This patch avoids that the following kernel crash can occur with later patches in this patch series: general protection fault: 0000 [#1] SMP CPU: 0 PID: 6 Comm: kworker/u8:0 Not tainted 4.3.0-rc1-debug+ #1 Workqueue: tmr-fileio target_tmr_work [target_core_mod] Call Trace: [<ffffffff810a6915>] lock_acquire+0x65/0x90 [<ffffffff815e740b>] _raw_spin_lock_irqsave+0x4b/0x60 [<ffffffffa03bc7ca>] target_release_cmd_kref+0x2a/0xa0 [target_core_mod] [<ffffffffa03bd418>] target_put_sess_cmd+0x28/0x50 [target_core_mod] [<ffffffffa03bad50>] core_tmr_lun_reset+0x390/0x640 [target_core_mod] [<ffffffffa03bce50>] target_tmr_work+0x80/0xd0 [target_core_mod] [<ffffffff81070e6d>] process_one_work+0x19d/0x430 [<ffffffff8107120f>] worker_thread+0x10f/0x460 [<ffffffff810772ba>] kthread+0xea/0x100 [<ffffffff815e7a2f>] ret_from_fork+0x3f/0x70 Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxxxxxx> Cc: Andy Grover <agrover@xxxxxxxxxx> Cc: Christoph Hellwig <hch@xxxxxx> Cc: Hannes Reinecke <hare@xxxxxxx> Cc: Sagi Grimberg <sagig@xxxxxxxxxxxx>
Looks good, Reviewed-by: Sagi Grimberg <sagig@xxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe target-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
