From e346ab343f4f58c12a96725c7b13df9cc2ad56f6 Mon Sep 17 00:00:00 2001 From: Sagi Grimberg Date: Mon, 19 May 2014 17:44:22 +0300 Subject: [PATCH] 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 Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Nicholas Bellinger --- drivers/infiniband/ulp/isert/ib_isert.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c index a1710465faaf..7676bcb7105a 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); -- 2.11.0