On Mon, 24 Sep 2007 18:54:11 +0100
Christoph Hellwig <[email protected]> wrote:
> As we already say in various messages the percpu counters in here
> look rather fishy. I'd recomment to take a look at the per-cpu
> superblock counters in XFS as they've been debugged quite well
> now and could probably be lifted into a generic library for this
> kind of think. The code is mostly in fs/xfs/xfs_mount.c can
> can be spotted by beeing under #ifdef HAVE_PERCPU_SB.
>
> It also handles cases like hotplug cpu nicely that this code
> seems to work around by always iterating over all possible cpus
> which might not be nice on a dual core laptop with a distro kernel
> that also has to support big iron.
hm. How come xfs invented a new version of percpu_counters?
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