On Fri, Jun 2, 2017 at 11:20 PM, Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote: > The thing is, unlike shrink_dcache_parent() we *can* bugger off as > soon as we'd found no victims, nothing mounted and dentry itself > is unhashed. We can't do anything in select_collect() (we would've > broken shrink_dcache_parent() that way), but we can do unhashing > in check_and_drop() in "really nothing to do" case and we can return > from d_invalidate() after that. So how about this: That does the trick.
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