[PATCH] add lseek changes to fs porting guide

Al updated Documentation/filesystems/porting with 2.5 changes but there
is no mention of lseek.  The following patch, against 2.5.5, adds lseek
to the list of functions that no longer are called with the BKL.

	Robert Love

Documentation/filesystems/porting

@@ -81,11 +81,12 @@ can relax your locking.
 [mandatory]
 
 ->lookup(), ->truncate(), ->create(), ->unlink(), ->mknod(), ->mkdir(),
-->rmdir(), ->link(), ->symlink() and ->rename() are called without BKL now.
-Grab it on the entry, drop upon return - that will guarantee the same
-locking you used to have.  If your method or its parts do not need BKL -
-better yet, now you can shift lock_kernel() / unlock_kernel() so that
-they would protect exactly what needs to be protected.
+->rmdir(), ->link(), ->lseek(), ->symlink() and ->rename() are called
+without BKL now.  Grab it on the entry, drop upon return - that will
+guarantee the same locking you used to have.  If your method or its
+parts do not need BKL - better yet, now you can shift lock_kernel() and
+unlock_kernel() so that they would protect exactly what needs to be
+protected.
 
 ---
 [informational]