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authorJames Smart <James.Smart@Emulex.Com>2008-06-14 22:52:53 -0400
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-07-12 08:22:28 -0500
commit5e9d9b8276980fc5dfa88ce34f6ec88ce3026232 (patch)
tree30b495edab629068f929a32f88a66ad705687f34 /drivers/scsi/lpfc/lpfc_ct.c
parent0d2b6b83030d6a88cbf7db57f84f2daf0e0b251b (diff)
[SCSI] lpfc 8.2.7 : Rework the worker thread
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>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_ct.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_ct.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c
index 153afae567b5..5442ce33615a 100644
--- a/drivers/scsi/lpfc/lpfc_ct.c
+++ b/drivers/scsi/lpfc/lpfc_ct.c
@@ -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