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target: remove the execute list

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Since "target: Drop se_device TCQ queue_depth usage from I/O path" we always
submit all commands (or back then, tasks) from __transport_execute_tasks.

That means the the execute list has lots its purpose, as we can simply
submit the commands that are restarted in transport_complete_task_attr
directly while we walk the list.  In fact doing so also solves a race
in the way it currently walks to delayed_cmd_list as well.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Christoph Hellwig
2012-05-20 14:34:44 -04:00
committed by Nicholas Bellinger
parent a3785c8740
commit 5f41a31d0a
4 changed files with 98 additions and 239 deletions
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include/target/target_core_base.h
-3
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@@ -572,7 +572,6 @@ struct se_cmd {
struct scatterlist *t_bidi_data_sg;
unsigned int t_bidi_data_nents;
struct list_head execute_list;
struct list_head state_list;
bool state_active;
@@ -777,7 +776,6 @@ struct se_device {
/* Active commands on this virtual SE device */
atomic_t simple_cmds;
atomic_t dev_ordered_id;
atomic_t execute_tasks;
atomic_t dev_ordered_sync;
atomic_t dev_qf_count;
struct se_obj dev_obj;
@@ -803,7 +801,6 @@ struct se_device {
struct task_struct *process_thread;
struct work_struct qf_work_queue;
struct list_head delayed_cmd_list;
struct list_head execute_list;
struct list_head state_list;
struct list_head qf_cmd_list;
/* Pointer to associated SE HBA */