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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2011-02-24 16:58:20 -0800 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2011-02-28 11:23:32 -0600 |
| commit | 52208ae3fc60cbcb214c10fb8b82304199e2cc3a (patch) | |
| tree | d7c7e938453b257ce49197cb91f64fed1860b254 /include/target/target_core_transport.h | |
| parent | 493f3358cb289ccf716c5a14fa5bb52ab75943e5 (diff) | |
| download | lwn-52208ae3fc60cbcb214c10fb8b82304199e2cc3a.tar.gz lwn-52208ae3fc60cbcb214c10fb8b82304199e2cc3a.zip | |
[SCSI] target: Fix t_transport_aborted handling in LUN_RESET + active I/O shutdown
This patch addresses two outstanding bugs related to
T_TASK(cmd)->t_transport_aborted handling during TMR LUN_RESET and
active I/O shutdown.
This first involves adding two explict t_transport_aborted=1
assignments in core_tmr_lun_reset() in order to signal the task has
been aborted, and updating transport_generic_wait_for_tasks() to skip
sleeping when t_transport_aborted=1 has been set. This fixes an issue
where transport_generic_wait_for_tasks() would end up sleeping
indefinately when called from fabric module context while TMR
LUN_RESET was happening with long outstanding backend struct se_task
not yet being completed.
The second adds a missing call to
transport_remove_task_from_execute_queue() when
task->task_execute_queue=1 is set in order to fix an OOPs when
task->t_execute_list has not been dropped. It also fixes the same
case in transport_processing_shutdown() to prevent the issue from
happening during active I/O struct se_device shutdown.
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'include/target/target_core_transport.h')
| -rw-r--r-- | include/target/target_core_transport.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/target/target_core_transport.h b/include/target/target_core_transport.h index 246940511579..2e8ec51f0615 100644 --- a/include/target/target_core_transport.h +++ b/include/target/target_core_transport.h @@ -135,6 +135,8 @@ extern void transport_complete_task(struct se_task *, int); extern void transport_add_task_to_execute_queue(struct se_task *, struct se_task *, struct se_device *); +extern void transport_remove_task_from_execute_queue(struct se_task *, + struct se_device *); unsigned char *transport_dump_cmd_direction(struct se_cmd *); extern void transport_dump_dev_state(struct se_device *, char *, int *); extern void transport_dump_dev_info(struct se_device *, struct se_lun *, |