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[SCSI] lpfc 8.2.7 : Rework the worker thread

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Rework of the worker thread to make it more efficient.
Make a finer-grain notfication of pending work so less time is
spent checking conditions. Also made other general cleanups.

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
James Smart
2008-06-14 22:52:53 -04:00
committed by James Bottomley
parent 0d2b6b8303
commit 5e9d9b8276
7 changed files with 97 additions and 140 deletions
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16
drivers/scsi/lpfc/lpfc_ct.c
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@@ -1679,20 +1679,18 @@ lpfc_fdmi_tmo(unsigned long ptr)
{
struct lpfc_vport *vport = (struct lpfc_vport *)ptr;
struct lpfc_hba *phba = vport->phba;
uint32_t tmo_posted;
unsigned long iflag;
spin_lock_irqsave(&vport->work_port_lock, iflag);
if (!(vport->work_port_events & WORKER_FDMI_TMO)) {
tmo_posted = vport->work_port_events & WORKER_FDMI_TMO;
if (!tmo_posted)
vport->work_port_events |= WORKER_FDMI_TMO;
spin_unlock_irqrestore(&vport->work_port_lock, iflag);
spin_unlock_irqrestore(&vport->work_port_lock, iflag);
spin_lock_irqsave(&phba->hbalock, iflag);
if (phba->work_wait)
lpfc_worker_wake_up(phba);
spin_unlock_irqrestore(&phba->hbalock, iflag);
}
else
spin_unlock_irqrestore(&vport->work_port_lock, iflag);
if (!tmo_posted)
lpfc_worker_wake_up(phba);
return;
}
void