[linux-lvm] Reiserfs, 2.4.7, snapshots w/ 0.9
José Luis Domingo López
jdomingo at internautas.org
Wed Jul 25 23:57:47 UTC 2001
On Wednesday, 25 July 2001, at 21:44:51 +0200,
Heinz J . Mauelshagen wrote:
>
> Mark,
>
> Chris Mason implemented an interface between the VFS and LVM, which is defined
> by 2 new functions VFS functions. They have to be supported in the filesystem
> itself in order to flush the journal and lock the filesystem for I/O, get
> back to LVM so that it can activate the prepared snapshot. LVM unlocks the
> filesystem after this.
> You pay a (small) I/O penalty for the journal flush.
>
> Because those functions are not in vanilla, you still need to patch the
> kernel with the linux-2.4.X-VFS-lock-patch contained in the LVM distribution :-(
>
Does it mean that, to support XFS snapshots you need to apply the patch ?.
http://linuxtoday.com/news_story.php3?ltsn=2001-07-11-011-20-NW-SW
This announcement says XFS 1.0.1 has "LVM snapshotting capability added",
but it says nothing about additional kernel patches required.
Could you clarify please ?.
--
José Luis Domingo López
Linux Registered User #189436 Debian GNU/Linux Potato (P166 64 MB RAM)
jdomingo EN internautas PUNTO org => ¿ Spam ? Atente a las consecuencias
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