[PATCH V3] xfstests: use stat not lstat when examining devices

[Eric Sandeen]

If you try running xfstests on lvm volumes which are symlinks,
it'll fail to run several tests because our _require_scratch 
framework ultimately uses lstat not stat, and does not think 
the lvm device (which is usually a symlink to a dm-X device) 
is a block device.  Sigh.

Just calling stat(1) with -L to follow the link should
suffice.

Signed-off-by: Eric Sandeen <sandeen at sandeen.net>
---

diff --git a/common.rc b/common.rc
index 6bf1e12..db18884 100644
--- a/common.rc
+++ b/common.rc
@@ -584,7 +584,7 @@ _is_block_dev()
 	exit 1
     fi
 
-    [ -b $1 ] && src/lstat64 $1 | $AWK_PROG '/Device type:/ { print $9 }'
+    [ -b $1 ] && stat -L $1 | $AWK_PROG '/Device type:/ { print $9 }'
 }
 
 # Do a command, log it to $seq.full, optionally test return status