[PATCH] xfs/010: explicitly allow corrupted write in xfs_db

[Eric Sandeen <sandeen@redhat.com>]

xfs/010 wants to write corruption and test how xfs_repair
deals, but when:

  xfs: forbid AG btrees with level == 0

is merged to userspace, this new test fails the write verifier
in xfs_db.

Add "-c" to allow the corrupted write, do the corruptions all
in one xfs_db command (so it doesn't have to re-read the
corrupted data on 2nd startup), and filter out the

  "Allowing write of corrupted data and bad CRC"

output from the "write -c" command.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
---

diff --git a/tests/xfs/010 b/tests/xfs/010
index d350d64..471ec2c 100755
--- a/tests/xfs/010
+++ b/tests/xfs/010
@@ -95,8 +95,11 @@ _corrupt_finobt_root()
 	dev=$1
 
 	# nuke the agi finobt root fields
-	$XFS_DB_PROG -x -c "agi 0" -c "write free_root 0" $dev
-	$XFS_DB_PROG -x -c "agi 0" -c "write free_level 0" $dev
+	$XFS_DB_PROG -x				\
+		-c "agi 0"			\
+		-c "write -c free_root 0"	\
+		-c "write -c free_level 0"	\
+		$dev | grep -v "Allowing write of corrupted"
 }
 
 # real QA test starts here