diff options
| author | Andy Grover <andy.grover@oracle.com> | 2009-04-01 08:20:19 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-04-02 00:52:22 -0700 |
| commit | 745cbccac3fe8cead529a1b3358e1e86a1505bfa (patch) | |
| tree | 6c865b19881dbdd64556cc1827f6966d8a646a38 /net/rds/iw.h | |
| parent | f1cffcbfcc53b825da7d1d26244aabd8dccb24aa (diff) | |
| download | op-kernel-dev-745cbccac3fe8cead529a1b3358e1e86a1505bfa.zip op-kernel-dev-745cbccac3fe8cead529a1b3358e1e86a1505bfa.tar.gz | |
RDS: Rewrite connection cleanup, fixing oops on rmmod
This fixes a bug where a connection was unexpectedly
not on *any* list while being destroyed. It also
cleans up some code duplication and regularizes some
function names.
* Grab appropriate lock in conn_free() and explain in comment
* Ensure via locking that a conn is never not on either
a dev's list or the nodev list
* Add rds_xx_remove_conn() to match rds_xx_add_conn()
* Make rds_xx_add_conn() return void
* Rename remove_{,nodev_}conns() to
destroy_{,nodev_}conns() and unify their implementation
in a helper function
* Document lock ordering as nodev conn_lock before
dev_conn_lock
Reported-by: Yosef Etigin <yosefe@voltaire.com>
Signed-off-by: Andy Grover <andy.grover@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/rds/iw.h')
| -rw-r--r-- | net/rds/iw.h | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/net/rds/iw.h b/net/rds/iw.h index 0ddda34..70eb948 100644 --- a/net/rds/iw.h +++ b/net/rds/iw.h @@ -294,9 +294,17 @@ void rds_iw_cm_connect_complete(struct rds_connection *conn, /* ib_rdma.c */ int rds_iw_update_cm_id(struct rds_iw_device *rds_iwdev, struct rdma_cm_id *cm_id); -int rds_iw_add_conn(struct rds_iw_device *rds_iwdev, struct rds_connection *conn); -void rds_iw_remove_nodev_conns(void); -void rds_iw_remove_conns(struct rds_iw_device *rds_iwdev); +void rds_iw_add_conn(struct rds_iw_device *rds_iwdev, struct rds_connection *conn); +void rds_iw_remove_conn(struct rds_iw_device *rds_iwdev, struct rds_connection *conn); +void __rds_iw_destroy_conns(struct list_head *list, spinlock_t *list_lock); +static inline void rds_iw_destroy_nodev_conns(void) +{ + __rds_iw_destroy_conns(&iw_nodev_conns, &iw_nodev_conns_lock); +} +static inline void rds_iw_destroy_conns(struct rds_iw_device *rds_iwdev) +{ + __rds_iw_destroy_conns(&rds_iwdev->conn_list, &rds_iwdev->spinlock); +} struct rds_iw_mr_pool *rds_iw_create_mr_pool(struct rds_iw_device *); void rds_iw_get_mr_info(struct rds_iw_device *rds_iwdev, struct rds_info_rdma_connection *iinfo); void rds_iw_destroy_mr_pool(struct rds_iw_mr_pool *); |
