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Commit e346ab34 authored by Sagi Grimberg's avatar Sagi Grimberg Committed by Nicholas Bellinger
Browse files

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: default avatarSagi Grimberg <sagig@mellanox.com>
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
parent 1e1110c4

drivers/infiniband/ulp/isert/ib_isert.c

+7 −2
Original line number Diff line number Diff line
@@ -3154,9 +3154,14 @@ isert_accept_np(struct iscsi_np *np, struct iscsi_conn *conn) 
		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);