svn commit: r191028 - head/sys/kern

[Kip Macy]

Author: kmacy
Date: Mon Apr 13 23:09:44 2009
New Revision: 191028
URL: http://svn.freebsd.org/changeset/base/191028

Log:
  - use a shared lock for reads
  - remove stale comment
  
  Reviewed by:	jeffr

Modified:
  head/sys/kern/vfs_vnops.c

Modified: head/sys/kern/vfs_vnops.c
==============================================================================
--- head/sys/kern/vfs_vnops.c	Mon Apr 13 23:08:37 2009	(r191027)
+++ head/sys/kern/vfs_vnops.c	Mon Apr 13 23:09:44 2009	(r191028)
@@ -379,14 +379,8 @@ vn_rdwr(rw, vp, base, len, offset, segfl
 			    != 0)
 				return (error);
 			vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
-		} else {
-			/*
-			 * XXX This should be LK_SHARED but I don't trust VFS
-			 * enough to leave it like that until it has been
-			 * reviewed further.
-			 */
-			vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
-		}
+		} else
+			vn_lock(vp, LK_SHARED | LK_RETRY);
 
 	}
 	ASSERT_VOP_LOCKED(vp, "IO_NODELOCKED with no vp lock held");