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target: Add TFO->abort_task for aborted task resources release
Now that TASK_ABORTED status is not generated for all cases by TMR ABORT_TASK + LUN_RESET, a new TFO->abort_task() caller is necessary in order to give fabric drivers a chance to unmap hardware / software resources before the se_cmd descriptor is released via the normal TFO->release_cmd() codepath. This patch adds TFO->aborted_task() in core_tmr_abort_task() in place of the original transport_send_task_abort(), and also updates all fabric drivers to implement this caller. The fabric drivers that include changes to perform cleanup via ->aborted_task() are: - iscsi-target - iser-target - srpt - tcm_qla2xxx The fabric drivers that currently set ->aborted_task() to NOPs are: - loopback - tcm_fc - usb-gadget - sbp-target - vhost-scsi For the latter five, there appears to be no additional cleanup required before invoking TFO->release_cmd() to release the se_cmd descriptor. v2 changes: - Move ->aborted_task() call into transport_cmd_finish_abort (Alex) Cc: Alex Leung <[email protected]> Cc: Mark Rustad <[email protected]> Cc: Roland Dreier <[email protected]> Cc: Vu Pham <[email protected]> Cc: Chris Boot <[email protected]> Cc: Sebastian Andrzej Siewior <[email protected]> Cc: Michael S. Tsirkin <[email protected]> Cc: Giridhar Malavali <[email protected]> Cc: Saurav Kashyap <[email protected]> Cc: Quinn Tran <[email protected]> Cc: Sagi Grimberg <[email protected]> Cc: Or Gerlitz <[email protected]> Signed-off-by: Nicholas Bellinger <[email protected]>
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