diff options
| author | Sagi Grimberg <sagig@mellanox.com> | 2014-05-19 17:44:22 +0300 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-05-19 14:32:58 -0700 |
| commit | e346ab343f4f58c12a96725c7b13df9cc2ad56f6 (patch) | |
| tree | 56838c9dc004b3af44b3346118310ed2940dc609 | |
| parent | 1e1110c43b1cda9fe77fc4a04835e460550e6b3c (diff) | |
Target/iser: Bail from accept_np if np_thread is trying to close
In case np_thread state is in RESET/SHUTDOWN/EXIT states,
no point for isert to stall there as we may get a hang in
case no one will wake it up later.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
| -rw-r--r-- | drivers/infiniband/ulp/isert/ib_isert.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c index a1710465faa..7676bcb7105 100644 --- a/drivers/infiniband/ulp/isert/ib_isert.c +++ b/drivers/infiniband/ulp/isert/ib_isert.c @@ -3154,9 +3154,14 @@ accept_wait: return -ENODEV; spin_lock_bh(&np->np_thread_lock); - if (np->np_thread_state == ISCSI_NP_THREAD_RESET) { + if (np->np_thread_state >= ISCSI_NP_THREAD_RESET) { spin_unlock_bh(&np->np_thread_lock); - pr_debug("ISCSI_NP_THREAD_RESET for isert_accept_np\n"); + pr_debug("np_thread_state %d for isert_accept_np\n", + np->np_thread_state); + /** + * No point in stalling here when np_thread + * is in state RESET/SHUTDOWN/EXIT - bail + **/ return -ENODEV; } spin_unlock_bh(&np->np_thread_lock); |