/connection.c
@@
-321,7
+321,10
@@
void rds_conn_destroy(struct rds_connection *conn)
"%pI4\n", conn, &conn->c_laddr,
&conn->c_faddr);
+ /* Ensure conn will not be scheduled for reconnect */
+ spin_lock_irq(&rds_conn_lock);
hlist_del_init(&conn->c_hash_node);
+ spin_unlock_irq(&rds_conn_lock);
/* wait for the rds thread to shut it down */
atomic_set(&conn->c_state, RDS_CONN_ERROR);