From b3f575043fcd2926616a794db3f22280740fea6d Mon Sep 17 00:00:00 2001 From: David Howells Date: Tue, 21 Jun 2016 16:10:03 +0100 Subject: [PATCH] rxrpc: rxrpc_connection_lock shouldn't be a BH lock, but conn_lock is rxrpc_connection_lock shouldn't be accessed as a BH-excluding lock. It's only accessed in a few places and none of those are in BH-context. rxrpc_transport::conn_lock, however, *is* a BH-excluding lock and should be accessed so consistently. Signed-off-by: David Howells --- net/rxrpc/conn_object.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/net/rxrpc/conn_object.c b/net/rxrpc/conn_object.c index 3b42fc4f4fe3..cab2f6dbc5a1 100644 --- a/net/rxrpc/conn_object.c +++ b/net/rxrpc/conn_object.c @@ -356,9 +356,9 @@ static int rxrpc_connect_exclusive(struct rxrpc_sock *rx, return ret; } - write_lock_bh(&rxrpc_connection_lock); + write_lock(&rxrpc_connection_lock); list_add_tail(&conn->link, &rxrpc_connections); - write_unlock_bh(&rxrpc_connection_lock); + write_unlock(&rxrpc_connection_lock); spin_lock(&trans->client_lock); atomic_inc(&trans->usage); @@ -677,9 +677,9 @@ rxrpc_incoming_connection(struct rxrpc_transport *trans, struct sk_buff *skb) write_unlock_bh(&trans->conn_lock); - write_lock_bh(&rxrpc_connection_lock); + write_lock(&rxrpc_connection_lock); list_add_tail(&conn->link, &rxrpc_connections); - write_unlock_bh(&rxrpc_connection_lock); + write_unlock(&rxrpc_connection_lock); new = "new"; @@ -828,7 +828,7 @@ static void rxrpc_connection_reaper(struct work_struct *work) now = ktime_get_seconds(); earliest = ULONG_MAX; - write_lock_bh(&rxrpc_connection_lock); + write_lock(&rxrpc_connection_lock); list_for_each_entry_safe(conn, _p, &rxrpc_connections, link) { _debug("reap CONN %d { u=%d,t=%ld }", conn->debug_id, atomic_read(&conn->usage), @@ -838,7 +838,7 @@ static void rxrpc_connection_reaper(struct work_struct *work) continue; spin_lock(&conn->trans->client_lock); - write_lock(&conn->trans->conn_lock); + write_lock_bh(&conn->trans->conn_lock); reap_time = conn->put_time + rxrpc_connection_expiry; if (atomic_read(&conn->usage) > 0) { @@ -860,10 +860,10 @@ static void rxrpc_connection_reaper(struct work_struct *work) earliest = reap_time; } - write_unlock(&conn->trans->conn_lock); + write_unlock_bh(&conn->trans->conn_lock); spin_unlock(&conn->trans->client_lock); } - write_unlock_bh(&rxrpc_connection_lock); + write_unlock(&rxrpc_connection_lock); if (earliest != ULONG_MAX) { _debug("reschedule reaper %ld", (long) earliest - now); -- GitLab