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target: remove the t_task_cdbs_ex_left field in struct se_cmd

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Now that tasks are gone we are guaranteed to only get a single completion
per command, and thus don't need this counter.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Christoph Hellwig 2012-04-24 00:25:08 -04:00 committed by Nicholas Bellinger
parent 226b6faf2e
commit d43d6aea84
3 changed files with 1 additions and 14 deletions
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7
drivers/target/target_core_tmr.c
View file

@ -333,13 +333,6 @@ static void core_tmr_drain_state_list(
spin_lock_irqsave(&cmd->t_state_lock, flags);
target_stop_cmd(cmd, &flags);
if (!atomic_dec_and_test(&cmd->t_task_cdbs_ex_left)) {
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
pr_debug("LUN_RESET: Skipping cmd: %p, dev: %p for"
" t_task_cdbs_ex_left: %d\n", cmd, dev,
atomic_read(&cmd->t_task_cdbs_ex_left));
continue;
}
fe_count = atomic_read(&cmd->t_fe_count);
if (!(cmd->transport_state & CMD_T_ACTIVE)) {

7
drivers/target/target_core_transport.c
View file

@ -457,7 +457,6 @@ static void target_remove_from_state_list(struct se_cmd *cmd)
spin_lock_irqsave(&dev->execute_task_lock, flags);
if (cmd->state_active) {
list_del(&cmd->state_list);
atomic_dec(&cmd->t_task_cdbs_ex_left);
cmd->state_active = false;
}
spin_unlock_irqrestore(&dev->execute_task_lock, flags);
@ -1771,9 +1770,7 @@ void transport_generic_request_failure(struct se_cmd *cmd)
pr_debug("-----[ i_state: %d t_state: %d scsi_sense_reason: %d\n",
cmd->se_tfo->get_cmd_state(cmd),
cmd->t_state, cmd->scsi_sense_reason);
pr_debug("-----[ t_task_cdbs_ex_left: %d --"
" CMD_T_ACTIVE: %d CMD_T_STOP: %d CMD_T_SENT: %d\n",
atomic_read(&cmd->t_task_cdbs_ex_left),
pr_debug("-----[ CMD_T_ACTIVE: %d CMD_T_STOP: %d CMD_T_SENT: %d\n",
(cmd->transport_state & CMD_T_ACTIVE) != 0,
(cmd->transport_state & CMD_T_STOP) != 0,
(cmd->transport_state & CMD_T_SENT) != 0);
@ -3503,8 +3500,6 @@ int transport_generic_new_cmd(struct se_cmd *cmd)
atomic_inc(&cmd->t_fe_count);
atomic_inc(&cmd->t_se_count);
atomic_set(&cmd->t_task_cdbs_ex_left, 1);
/*
* For WRITEs, let the fabric know its buffer is ready.
*

1
include/target/target_core_base.h
View file

@ -549,7 +549,6 @@ struct se_cmd {
unsigned long long t_task_lba;
atomic_t t_fe_count;
atomic_t t_se_count;
atomic_t t_task_cdbs_ex_left;
unsigned int transport_state;
#define CMD_T_ABORTED (1 << 0)
#define CMD_T_ACTIVE (1 << 1)