Cc: Andi Kleen <andi@...>, Pallipadi, Venkatesh <venkatesh.pallipadi@...>, Dave Jones <davej@...>, Alan Stern <stern@...>, LKML <linux-kernel@...>, Adam Belay <abelay@...>, Lee Revell <rlrevell@...>, <linux-pm@...>, Pavel Machek <pavel@...>
On Wed, Mar 05, 2008 at 07:04:54AM +0100, Pierre Ossman wrote:
Start: You discovered at some point where you currently have code a variable
is not updated yet.
Fact: You have some new code that runs before that point
Information: The variable is updated later eventually in the idle exit path.
Fact II: You require the variable to be updated in your new code
Possible solutions:
(1) you move your new code in a point of the idle exit path after the variable
is updated
(2) you move the code that updates the variable earlier before your code
Solution: I described the first variant which is likely easier.
How: I told you where it is updated, so that shouldn't be too difficult.
Action: Implement solution (1) or (2)
Action: Test if it works
Check: If test succeeded exit
Otherwise: Restart at Start
-Andi
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