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? Multiple inode caches? No. Multiple caches with call_rcu() free? See btrfs or gfs2. -- Kirill A. Shutemov
Attachment:
signature.asc
Description: Digital signature
