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SubjectRe: [Q] missing unused dentry in prune_dcache()?
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Vasily Averin <vvs@sw.ru> wrote:

> I would note that in first two hunks you have decremented
> dentry_stat.nr_unused correctly, under dcache_lock. Probably it's better to
> count freed dentries only in third case and corrects dentry_stat.nr_unused
> value inside shrink_dcache_for_umount_subtree() function before return.

Maybe, maybe not. This way we only touch the dentry_stat cacheline once, if
at all. I'm not sure it'd make much difference though.

David
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