common/config: export TEST_DEV for mkfs.xfs

As of xfsprogs commit 6e0ed3d1 ("mkfs: stop allowing tiny filesystems")
attempts to create XFS filesystems sized under 300M fail, unless
TEST_DIR, TEST_DEV and QA_CHECK_FS environment variables are exported
(or a --unsupported mkfs parameter is provided).

TEST_DIR and QA_CHECK_FS are already exported, while TEST_DEV may only
be locally set if provided via e.g. configs/$HOSTNAME.config. Explicitly
export TEST_DEV to ensure that tests which call _scratch_mkfs_sized()
with an fssize under 300M run normally.

Signed-off-by: David Disseldorp <ddiss@suse.de>
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Zorro Lang <zlang@kernel.org>

diff --git a/common/config b/common/config
index eac0710e87beb6543a2f392be6330f615a820c7e..2114d9360790e7abcad5e90448765d6f7349693b 100644 (file)
--- a/common/config
+++ b/common/config
@@ -920,6 +920,9 @@ else
 fi
 
 _canonicalize_devices
+# mkfs.xfs checks for TEST_DEV before permitting < 300M filesystems. TEST_DIR
+# and QA_CHECK_FS are also checked by mkfs.xfs, but already exported elsewhere.
+export TEST_DEV
 
 # make sure this script returns success
 /bin/true