Messages in this thread | | | Date | Wed, 17 Jul 2013 16:06:02 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH 0/5] initmpfs v2: use tmpfs instead of ramfs for rootfs |
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On Tue, 16 Jul 2013 08:31:13 -0700 (PDT) Rob Landley <rob@landley.net> wrote:
> Use tmpfs for rootfs when CONFIG_TMPFS=y and there's no root=. > Specify rootfstype=ramfs to get the old initramfs behavior. > > The previous initramfs code provided a fairly crappy root filesystem: > didn't let you --bind mount directories out of it, reported zero > size/usage so it didn't show up in "df" and couldn't run things like > rpm that query available space before proceeding, would fill up all > available memory and panic the system if you wrote too much to it...
The df problem and the mount --bind thing are ramfs issues, are they not? Can we fix them? If so, that's a less intrusive change, and we also get a fixed ramfs.
> Using tmpfs instead provides a much better root filesystem. > > Changes from last time: use test_and_set_bit() for "once" logic.
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