Re: [PATCH 15/18] fs: introduce a per-cpu last_ino allocator

[Christoph Hellwig]

On Sat, Oct 16, 2010 at 06:57:21PM +1100, Nick Piggin wrote:
> My approach in my tree is a new function like Al suggests, which
> simply doesn't assign the ino. That keeps compatibility backward.

There's really no point.  The concept of creating a new inode has
absolutely nothing to do with i_ino.  We'll just need i_ino before
adding an inode to the hash.  The only reason it's been done by
new_inode is historic coincidence - cleaning this mess up is a good
thing independent of making the fake inode number generation scale
better.  As you can see in my patch moving it out there's actually
only very few filesystems that need it.

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