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authorAndy Grover <agrover@redhat.com>2011-05-02 17:12:10 -0700
committerNicholas Bellinger <nab@linux-iscsi.org>2011-07-22 09:37:44 +0000
commita1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6 (patch)
tree8cbfd54b4829fd5f0ed206e15c81c1e626e7701d /drivers/target/target_core_tmr.c
parentdd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479 (diff)
target: Updates from AGrover and HCH (round 3)
This patch contains a squashed version of third round series cleanups, improvements ,and simplfications from Andy and Christoph ahead of the heavy lifting between round 3 -> 4 for the target core SGL conversion. This include cleanups to the main target I/O path and other miscellaneous updates. target: Replace custom sg<->buf functions with lib funcs target: Simplify sector limiting code target: get_cdb should never return NULL target: Simplify transport_memcpy_se_mem_read_contig target: Use assignment rather than increment for t_task_cdbs target: Don't pass dma_size to generic_get_mem target: Pass sg with type scatterlist in transport_map_sg_to_mem target: Move task_sg_num next to task_sg in struct se_task target: inline struct se_transport_task into struct se_cmd target: Change name & semantics of transport_get_sectors() target: Remove unused members of se_cmd target: Rename se_cmd.t_task_cdbs to t_task_list_num target: Fix some spelling target: Remove unused var from transport_generic_do_tmr target: map_sg_to_mem: return sg_count in return value target/pscsi: Use min_t for sector limits target/pscsi: Unused param for pscsi_get_bio() target: Rename get_cdb_count to allocate_tasks target: Make transport_generic_new_cmd() available for iscsi-target target: Remove fabric callback to allocate iovecs target: Fix transport_generic_new_cmd WRITE comment (hch: Use __GFP_ZERO usage for alloc_pages() usage) Signed-off-by: Andy Grover <agrover@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/target_core_tmr.c')
-rw-r--r--drivers/target/target_core_tmr.c56
1 files changed, 28 insertions, 28 deletions
diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c
index e1f99f75ac35..6667e39a35a1 100644
--- a/drivers/target/target_core_tmr.c
+++ b/drivers/target/target_core_tmr.c
@@ -178,14 +178,14 @@ int core_tmr_lun_reset(
continue;
spin_unlock(&dev->se_tmr_lock);
- spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
- if (!(atomic_read(&cmd->t_task.t_transport_active))) {
- spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_state_lock, flags);
+ if (!(atomic_read(&cmd->t_transport_active))) {
+ spin_unlock_irqrestore(&cmd->t_state_lock, flags);
spin_lock(&dev->se_tmr_lock);
continue;
}
if (cmd->t_state == TRANSPORT_ISTATE_PROCESSING) {
- spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_state_lock, flags);
spin_lock(&dev->se_tmr_lock);
continue;
}
@@ -193,7 +193,7 @@ int core_tmr_lun_reset(
" Response: 0x%02x, t_state: %d\n",
(preempt_and_abort_list) ? "Preempt" : "", tmr_p,
tmr_p->function, tmr_p->response, cmd->t_state);
- spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_state_lock, flags);
transport_cmd_finish_abort_tmr(cmd);
spin_lock(&dev->se_tmr_lock);
@@ -247,38 +247,38 @@ int core_tmr_lun_reset(
atomic_set(&task->task_state_active, 0);
spin_unlock_irqrestore(&dev->execute_task_lock, flags);
- spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_state_lock, flags);
DEBUG_LR("LUN_RESET: %s cmd: %p task: %p"
" ITT/CmdSN: 0x%08x/0x%08x, i_state: %d, t_state/"
"def_t_state: %d/%d cdb: 0x%02x\n",
(preempt_and_abort_list) ? "Preempt" : "", cmd, task,
cmd->se_tfo->get_task_tag(cmd), 0,
cmd->se_tfo->get_cmd_state(cmd), cmd->t_state,
- cmd->deferred_t_state, cmd->t_task.t_task_cdb[0]);
+ cmd->deferred_t_state, cmd->t_task_cdb[0]);
DEBUG_LR("LUN_RESET: ITT[0x%08x] - pr_res_key: 0x%016Lx"
" t_task_cdbs: %d t_task_cdbs_left: %d"
" t_task_cdbs_sent: %d -- t_transport_active: %d"
" t_transport_stop: %d t_transport_sent: %d\n",
cmd->se_tfo->get_task_tag(cmd), cmd->pr_res_key,
- cmd->t_task.t_task_cdbs,
- atomic_read(&cmd->t_task.t_task_cdbs_left),
- atomic_read(&cmd->t_task.t_task_cdbs_sent),
- atomic_read(&cmd->t_task.t_transport_active),
- atomic_read(&cmd->t_task.t_transport_stop),
- atomic_read(&cmd->t_task.t_transport_sent));
+ cmd->t_task_list_num,
+ atomic_read(&cmd->t_task_cdbs_left),
+ atomic_read(&cmd->t_task_cdbs_sent),
+ atomic_read(&cmd->t_transport_active),
+ atomic_read(&cmd->t_transport_stop),
+ atomic_read(&cmd->t_transport_sent));
if (atomic_read(&task->task_active)) {
atomic_set(&task->task_stop, 1);
spin_unlock_irqrestore(
- &cmd->t_task.t_state_lock, flags);
+ &cmd->t_state_lock, flags);
DEBUG_LR("LUN_RESET: Waiting for task: %p to shutdown"
" for dev: %p\n", task, dev);
wait_for_completion(&task->task_stop_comp);
DEBUG_LR("LUN_RESET Completed task: %p shutdown for"
" dev: %p\n", task, dev);
- spin_lock_irqsave(&cmd->t_task.t_state_lock, flags);
- atomic_dec(&cmd->t_task.t_task_cdbs_left);
+ spin_lock_irqsave(&cmd->t_state_lock, flags);
+ atomic_dec(&cmd->t_task_cdbs_left);
atomic_set(&task->task_active, 0);
atomic_set(&task->task_stop, 0);
@@ -288,24 +288,24 @@ int core_tmr_lun_reset(
}
__transport_stop_task_timer(task, &flags);
- if (!(atomic_dec_and_test(&cmd->t_task.t_task_cdbs_ex_left))) {
+ if (!(atomic_dec_and_test(&cmd->t_task_cdbs_ex_left))) {
spin_unlock_irqrestore(
- &cmd->t_task.t_state_lock, flags);
+ &cmd->t_state_lock, flags);
DEBUG_LR("LUN_RESET: Skipping task: %p, dev: %p for"
" t_task_cdbs_ex_left: %d\n", task, dev,
- atomic_read(&cmd->t_task.t_task_cdbs_ex_left));
+ atomic_read(&cmd->t_task_cdbs_ex_left));
spin_lock_irqsave(&dev->execute_task_lock, flags);
continue;
}
- fe_count = atomic_read(&cmd->t_task.t_fe_count);
+ fe_count = atomic_read(&cmd->t_fe_count);
- if (atomic_read(&cmd->t_task.t_transport_active)) {
+ if (atomic_read(&cmd->t_transport_active)) {
DEBUG_LR("LUN_RESET: got t_transport_active = 1 for"
" task: %p, t_fe_count: %d dev: %p\n", task,
fe_count, dev);
- atomic_set(&cmd->t_task.t_transport_aborted, 1);
- spin_unlock_irqrestore(&cmd->t_task.t_state_lock,
+ atomic_set(&cmd->t_transport_aborted, 1);
+ spin_unlock_irqrestore(&cmd->t_state_lock,
flags);
core_tmr_handle_tas_abort(tmr_nacl, cmd, tas, fe_count);
@@ -314,8 +314,8 @@ int core_tmr_lun_reset(
}
DEBUG_LR("LUN_RESET: Got t_transport_active = 0 for task: %p,"
" t_fe_count: %d dev: %p\n", task, fe_count, dev);
- atomic_set(&cmd->t_task.t_transport_aborted, 1);
- spin_unlock_irqrestore(&cmd->t_task.t_state_lock, flags);
+ atomic_set(&cmd->t_transport_aborted, 1);
+ spin_unlock_irqrestore(&cmd->t_state_lock, flags);
core_tmr_handle_tas_abort(tmr_nacl, cmd, tas, fe_count);
spin_lock_irqsave(&dev->execute_task_lock, flags);
@@ -345,7 +345,7 @@ int core_tmr_lun_reset(
if (prout_cmd == cmd)
continue;
- atomic_dec(&cmd->t_task.t_transport_queue_active);
+ atomic_dec(&cmd->t_transport_queue_active);
atomic_dec(&qobj->queue_cnt);
list_del(&cmd->se_queue_node);
spin_unlock_irqrestore(&qobj->cmd_queue_lock, flags);
@@ -353,7 +353,7 @@ int core_tmr_lun_reset(
DEBUG_LR("LUN_RESET: %s from Device Queue: cmd: %p t_state:"
" %d t_fe_count: %d\n", (preempt_and_abort_list) ?
"Preempt" : "", cmd, cmd->t_state,
- atomic_read(&cmd->t_task.t_fe_count));
+ atomic_read(&cmd->t_fe_count));
/*
* Signal that the command has failed via cmd->se_cmd_flags,
* and call TFO->new_cmd_failure() to wakeup any fabric
@@ -365,7 +365,7 @@ int core_tmr_lun_reset(
transport_new_cmd_failure(cmd);
core_tmr_handle_tas_abort(tmr_nacl, cmd, tas,
- atomic_read(&cmd->t_task.t_fe_count));
+ atomic_read(&cmd->t_fe_count));
spin_lock_irqsave(&qobj->cmd_queue_lock, flags);
}
spin_unlock_irqrestore(&qobj->cmd_queue_lock, flags);