common/xfs: refactor agcount calculation for mounted filesystems

Create a helper function to return the number of AGs of a mounted
filesystem so that we can get rid of the open-coded versions in various
tests.  The new helper will be used in a subsequent patch.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>

common/xfs

@@ -878,3 +878,9 @@ _force_xfsv4_mount_options()
 	fi
 	echo "MOUNT_OPTIONS = $MOUNT_OPTIONS" >>$seqres.full
 }
+
+# Find AG count of mounted filesystem
+_xfs_mount_agcount()
+{
+	$XFS_INFO_PROG "$1" | grep agcount= | sed -e 's/^.*agcount=\([0-9]*\),.*$/\1/g'
+}

tests/xfs/085

@@ -63,7 +63,7 @@ for x in `seq 2 64`; do
 	touch "${TESTFILE}.${x}"
 done
 inode="$(stat -c '%i' "${TESTFILE}.1")"
-agcount="$($XFS_INFO_PROG "${SCRATCH_MNT}" | grep agcount= | sed -e 's/^.*agcount=\([0-9]*\),.*$/\1/g')"
+agcount="$(_xfs_mount_agcount $SCRATCH_MNT)"
 umount "${SCRATCH_MNT}"
 
 echo "+ check fs"

tests/xfs/086

@@ -64,7 +64,7 @@ for x in `seq 2 64`; do
 	touch "${TESTFILE}.${x}"
 done
 inode="$(stat -c '%i' "${TESTFILE}.1")"
-agcount="$($XFS_INFO_PROG "${SCRATCH_MNT}" | grep agcount= | sed -e 's/^.*agcount=\([0-9]*\),.*$/\1/g')"
+agcount="$(_xfs_mount_agcount $SCRATCH_MNT)"
 test "${agcount}" -gt 1 || _notrun "Single-AG XFS not supported"
 umount "${SCRATCH_MNT}"
 

tests/xfs/087

@@ -64,7 +64,7 @@ for x in `seq 2 64`; do
 	touch "${TESTFILE}.${x}"
 done
 inode="$(stat -c '%i' "${TESTFILE}.1")"
-agcount="$($XFS_INFO_PROG "${SCRATCH_MNT}" | grep agcount= | sed -e 's/^.*agcount=\([0-9]*\),.*$/\1/g')"
+agcount="$(_xfs_mount_agcount $SCRATCH_MNT)"
 umount "${SCRATCH_MNT}"
 
 echo "+ check fs"

tests/xfs/088

@@ -64,7 +64,7 @@ for x in `seq 2 64`; do
 	touch "${TESTFILE}.${x}"
 done
 inode="$(stat -c '%i' "${TESTFILE}.1")"
-agcount="$($XFS_INFO_PROG "${SCRATCH_MNT}" | grep agcount= | sed -e 's/^.*agcount=\([0-9]*\),.*$/\1/g')"
+agcount="$(_xfs_mount_agcount $SCRATCH_MNT)"
 umount "${SCRATCH_MNT}"
 
 echo "+ check fs"

tests/xfs/089

@@ -64,7 +64,7 @@ for x in `seq 2 64`; do
 	touch "${TESTFILE}.${x}"
 done
 inode="$(stat -c '%i' "${TESTFILE}.1")"
-agcount="$($XFS_INFO_PROG "${SCRATCH_MNT}" | grep agcount= | sed -e 's/^.*agcount=\([0-9]*\),.*$/\1/g')"
+agcount="$(_xfs_mount_agcount $SCRATCH_MNT)"
 umount "${SCRATCH_MNT}"
 
 echo "+ check fs"

tests/xfs/091

@@ -64,7 +64,7 @@ for x in `seq 2 64`; do
 	touch "${TESTFILE}.${x}"
 done
 inode="$(stat -c '%i' "${TESTFILE}.1")"
-agcount="$($XFS_INFO_PROG "${SCRATCH_MNT}" | grep agcount= | sed -e 's/^.*agcount=\([0-9]*\),.*$/\1/g')"
+agcount="$(_xfs_mount_agcount $SCRATCH_MNT)"
 umount "${SCRATCH_MNT}"
 
 echo "+ check fs"

tests/xfs/093

@@ -64,7 +64,7 @@ for x in `seq 2 64`; do
 	touch "${TESTFILE}.${x}"
 done
 inode="$(stat -c '%i' "${TESTFILE}.1")"
-agcount="$($XFS_INFO_PROG "${SCRATCH_MNT}" | grep agcount= | sed -e 's/^.*agcount=\([0-9]*\),.*$/\1/g')"
+agcount="$(_xfs_mount_agcount $SCRATCH_MNT)"
 umount "${SCRATCH_MNT}"
 
 echo "+ check fs"

tests/xfs/097

@@ -67,7 +67,7 @@ for x in `seq 2 64`; do
 	touch "${TESTFILE}.${x}"
 done
 inode="$(stat -c '%i' "${TESTFILE}.1")"
-agcount="$($XFS_INFO_PROG "${SCRATCH_MNT}" | grep agcount= | sed -e 's/^.*agcount=\([0-9]*\),.*$/\1/g')"
+agcount="$(_xfs_mount_agcount $SCRATCH_MNT)"
 umount "${SCRATCH_MNT}"
 
 echo "+ check fs"

tests/xfs/130

@@ -43,7 +43,7 @@ _scratch_mkfs_xfs > /dev/null
 echo "+ mount fs image"
 _scratch_mount
 blksz="$(stat -f -c '%s' "${SCRATCH_MNT}")"
-agcount="$($XFS_INFO_PROG "${SCRATCH_MNT}" | grep agcount= | sed -e 's/^.*agcount=\([0-9]*\),.*$/\1/g')"
+agcount="$(_xfs_mount_agcount $SCRATCH_MNT)"
 
 echo "+ make some files"
 _pwrite_byte 0x62 0 $((blksz * 64)) "${SCRATCH_MNT}/file0" >> "$seqres.full"

tests/xfs/235

@@ -41,7 +41,7 @@ _scratch_mkfs_xfs > /dev/null
 echo "+ mount fs image"
 _scratch_mount
 blksz=$(stat -f -c '%s' ${SCRATCH_MNT})
-agcount=$($XFS_INFO_PROG ${SCRATCH_MNT} | grep agcount= | sed -e 's/^.*agcount=\([0-9]*\),.*$/\1/g')
+agcount=$(_xfs_mount_agcount $SCRATCH_MNT)
 
 echo "+ make some files"
 _pwrite_byte 0x62 0 $((blksz * 64)) ${SCRATCH_MNT}/file0 >> $seqres.full

tests/xfs/271

@@ -37,7 +37,7 @@ echo "Format and mount"
 _scratch_mkfs > "$seqres.full" 2>&1
 _scratch_mount
 
-agcount=$($XFS_INFO_PROG $SCRATCH_MNT | grep agcount= | sed -e 's/^.*agcount=\([0-9]*\),.*$/\1/g')
+agcount=$(_xfs_mount_agcount $SCRATCH_MNT)
 
 echo "Get fsmap" | tee -a $seqres.full
 $XFS_IO_PROG -c 'fsmap -v' $SCRATCH_MNT > $TEST_DIR/fsmap