On Thu, Jun 18, 2009 at 02:43:02PM -0700, Trond Myklebust wrote: > On Thu, 2009-06-18 at 16:55 -0400, Christoph Hellwig wrote: > > On Thu, Jun 18, 2009 at 12:25:01PM -0700, Trond Myklebust wrote: > > > /* spinlock for vfsmount related operations, inplace of dcache_lock */ > > > __cacheline_aligned_in_smp DEFINE_SPINLOCK(vfsmount_lock); > > > +EXPORT_SYMBOL(vfsmount_lock); > > > > This is not mentioned in the patch description and also doesn't seem > > to be used in the following patches. > > > > Exporting it is a really bad idea anyway as it protects data structures > > that should not be exposed to filesystems. > > It is used by the inlined function put_mnt_ns(). It would be trivial to > make that an extern, and avoid the need for the vfsmount_lock export. > Would that be acceptable? I think moving it out of line is much better. You can also merged it into __put_mnt_ns while you're at it. -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
