diff options
| author | Roland Dreier <roland@purestorage.com> | 2012-03-30 11:29:15 -0700 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2012-04-14 17:40:32 -0700 |
| commit | 957525a2424aad367d6e0efb64e440b2b37fa5cd (patch) | |
| tree | dc56eaa7a6e60ad674059d110e6d4145adb55efd /include | |
| parent | 6f9e7f01b69bc2d6021e4ab827e1fd78c82cbc52 (diff) | |
| download | op-kernel-dev-957525a2424aad367d6e0efb64e440b2b37fa5cd.zip op-kernel-dev-957525a2424aad367d6e0efb64e440b2b37fa5cd.tar.gz | |
target: Remove transport_do_task_sg_chain() and associated detritus
Now that all fabrics are converted over to using se_cmd->t_data_sg
directly, we can drop the task sg chaining support. With the modern
memory allocation in target core, task sg chaining is needless
overhead -- we would split up the main cmd sglist into pieces, and
then splice those pieces back together instead of just using the
original list directly.
Signed-off-by: Roland Dreier <roland@purestorage.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/target/target_core_base.h | 2 | ||||
| -rw-r--r-- | include/target/target_core_fabric.h | 7 |
2 files changed, 0 insertions, 9 deletions
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 6a02c99d..8ec4e82 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -572,7 +572,6 @@ struct se_cmd { unsigned char *t_task_cdb; unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE]; unsigned long long t_task_lba; - u32 t_tasks_sg_chained_no; atomic_t t_fe_count; atomic_t t_se_count; atomic_t t_task_cdbs_left; @@ -593,7 +592,6 @@ struct se_cmd { struct completion t_transport_stop_comp; struct completion transport_lun_fe_stop_comp; struct completion transport_lun_stop_comp; - struct scatterlist *t_tasks_sg_chained; struct work_struct work; diff --git a/include/target/target_core_fabric.h b/include/target/target_core_fabric.h index 10c6908..83734cc 100644 --- a/include/target/target_core_fabric.h +++ b/include/target/target_core_fabric.h @@ -3,12 +3,6 @@ struct target_core_fabric_ops { struct configfs_subsystem *tf_subsys; - /* - * Optional to signal struct se_task->task_sg[] padding entries - * for scatterlist chaining using transport_do_task_sg_link(), - * disabled by default - */ - bool task_sg_chaining; char *(*get_fabric_name)(void); u8 (*get_fabric_proto_ident)(struct se_portal_group *); char *(*tpg_get_wwn)(struct se_portal_group *); @@ -124,7 +118,6 @@ int transport_generic_handle_cdb_map(struct se_cmd *); int transport_generic_handle_data(struct se_cmd *); int transport_generic_map_mem_to_cmd(struct se_cmd *cmd, struct scatterlist *, u32, struct scatterlist *, u32); -void transport_do_task_sg_chain(struct se_cmd *); int transport_generic_new_cmd(struct se_cmd *); void transport_generic_process_write(struct se_cmd *); |
