linux-ext4 - [PATCH v5 2/3] common/rc: Add a new _require_scratch

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Message-ID: <fbc317332fb3d76680f65eb0c697f8c16b958bc4.1732681064.git.nirjhar@linux.ibm.com>
Date: Wed, 27 Nov 2024 09:58:00 +0530
From: Nirjhar Roy <nirjhar@...ux.ibm.com>
To: fstests@...r.kernel.org
Cc: linux-ext4@...r.kernel.org, linux-xfs@...r.kernel.org,
        ritesh.list@...il.com, ojaswin@...ux.ibm.com, djwong@...nel.org,
        zlang@...nel.org, nirjhar@...ux.ibm.com
Subject: [PATCH v5 2/3] common/rc: Add a new _require_scratch_extsize helper function

_require_scratch_extsize helper function will be used in the
the next patch to make the test run only on filesystems with
extsize support.

Reviewed-by: "Darrick J. Wong" <djwong@...nel.org>
Reviewed-by: Christoph Hellwig <hch@....de>
Reviewed-by: Ojaswin Mujoo <ojaswin@...ux.ibm.com>
Signed-off-by: Nirjhar Roy <nirjhar@...ux.ibm.com>
---
 common/rc | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/common/rc b/common/rc
index f94bee5e..e6c6047d 100644
--- a/common/rc
+++ b/common/rc
@@ -48,6 +48,23 @@ _test_fsxattr_xflag()
 	grep -q "fsxattr.xflags.*\[.*$2.*\]" <($XFS_IO_PROG -c "stat -v" "$1")
 }
 
+# This test requires extsize support on the  filesystem
+_require_scratch_extsize()
+{
+	_require_scratch
+	_require_xfs_io_command "extsize"
+	_scratch_mkfs > /dev/null
+	_scratch_mount
+	local filename=$SCRATCH_MNT/$RANDOM
+	local blksz=$(_get_block_size $SCRATCH_MNT)
+	local extsz=$(( blksz*2 ))
+	local res=$($XFS_IO_PROG -c "open -f $filename" -c "extsize $extsz" \
+		-c "extsize")
+	_scratch_unmount
+	grep -q "\[$extsz\] $filename" <(echo $res) || \
+		_notrun "this test requires extsize support on the filesystem"
+}
+
 # Write a byte into a range of a file
 _pwrite_byte() {
 	local pattern="$1"
-- 
2.43.5