Modular filesystem using drop_inode would need inode_lock

[Luck, Tony]

This is mostly a logical inconsistency at the moment (since the
only filesystem that has a "drop_inode" function defined in its
super_operations is hugetlbfs, and it is unlikely to move out of
the kernel and into a module).  But the ->drop_inode() function
is called with inode_lock held, and it is expected to drop the
lock ... which would be impossible for a module as the lock is
not exported.

Signed-off-by: <tony.luck@xxxxxxxxx>



--- old/fs/inode.c	2004-07-09 14:05:16.986225857 -0700
+++ new/fs/inode.c	2004-07-09 14:05:42.198492986 -0700
@@ -81,6 +81,7 @@
  * the i_state of an inode while it is in use..
  */
 spinlock_t inode_lock = SPIN_LOCK_UNLOCKED;
+EXPORT_SYMBOL(inode_lock);
 
 /*
  * iprune_sem provides exclusion between the kswapd or
try_to_free_pages
-
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