From: Nishanth Aravamudan <nacc@us.ibm.com>
To: kernel-janitors@vger.kernel.org
Subject: [Kernel-janitors] [PATCH] base/dmapool: replace schedule_timeout()
Date: Wed, 15 Sep 2004 18:32:00 +0000 [thread overview]
Message-ID: <20040915183200.GH4363@us.ibm.com> (raw)
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Any comments would be appreciated.
Description: msleep_interruptible() is used instead of schedule_timeout()
to guarantee the task delays as expected. To achieve this, the timeout
variable is converted from jiffies to msecs. Also, set_current_state()
is used instead of direct assignment.
--- 2.6.9-rc2-vanilla/drivers/base/dmapool.c 2004-09-13 17:15:46.000000000 -0700
+++ 2.6.9-rc2/drivers/base/dmapool.c 2004-09-14 11:37:07.000000000 -0700
@@ -34,7 +34,7 @@ struct dma_page { /* cacheable header fo
unsigned long bitmap [0];
};
-#define POOL_TIMEOUT_JIFFIES ((100 /* msec */ * HZ) / 1000)
+#define POOL_TIMEOUT_MSECS (100) /* msec */
#define POOL_POISON_FREED 0xa7 /* !inuse */
#define POOL_POISON_ALLOCATED 0xa9 /* !initted */
@@ -293,11 +293,11 @@ restart:
if (mem_flags & __GFP_WAIT) {
DECLARE_WAITQUEUE (wait, current);
- current->state = TASK_INTERRUPTIBLE;
+ set_current_state (TASK_INTERRUPTIBLE);
add_wait_queue (&pool->waitq, &wait);
spin_unlock_irqrestore (&pool->lock, flags);
- schedule_timeout (POOL_TIMEOUT_JIFFIES);
+ msleep_interruptible(POOL_TIMEOUT_MSECS);
remove_wait_queue (&pool->waitq, &wait);
goto restart;
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next reply other threads:[~2004-09-15 18:32 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-15 18:32 Nishanth Aravamudan [this message]
2004-09-21 21:14 ` [Kernel-janitors] [PATCH] base/dmapool: replace maximilian attems
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