linux-kernel - Re: [PATCH 8/9] Introduce functions to restart a process

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Message-ID: <20080913173418.GA8822@ucw.cz>
Date:	Sat, 13 Sep 2008 19:34:19 +0200
From:	Pavel Machek <pavel@...e.cz>
To:	Louis Rilling <Louis.Rilling@...labs.com>
Cc:	Andrey Mirkin <major@...nvz.org>, linux-kernel@...r.kernel.org,
	containers@...ts.linux-foundation.org
Subject: Re: [PATCH 8/9] Introduce functions to restart a process

Hi!

> > @@ -233,6 +234,26 @@ ENTRY(ret_from_fork)
> >  	CFI_ENDPROC
> >  END(ret_from_fork)
> >  
> > +ENTRY(i386_ret_from_resume)
> > +	CFI_STARTPROC
> > +	pushl %eax
> > +	CFI_ADJUST_CFA_OFFSET 4
> > +	call schedule_tail
> > +	GET_THREAD_INFO(%ebp)
> > +	popl %eax
> > +	CFI_ADJUST_CFA_OFFSET -4
> > +	movl (%esp), %eax
> > +	testl %eax, %eax
> > +	jz    1f
> > +	pushl %esp
> > +	call  *%eax
> > +	addl  $4, %esp
> > +1:
> > +	addl  $256, %esp

Can we do something with naming here? resume usually means 'resume
from s2ram'...

> > diff --git a/cpt/rst_process.c b/cpt/rst_process.c
> > new file mode 100644
> > index 0000000..6d47f3c
> > --- /dev/null
> > +++ b/cpt/rst_process.c
> > @@ -0,0 +1,277 @@

....and you are not even consistent. Plus, rst_ will probably be
understood as a reset by most people.

Hmmm... your syscalls get fd. What happens if I pass something like
/proc/self/maps to them?


-- 
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(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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