[PATCH 01/10] xfstests: Add tmpfs support

[Junho Ryu <jayr@google.com>]

From: Boris Ranto <branto@redhat.com>

This is just a simple patch to get the tmpfs working as a target file
system. The patch copies the way nfs is handled in xfstests.

I didn't change the xfstests logic to recognize a proper SCRATCH_DEV.
Hence, the SCRATCH_DEV for tmpfs should be in nfs form (with ':' sign
in it) in order for this to work properly.

Signed-off-by: Boris Ranto <branto@redhat.com>
Signed-off-by: Junho Ryu <jayr@google.com>
---
 check     |  2 ++
 common/rc | 22 ++++++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/check b/check
index c88bcf2..320ad26 100755
--- a/check
+++ b/check
@@ -73,6 +73,7 @@ usage()
 
 check options
     -nfs                test NFS
+    -tmpfs              test TMPFS
     -l			line mode diff
     -udiff		show unified diff (default)
     -n			show me, do not run tests
@@ -207,6 +208,7 @@ while [ $# -gt 0 ]; do
 	-\? | -h | --help) usage ;;
 
 	-nfs)	FSTYP=nfs ;;
+	-tmpfs)	FSTYP=tmpfs ;;
 
 	-g)	group=$2 ; shift ;
 		GROUP_LIST="$GROUP_LIST $group"
diff --git a/common/rc b/common/rc
index 5f61d57..a2005c9 100644
--- a/common/rc
+++ b/common/rc
@@ -112,6 +112,10 @@ _mount_opts()
 	# acls aren't turned on by default on gfs2
 	export MOUNT_OPTIONS="-o acl $GFS2_MOUNT_OPTIONS"
 	;;
+    tmpfs)
+	# We need to specify the size at mount, use 512 MB by default
+	export MOUNT_OPTIONS="-o size=512M $TMPFS_MOUNT_OPTIONS"
+	;;
     *)
 	;;
     esac
@@ -140,6 +144,9 @@ _mkfs_opts()
     jfs)
 	export MKFS_OPTIONS="$JFS_MKFS_OPTIONS -q"
 	;;
+    tmpfs)
+	export MKFS_OPTIONS="$TMPFS_MKFS_OPTIONS"
+	;;
     *)
 	;;
     esac
@@ -544,6 +551,9 @@ _scratch_mkfs()
     ext4)
 	_scratch_mkfs_ext4 $*
 	;;
+    tmpfs)
+	# do nothing for tmpfs
+	;;
     *)
 	yes | $MKFS_PROG -t $FSTYP -- $MKFS_OPTIONS $* $SCRATCH_DEV
 	;;
@@ -977,6 +987,12 @@ _require_scratch()
 	nfs*)
                  _notrun "requires a scratch device"
 		 ;;
+	tmpfs)
+		if [ -z "$SCRATCH_DEV" -o ! -d "$SCRATCH_MNT" ];
+		then
+		    _notrun "this test requires a valid \$SCRATCH_MNT and unique $SCRATCH_DEV"
+		fi
+		;;
 	*)
 		 if [ -z "$SCRATCH_DEV" -o "`_is_block_dev $SCRATCH_DEV`" = "" ]
 		 then
@@ -1701,6 +1717,9 @@ _check_test_fs()
     btrfs)
 	_check_btrfs_filesystem $TEST_DEV
 	;;
+    tmpfs)
+	# no way to check consistency for tmpfs
+	;;
     *)
 	_check_generic_filesystem $TEST_DEV
 	;;
@@ -1733,6 +1752,9 @@ _check_scratch_fs()
     btrfs)
 	_check_btrfs_filesystem $device
 	;;
+    tmpfs)
+	# no way to check consistency for tmpfs
+	;;
     *)
 	_check_generic_filesystem $device
 	;;
-- 
1.8.5.1

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