Bart Van Assche 00d909a107 scsi: target: Make the session shutdown code also wait for commands that are being aborted ... Target drivers must call target_sess_cmd_list_set_waiting() and target_wait_for_sess_cmds() before freeing a session. Since freeing a session is only safe after all commands that are associated with a session have finished, make target_wait_for_sess_cmds() also wait for commands that are being aborted. Instead of setting a flag in each pending command from target_sess_cmd_list_set_waiting() and waiting in target_wait_for_sess_cmds() on a per-command completion, only set a per-session flag in the former function and wait on a per-session completion in the latter function. This change is safe because once a SCSI initiator system has submitted a command a target system is always allowed to execute it to completion. See also commit 0f4a943168 ("target: Fix remote-port TMR ABORT + se_cmd fabric stop"). This patch is based on the following two patches: * Bart Van Assche, target: Simplify session shutdown code, February 19, 2015 (8df5463d7d). * Christoph Hellwig, target: Rework session shutdown code, December 7, 2015 (http://thread.gmane.org/gmane.linux.scsi.target.devel/10695). Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Reviewed-by: Mike Christie <mchristi@redhat.com> Cc: Hannes Reinecke <hare@suse.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>		2018-07-02 16:44:31 -04:00
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iscsi	scsi: target: Convert target drivers to use sbitmap	2018-06-19 22:02:25 -04:00
target_core_backend.h	scsi: target: remove target_find_device	2018-06-26 12:27:06 -04:00
target_core_base.h	scsi: target: Make the session shutdown code also wait for commands that are being aborted	2018-07-02 16:44:31 -04:00
target_core_fabric.h	scsi: target: Introduce transport_init_session()	2018-07-02 16:44:31 -04:00