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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2012-02-13 02:38:14 -0800 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2012-02-25 14:37:49 -0800 |
| commit | 3d28934aaae5e924afedf0f5cb42e1316514da6b (patch) | |
| tree | 6a11e13b7da8187339f262c14726107ccb32eb1b /drivers/target/target_core_internal.h | |
| parent | ffc32d5259d107a3aa1b822e22f20b69cb9ec0a5 (diff) | |
| download | linux-3d28934aaae5e924afedf0f5cb42e1316514da6b.tar.gz linux-3d28934aaae5e924afedf0f5cb42e1316514da6b.tar.bz2 linux-3d28934aaae5e924afedf0f5cb42e1316514da6b.zip | |
target: Add TMR_ABORT_TASK task management support
This patch adds initial support for TMR_ABORT_TASK ops for se_cmd
descriptors using se_sess->sess_cmd_list and se_cmd->cmd_kref counting.
It will perform an explict abort for all outstanding se_cmd ops based
upon tmr->ref_task_tag that have not been set CMD_T_COMPLETE.
It will cancel se_cmd->work and wait for backing I/O to complete before
attempting to send SAM_STAT_TASK_ABORTED and perform
target_put_sess_cmd() to release the referenced descriptor.
It also adds a CMD_T_ABORTED check into transport_complete_task() to
catch the completion from backend I/O that has been aborted, and
updates transport_wait_for_tasks() to allow CMD_T_ABORTED usage with
core_tmr_abort_task() context.
Reported-by: Roland Dreier <roland@purestorage.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/target_core_internal.h')
| -rw-r--r-- | drivers/target/target_core_internal.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/target/target_core_internal.h b/drivers/target/target_core_internal.h index 45001364788a..b026dedb8184 100644 --- a/drivers/target/target_core_internal.h +++ b/drivers/target/target_core_internal.h @@ -75,6 +75,8 @@ struct se_hba *core_alloc_hba(const char *, u32, u32); int core_delete_hba(struct se_hba *); /* target_core_tmr.c */ +void core_tmr_abort_task(struct se_device *, struct se_tmr_req *, + struct se_session *); int core_tmr_lun_reset(struct se_device *, struct se_tmr_req *, struct list_head *, struct se_cmd *); |