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| author | Nicholas Bellinger | 2017-06-03 15:55:50 +0200 |
|---|---|---|
| committer | Nicholas Bellinger | 2017-07-07 07:57:56 +0200 |
| commit | 5465e7d3b99bbaa823ae4f8e538543e7d6cdc530 (patch) | |
| tree | 7ab2a72489d5e29ef9da27181edabc5190713093 /include/target | |
| parent | target: Add support for TMR percpu reference counting (diff) | |
| download | kernel-qcow2-linux-5465e7d3b99bbaa823ae4f8e538543e7d6cdc530.tar.gz kernel-qcow2-linux-5465e7d3b99bbaa823ae4f8e538543e7d6cdc530.tar.xz kernel-qcow2-linux-5465e7d3b99bbaa823ae4f8e538543e7d6cdc530.zip | |
target: Add TARGET_SCF_LOOKUP_LUN_FROM_TAG support for ABORT_TASK
This patch introduces support in target_submit_tmr() for locating a
unpacked_lun from an existing se_cmd->tag during ABORT_TASK.
When TARGET_SCF_LOOKUP_LUN_FROM_TAG is set, target_submit_tmr()
will do the extra lookup via target_lookup_lun_from_tag() and
subsequently invoke transport_lookup_tmr_lun() so a proper
percpu se_lun->lun_ref is taken before workqueue dispatch into
se_device->tmr_wq happens.
Aside from the extra target_lookup_lun_from_tag(), the existing
code-path remains unchanged.
Reviewed-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Reviewed-by: Quinn Tran <quinn.tran@cavium.com>
Cc: Mike Christie <mchristi@redhat.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'include/target')
| -rw-r--r-- | include/target/target_core_base.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 47d9f381209f..f835528e424e 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -188,7 +188,8 @@ enum target_sc_flags_table { TARGET_SCF_BIDI_OP = 0x01, TARGET_SCF_ACK_KREF = 0x02, TARGET_SCF_UNKNOWN_SIZE = 0x04, - TARGET_SCF_USE_CPUID = 0x08, + TARGET_SCF_USE_CPUID = 0x08, + TARGET_SCF_LOOKUP_LUN_FROM_TAG = 0x10, }; /* fabric independent task management function values */ |