From: viro@parcelfarce.linux.theplanet.co.uk
To: Chris Friesen <cfriesen@nortelnetworks.com>
Cc: "Kevin P. Fleming" <kpfleming@backtobasicsmgmt.com>,
Andrey Borzenkov <arvidjaar@mail.ru>,
Jeff Garzik <jgarzik@pobox.com>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: Is initramfs freed after kernel is booted?
Date: Mon, 17 Nov 2003 17:25:57 +0000 [thread overview]
Message-ID: <20031117172557.GX24159@parcelfarce.linux.theplanet.co.uk> (raw)
In-Reply-To: <3FB8F218.30601@nortelnetworks.com>
On Mon, Nov 17, 2003 at 11:06:48AM -0500, Chris Friesen wrote:
> Kevin P. Fleming wrote:
>
> >There is no pivot_root happening here; the kernel creates a ramfs and
> >mounts it on / (as rootfs), then unpacks the initramfs cpio archive into
> >it. After doing a few more steps, it overmounts the real root onto /,
> >making the rootfs filesystem invisible. It is not freed in the current
> >kernels.
>
> Anyone know why it overmounts rather than pivots?
Because amount of extra code you lose that way takes more memory than
empty roots takes.
Remove whatever files you don't need and be done with that.
next prev parent reply other threads:[~2003-11-17 17:26 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-16 17:09 Andrey Borzenkov
2003-11-16 19:51 ` Jeff Garzik
2003-11-17 14:39 ` Chris Friesen
2003-11-17 15:36 ` "Andrey Borzenkov"
2003-11-17 15:39 ` Chris Friesen
2003-11-17 15:46 ` Jeff Garzik
2003-11-17 18:32 ` Bryan O'Sullivan
2003-11-17 15:47 ` Kevin P. Fleming
2003-11-17 16:06 ` Chris Friesen
2003-11-17 16:25 ` Erik Mouw
2003-11-17 17:25 ` viro [this message]
2003-11-17 17:47 ` viro
2003-11-17 17:50 ` Chris Friesen
2003-11-17 18:03 ` viro
2003-11-17 18:33 ` Andrey Borzenkov
2003-11-17 19:15 ` viro
2003-11-19 14:19 ` Olaf Hering
2003-11-19 15:07 ` Hannes Reinecke
2003-11-25 18:26 ` Manuel Estrada Sainz
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