On Wed, Jul 12, 2017 at 02:40:11PM -0700, Jay Lan wrote: > Hi all, > > I was writing a livepatch patch, but compilation failed in creating the .ko > because mount_lock is "undefined." > > The mount_lock is defined globally in fs/namespace.c > __cacheline_aligned_in_smp DEFINE_SEQLOCK(mount_lock); > > and extern in fs/mount.h. > extern seqlock_t mount_lock; > > If there is a reason that mount_lock should not be EXPORT_SYMBOL_GPL, please > advise; otherwise, I propose the patch to export this symbol. Because there is no %$^$^ reason to use it from a module ever?
