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Date: Sun, 17 May 2009 00:50:55 -0700
Message-ID: <a24804730905170050m16bfb81cj6c9ee4c99ac9d08f@mail.gmail.com>
Subject: Re: [RFC] mod_timer() helper functions?
From: Chris Peterson <cpeterso@cpeterso.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, tglx@linutronix.de
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>> Reviewing the kernel's nearly one-thousand calls to mod_timer(), there
>> are three basic patterns:
>>
>>  * multi-second timeouts
>>  * millisecond timeouts
>>  * +1 jiffie ASAP events
>>

Is there a functional difference between the following "expire this
timer ASAP" statements?

mod_timer(timer, jiffies + 1); /* 48 uses */
mod_timer(timer, jiffies); /* 44 uses */
mod_timer(timer, jiffies - 1); /* 6 uses */


chris