From: "Manuel Schölling" <manuel.schoelling@gmx.de>
To: james.smart@emulex.com
Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel-janitors@vger.kernel.org,
"Manuel Schölling" <manuel.schoelling@gmx.de>
Subject: [PATCH] lpfc: Use time_after()
Date: Mon, 19 May 2014 21:09:22 +0000 [thread overview]
Message-ID: <1400533762-10338-1-git-send-email-manuel.schoelling@gmx.de> (raw)
To be future-proof and for better readability the time comparisons are modified
to use time_after() instead of plain, error-prone math.
Signed-off-by: Manuel Schölling <manuel.schoelling@gmx.de>
---
drivers/scsi/lpfc/lpfc_scsi.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 462453e..fb5351a 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -380,12 +380,14 @@ lpfc_rampdown_queue_depth(struct lpfc_hba *phba)
{
unsigned long flags;
uint32_t evt_posted;
+ unsigned long expires;
spin_lock_irqsave(&phba->hbalock, flags);
atomic_inc(&phba->num_rsrc_err);
phba->last_rsrc_error_time = jiffies;
- if ((phba->last_ramp_down_time + QUEUE_RAMP_DOWN_INTERVAL) > jiffies) {
+ expires = phba->last_ramp_down_time + QUEUE_RAMP_DOWN_INTERVAL;
+ if (time_after(expires, jiffies)) {
spin_unlock_irqrestore(&phba->hbalock, flags);
return;
}
--
1.7.10.4
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reply other threads:[~2014-05-19 21:09 UTC|newest]
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