Re: [PATCH v3 1/3] common/rc,xfs/207: Add a common helper function to check xflag bits

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On 11/21/24 22:50, Darrick J. Wong wrote:
On Thu, Nov 21, 2024 at 10:39:10AM +0530, Nirjhar Roy wrote:
This patch defines a common helper function to test whether any of
fsxattr xflags field is set or not. We will use this helper in
an upcoming patch for checking extsize (e) flag.

Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@xxxxxxxxx>
Reviewed-by: Ojaswin Mujoo <ojaswin@xxxxxxxxxxxxx>
Signed-off-by: Nirjhar Roy <nirjhar@xxxxxxxxxxxxx>
Looks good to me now,
Reviewed-by: "Darrick J. Wong" <djwong@xxxxxxxxxx>

--D

Thank you.

--NR


---
  common/rc     |  7 +++++++
  tests/xfs/207 | 15 ++++-----------
  2 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/common/rc b/common/rc
index 2af26f23..cccc98f5 100644
--- a/common/rc
+++ b/common/rc
@@ -41,6 +41,13 @@ _md5_checksum()
  	md5sum $1 | cut -d ' ' -f1
  }
+# Check whether a fsxattr xflags name ($2) field is set on a given file ($1).
+# e.g, fsxattr.xflags =  0x80000800 [extsize, has-xattr]
+_test_fsxattr_xflag()
+{
+	grep -q "fsxattr.xflags.*\[.*$2.*\]" <($XFS_IO_PROG -c "stat -v" "$1")
+}
+
  # Write a byte into a range of a file
  _pwrite_byte() {
  	local pattern="$1"
diff --git a/tests/xfs/207 b/tests/xfs/207
index bbe21307..394e7e55 100755
--- a/tests/xfs/207
+++ b/tests/xfs/207
@@ -21,15 +21,6 @@ _require_cp_reflink
  _require_xfs_io_command "fiemap"
  _require_xfs_io_command "cowextsize"
-# Takes the fsxattr.xflags line,
-# i.e. fsxattr.xflags = 0x0 [--------------C-]
-# and tests whether a flag character is set
-test_xflag()
-{
-    local flg=$1
-    grep -q "\[.*${flg}.*\]" && echo "$flg flag set" || echo "$flg flag unset"
-}
-
  echo "Format and mount"
  _scratch_mkfs > $seqres.full 2>&1
  _scratch_mount >> $seqres.full 2>&1
@@ -65,14 +56,16 @@ echo "Set cowextsize and check flag"
  $XFS_IO_PROG -c "cowextsize 1048576" $testdir/file3 | _filter_scratch
  _scratch_cycle_mount
-$XFS_IO_PROG -c "stat" $testdir/file3 | grep 'fsxattr.xflags' | test_xflag "C"
+_test_fsxattr_xflag "$testdir/file3" "cowextsize" && echo "C flag set" || \
+	echo "C flag unset"
  $XFS_IO_PROG -c "cowextsize" $testdir/file3 | _filter_scratch
echo "Unset cowextsize and check flag"
  $XFS_IO_PROG -c "cowextsize 0" $testdir/file3 | _filter_scratch
  _scratch_cycle_mount
-$XFS_IO_PROG -c "stat" $testdir/file3 | grep 'fsxattr.xflags' | test_xflag "C"
+_test_fsxattr_xflag "$testdir/file3" "cowextsize" && echo "C flag set" || \
+	echo "C flag unset"
  $XFS_IO_PROG -c "cowextsize" $testdir/file3 | _filter_scratch
status=0
--
2.43.5


--
---
Nirjhar Roy
Linux Kernel Developer
IBM, Bangalore





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