btrfs/14[01]: Use proper helper to get both devid and physical for corruption

[BUG]
With btrfs-progs v5.4, btrfs/140 and btrfs/141 will fail.

[CAUSE]
Both tests are testing re-silvering of RAID1, thus they need to corrupt
on-disk data.

This requires to do manual logical -> physical bytes mapping in the test
case.
However the test case itself uses too many hard coded helper to grab
physical offset, which will change with mkfs.btrfs.

[FIX]
Use more flex helper, to get both devid and physical for such
corruption.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>

tests/btrfs/140

@@ -46,10 +46,26 @@ _require_odirect
 
 get_physical()
 {
-	# $1 is logical address
+	local logical=$1
-	# print chunk tree and find devid 2 which is $SCRATCH_DEV
+	local stripe=$2
 	$BTRFS_UTIL_PROG inspect-internal dump-tree -t 3 $SCRATCH_DEV | \
-	grep $1 -A 6 | awk '($1 ~ /stripe/ && $3 ~ /devid/ && $4 ~ /1/) { print $6 }'
+		grep $logical -A 6 | \
+		$AWK_PROG "(\$1 ~ /stripe/ && \$3 ~ /devid/ && \$2 ~ /$stripe/) { print \$6 }"
+}
+
+get_devid()
+{
+	local logical=$1
+	local stripe=$2
+	$BTRFS_UTIL_PROG inspect-internal dump-tree -t 3 $SCRATCH_DEV | \
+		grep $logical -A 6 | \
+		$AWK_PROG "(\$1 ~ /stripe/ && \$3 ~ /devid/ && \$2 ~ /$stripe/) { print \$4 }"
+}
+
+get_device_path()
+{
+	local devid=$1
+	echo "$SCRATCH_DEV_POOL" | $AWK_PROG "{print \$$devid}"
 }
 
 _scratch_dev_pool_get 2
@@ -72,11 +88,15 @@ echo "step 2......corrupt file extent" >>$seqres.full
 
 ${FILEFRAG_PROG} -v $SCRATCH_MNT/foobar >> $seqres.full
 logical_in_btrfs=`${FILEFRAG_PROG} -v $SCRATCH_MNT/foobar | _filter_filefrag | cut -d '#' -f 1`
-physical_on_scratch=`get_physical ${logical_in_btrfs}`
+physical=$(get_physical ${logical_in_btrfs} 1)
+devid=$(get_devid ${logical_in_btrfs} 1)
+devpath=$(get_device_path ${devid})
 
 _scratch_unmount
-$XFS_IO_PROG -d -c "pwrite -S 0xbb -b 64K $physical_on_scratch 64K" $SCRATCH_DEV |\
+
-	_filter_xfs_io_offset
+echo " corrupt stripe #1, devid $devid devpath $devpath physical $physical" \
+	>> $seqres.full
+$XFS_IO_PROG -d -c "pwrite -S 0xbb -b 64K $physical 64K" $devpath > /dev/null
 
 _scratch_mount
 
@@ -96,7 +116,7 @@ done
 _scratch_unmount
 
 # check if the repair works
-$XFS_IO_PROG -d -c "pread -v -b 512 $physical_on_scratch 512" $SCRATCH_DEV |\
+$XFS_IO_PROG -d -c "pread -v -b 512 $physical 512" $devpath |\
 	_filter_xfs_io_offset
 
 _scratch_dev_pool_put

tests/btrfs/140.out

@@ -1,8 +1,6 @@
 QA output created by 140
 wrote 131072/131072 bytes
 XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-wrote 65536/65536 bytes
-XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 XXXXXXXX:  aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa  ................
 XXXXXXXX:  aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa  ................
 XXXXXXXX:  aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa  ................

tests/btrfs/141

@@ -46,10 +46,26 @@ _require_command "$FILEFRAG_PROG" filefrag
 
 get_physical()
 {
-        # $1 is logical address
+	local logical=$1
-        # print chunk tree and find devid 2 which is $SCRATCH_DEV
+	local stripe=$2
-        $BTRFS_UTIL_PROG inspect-internal dump-tree -t 3 $SCRATCH_DEV | \
+	$BTRFS_UTIL_PROG inspect-internal dump-tree -t 3 $SCRATCH_DEV | \
-	grep $1 -A 6 | awk '($1 ~ /stripe/ && $3 ~ /devid/ && $4 ~ /1/) { print $6 }'
+		grep $logical -A 6 | \
+		$AWK_PROG "(\$1 ~ /stripe/ && \$3 ~ /devid/ && \$2 ~ /$stripe/) { print \$6 }"
+}
+
+get_devid()
+{
+	local logical=$1
+	local stripe=$2
+	$BTRFS_UTIL_PROG inspect-internal dump-tree -t 3 $SCRATCH_DEV | \
+		grep $logical -A 6 | \
+		$AWK_PROG "(\$1 ~ /stripe/ && \$3 ~ /devid/ && \$2 ~ /$stripe/) { print \$4 }"
+}
+
+get_device_path()
+{
+	local devid=$1
+	echo "$SCRATCH_DEV_POOL" | $AWK_PROG "{print \$$devid}"
 }
 
 _scratch_dev_pool_get 2
@@ -72,11 +88,14 @@ echo "step 2......corrupt file extent" >>$seqres.full
 
 ${FILEFRAG_PROG} -v $SCRATCH_MNT/foobar >> $seqres.full
 logical_in_btrfs=`${FILEFRAG_PROG} -v $SCRATCH_MNT/foobar | _filter_filefrag | cut -d '#' -f 1`
-physical_on_scratch=`get_physical ${logical_in_btrfs}`
+physical=$(get_physical ${logical_in_btrfs} 1)
+devid=$(get_devid ${logical_in_btrfs} 1)
+devpath=$(get_device_path ${devid})
 
 _scratch_unmount
-$XFS_IO_PROG -d -c "pwrite -S 0xbb -b 64K $physical_on_scratch 64K" $SCRATCH_DEV |\
+echo " corrupt stripe #1, devid $devid devpath $devpath physical $physical" \
-	_filter_xfs_io_offset
+	>> $seqres.full
+$XFS_IO_PROG -d -c "pwrite -S 0xbb -b 64K $physical 64K" $devpath > /dev/null
 
 _scratch_mount
 
@@ -97,7 +116,7 @@ done
 _scratch_unmount
 
 # check if the repair works
-$XFS_IO_PROG -c "pread -v -b 512 $physical_on_scratch 512" $SCRATCH_DEV |\
+$XFS_IO_PROG -c "pread -v -b 512 $physical 512" $devpath |\
 	_filter_xfs_io_offset
 
 _scratch_dev_pool_put

tests/btrfs/141.out

@@ -1,8 +1,6 @@
 QA output created by 141
 wrote 131072/131072 bytes
 XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-wrote 65536/65536 bytes
-XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 XXXXXXXX:  aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa  ................
 XXXXXXXX:  aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa  ................
 XXXXXXXX:  aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa  ................