From: Theodore Ts'o <tytso@mit.edu>
Date: Sun, 28 Feb 2016 23:18:17 +0000 (+1100)
Subject: defrag: require extents support for ext4 defrag
X-Git-Tag: v2022.05.01~2588
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=902223bdbbf2;p=users%2Fhch%2Fxfstests-dev.git

defrag: require extents support for ext4 defrag

The e4defrag program requires the use of fallocate, which in turn
means that the file system must have extents.  Enforce this
requirement so we don't get test failure noise when testing ext4's
ext3 compatibility.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
---

diff --git a/common/defrag b/common/defrag
index 942593e12..6fbf8304e 100644
--- a/common/defrag
+++ b/common/defrag
@@ -27,7 +27,9 @@ _require_defrag()
         DEFRAG_PROG="$XFS_FSR_PROG"
 	;;
     ext4|ext4dev)
-        DEFRAG_PROG="$E4DEFRAG_PROG"
+	DEFRAG_PROG="$E4DEFRAG_PROG"
+	dumpe2fs -h $SCRATCH_DEV 2> /dev/null | grep -wq extent || \
+	     _notrun "file system does not have extents, needed for defrag"
 	;;
     btrfs)
 	DEFRAG_PROG="$BTRFS_UTIL_PROG filesystem defragment"