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scst: Introduce scst_find_free_slot()

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This patch fixes some occurrences of the following 3.3 checkpatch warning:
WARNING: Too many leading tabs - consider code refactoring

Signed-off-by: Bart Van Assche <bvanassche@acm.org>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@4173 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Vladislav Bolkhovitin
2012-03-27 01:49:10 +00:00
parent 49c56244a1
commit 8517d9da8a
1 changed files with 26 additions and 21 deletions
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47
scst/src/scst_targ.c
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@@ -3575,6 +3575,30 @@ out_error:
goto out;
}
static void scst_find_free_slot(struct scst_order_data *order_data)
{
int i = 0;
/*
* Commands can finish in any order, so we don't know which slot is
* empty.
*/
while (1) {
order_data->cur_sn_slot++;
if (order_data->cur_sn_slot ==
order_data->sn_slots + ARRAY_SIZE(order_data->sn_slots))
order_data->cur_sn_slot = order_data->sn_slots;
if (atomic_read(order_data->cur_sn_slot) == 0)
break;
i++;
sBUG_ON(i == ARRAY_SIZE(order_data->sn_slots));
}
TRACE_SN("New cur SN slot %zd",
order_data->cur_sn_slot - order_data->sn_slots);
}
/**
* scst_tgt_cmd_done() - the command's processing done
* @cmd: SCST command
@@ -3736,27 +3760,8 @@ ordered:
spin_lock_irqsave(&order_data->sn_lock, flags);
if (order_data->num_free_sn_slots >= 0) {
order_data->num_free_sn_slots--;
if (order_data->num_free_sn_slots >= 0) {
int i = 0;
/* Commands can finish in any order, so
* we don't know which slot is empty.
*/
while (1) {
order_data->cur_sn_slot++;
if (order_data->cur_sn_slot ==
order_data->sn_slots + ARRAY_SIZE(order_data->sn_slots))
order_data->cur_sn_slot = order_data->sn_slots;
if (atomic_read(order_data->cur_sn_slot) == 0)
break;
i++;
sBUG_ON(i == ARRAY_SIZE(order_data->sn_slots));
}
TRACE_SN("New cur SN slot %zd",
order_data->cur_sn_slot -
order_data->sn_slots);
}
if (order_data->num_free_sn_slots >= 0)
scst_find_free_slot(order_data);
}
spin_unlock_irqrestore(&order_data->sn_lock, flags);
}