On Fri, Jun 08, 2012 at 11:36:24PM +0100, Al Viro wrote: > On Fri, Jun 08, 2012 at 03:31:20PM -0700, Andrew Morton wrote: > > On Fri, 8 Jun 2012 23:27:34 +0100 > > Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote: > > > > > On Fri, Jun 08, 2012 at 03:25:50PM -0700, Andrew Morton wrote: > > > > > > > A neater implementation might be to add a kmem_cache* argument to > > > > unregister_filesystem(). If that is non-NULL, unregister_filesystem() > > > > does the rcu_barrier() and destroys the cache. That way we get to > > > > delete (rather than add) a bunch of code from all filesystems and new > > > > and out-of-tree filesystems cannot forget to perform the rcu_barrier(). > > > > > > There's often enough more than one cache, so that one is no-go. > > > > kmem_cache** ;) > > > > Which filesystems have multiple inode caches? > > inodes are not the only things that get caches of their own... > > BTW, Kirill, would you mind not cross-posting to that many lists ever again? Sorry for that. I haven't deal with patches that potentially affect so many people before. -- Kirill A. Shutemov
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