linux-ext4 - [PATCH 28/33] generic/405: don't stall on mkfs asking for input

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Message-ID: <176169820499.1433624.12993835503190782134.stgit@frogsfrogsfrogs>
Date: Tue, 28 Oct 2025 18:27:43 -0700
From: "Darrick J. Wong" <djwong@...nel.org>
To: djwong@...nel.org, zlang@...hat.com
Cc: neal@...pa.dev, fstests@...r.kernel.org, linux-ext4@...r.kernel.org,
 linux-fsdevel@...r.kernel.org, joannelkoong@...il.com, bernd@...ernd.com
Subject: [PATCH 28/33] generic/405: don't stall on mkfs asking for input

From: Darrick J. Wong <djwong@...nel.org>

If you try to test ext4 with 8k block size, this test will hang forever
on:

mke2fs 1.47.4~WIP-2025-07-09 (9-Jul-2025)
mkfs.fuse.ext4: 8192-byte blocks too big for system (max 4096)
Proceed anyway? (y,N)

Because we invoked mkfs directly
---
 tests/generic/405 |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/generic/405 b/tests/generic/405
index c90190c8d28457..0cf5b76a7c20cc 100755
--- a/tests/generic/405
+++ b/tests/generic/405
@@ -36,7 +36,7 @@ _dmthin_init $BACKING_SIZE $VIRTUAL_SIZE
 # try mkfs on dmthin device, expect mkfs failure if 1M isn't big enough to hold
 # all the metadata. But if mkfs returns success, we expect the filesystem is
 # consistent, make sure it doesn't currupt silently.
-$MKFS_PROG -t $FSTYP $DMTHIN_VOL_DEV >>$seqres.full 2>&1
+yes | $MKFS_PROG -t $FSTYP $DMTHIN_VOL_DEV >>$seqres.full 2>&1
 if [ $? -eq 0 ]; then
 	_dmthin_check_fs
 fi