diff options
| author |   Sagi Grimberg <sagig@mellanox.com> | 2014-10-01 14:02:02 +0300 |
|---|---|---|
| committer |   Roland Dreier <roland@purestorage.com> | 2014-10-09 00:06:06 -0700 |
| commit | c107a6c0cf1ab883ea87ca50136f4fc5204a4b82 (patch) | |
| tree | f86ffda64d488b89aa89b5423d45923aded137b8 /drivers/infiniband | |
| parent | IB/iser: Fix DEVICE REMOVAL handling in the absence of iscsi daemon (diff) | |
| download | linux-dev-c107a6c0cf1ab883ea87ca50136f4fc5204a4b82.tar.xz linux-dev-c107a6c0cf1ab883ea87ca50136f4fc5204a4b82.zip | |
IB/iser: Don't bound release_work completions timeouts
We no longer rely on iscsi connection teardown sequence, so no need to
give a grace period and continue cleanup if it expired. Have
iser_conn_release wait for full completion before freeing iser_conn.
ib_completion:
Guaranteed to come when:
- Got DISCONNECTED/ADDR_CHANGE event or
- iSCSI called ep_disconnect/conn_stop
Guaranteed to finish when:
- Got TIMEWAIT_EXIT/DEVICE_REMOVAL event
- All Flush errors are consumed
- IB related resources are destroyed
stop_completion:
Guaranteed to come when:
- iSCSI calls conn_stop
Guaranteed to finish when:
- All inflight tasks were cleaned up
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Ariel Nahum <arieln@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/ulp/iser/iser_verbs.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c index 6170d06a8acc..6ce20fd9abac 100644 --- a/drivers/infiniband/ulp/iser/iser_verbs.c +++ b/drivers/infiniband/ulp/iser/iser_verbs.c @@ -566,18 +566,13 @@ static int iser_conn_state_comp_exch(struct iser_conn *iser_conn, void iser_release_work(struct work_struct *work) { struct iser_conn *iser_conn; - int rc; iser_conn = container_of(work, struct iser_conn, release_work); - /* wait for .conn_stop callback */ - rc = wait_for_completion_timeout(&iser_conn->stop_completion, 30 * HZ); - WARN_ON(rc == 0); - - rc = wait_for_completion_timeout(&iser_conn->ib_completion, 30 * HZ); - if (rc == 0) - iser_warn("conn %p, IB cleanup didn't complete in 30 " - "seconds, continue with release\n", iser_conn); + /* Wait for conn_stop to complete */ + wait_for_completion(&iser_conn->stop_completion); + /* Wait for IB resouces cleanup to complete */ + wait_for_completion(&iser_conn->ib_completion); mutex_lock(&iser_conn->state_mutex); iser_conn->state = ISER_CONN_DOWN; |