[Ocfs2-tools-devel] fsck, lost+found, libocfs2 allocating

[Joel Becker]

On Mon, Nov 22, 2004 at 12:30:16PM -0800, Zach Brown wrote:
> - teach ocfs2_new_inode() to try allocating bits from each node.  I
> don't have strong preferences about trying to keep them balanced, or
> anything, I would just walk them in order looking for a free bit.

	Hmm, we could.  My intention was always to try node 0, and
expand as needed.

> - add some input to the chain allocator so that ocfs2_new_inode() can
> ask to have a group created once it has discovered that all the node's
> allocators don't have groups with free bits.
> ocfs2_chain_alloc_expand()?  Whatever.

	Yes, that is exactly what I was thinking, though I was thinking
ocfs2_chain_alloc_add_group().  Just a name to show we are explicity
adding one group the the chain allocator.

> - implement ocfs2_chain_alloc_range() as the comments describe to
> allocate the group.  This certainly wants a bitmap _alloc_range() helper
> which will have explicit knowledge of the bitmap regions -- callers just
> using test/set to find the range have to worry about unallocated regions
> and that's no good.

	Yeah, we need a range allocator for any use of the cluster
bitmap.

> I'm also holding off on these changes until I hear from Joel that he
> hasn't already implemented them while on a plane :)
	
	I haven't, sorry.  Been very busy over here.

Joel

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Joel Becker
Senior Member of Technical Staff
Oracle Corporation
E-mail: joel.becker at oracle.com
Phone: (650) 506-8127