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authorZach Brown <zach.brown@oracle.com>2010-07-23 21:32:31 +0400
committerAndy Grover <andy.grover@oracle.com>2010-09-09 05:16:47 +0400
commit5adb5bc65f93e52341c3fc9d03d4030dd375e256 (patch)
tree55b19c7757ccd64f58169a05cd63e91bee409bad /net/rds/rds.h
parent77510481c0c3980c8979ed236d63e59221fb8ce5 (diff)
downloadlinux-5adb5bc65f93e52341c3fc9d03d4030dd375e256.tar.xz
RDS: have sockets get transport module references
Right now there's nothing to stop the various paths that use rs->rs_transport from racing with rmmod and executing freed transport code. The simple fix is to have binding to a transport also hold a reference to the transport's module, removing this class of races. We already had an unused t_owner field which was set for the modular transports and which wasn't set for the built-in loop transport. Signed-off-by: Zach Brown <zach.brown@oracle.com>
Diffstat (limited to 'net/rds/rds.h')
-rw-r--r--net/rds/rds.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/rds/rds.h b/net/rds/rds.h
index 2ff7fc9f0539..aab5e949fa93 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -798,6 +798,7 @@ void rds_connect_complete(struct rds_connection *conn);
int rds_trans_register(struct rds_transport *trans);
void rds_trans_unregister(struct rds_transport *trans);
struct rds_transport *rds_trans_get_preferred(__be32 addr);
+void rds_trans_put(struct rds_transport *trans);
unsigned int rds_trans_stats_info_copy(struct rds_info_iterator *iter,
unsigned int avail);
int rds_trans_init(void);