linux-kernel - do

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Message-ID: <DDFD17CC94A9BD49A82147DDF7D545C501DCD047@exchange.ZeugmaSystems.local>
Date:	Thu, 30 Jul 2009 18:19:53 -0700
From:	"Anirban Sinha" <ASinha@...gmasystems.com>
To:	<linux-kernel@...r.kernel.org>
Subject: do_exit

Hi all:

I have a small question regarding the function do_exit(). At the very
beginning of the function, it takes a reference (tsk) to "current" and
then it passes this reference to other functions. I am wondering where
there is any reason for not passing "current" directly in this case.
Does current gets clobbered/not trustable in this case? If we could pass
current directly, lot of the other functions could be cleaned up and
made to pass one less parameter.

Just curious.

Thanks

Ani

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