On Mon, Jun 12, 2017 at 04:00:45PM -0700, Khazhismel Kumykov wrote: > On Fri, Jun 2, 2017 at 11:47 PM, Khazhismel Kumykov <khazhy@xxxxxxxxxx> wrote: > > 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. > > I'm not entirely familiar the process here, is the above change > committed somewhere, should I propose a patch? Sorry, got distracted by other stuff; I'll push that today.