diff options
Diffstat (limited to 'sys/contrib/openzfs/tests/zfs-tests/include/blkdev.shlib')
| -rw-r--r-- | sys/contrib/openzfs/tests/zfs-tests/include/blkdev.shlib | 89 |
1 files changed, 61 insertions, 28 deletions
diff --git a/sys/contrib/openzfs/tests/zfs-tests/include/blkdev.shlib b/sys/contrib/openzfs/tests/zfs-tests/include/blkdev.shlib index b34f2c04d743..3f29d4f594a1 100644 --- a/sys/contrib/openzfs/tests/zfs-tests/include/blkdev.shlib +++ b/sys/contrib/openzfs/tests/zfs-tests/include/blkdev.shlib @@ -548,22 +548,37 @@ function list_file_blocks # input_file # # Establish a mapping between vdev ids as shown in a DVA and the - # pathnames they correspond to in ${VDEV_MAP[]}. + # pathnames they correspond to in ${VDEV_MAP[][]}. + # + # The vdev bits in a DVA refer to the top level vdev id. + # ${VDEV_MAP[$id]} is an array of the vdev paths within that vdev. # eval $(zdb -C $pool | awk ' - BEGIN { - printf("typeset VDEV_MAP\n"); - looking = 0; - } - /^ children/ { - id = $1; - looking = 1; - } - /path: / && looking == 1 { - print id" "$2; - looking = 0; - } - ' | sed -n 's/^children\[\([0-9]\)\]: \(.*\)$/VDEV_MAP[\1]=\2/p') + BEGIN { printf "typeset -a VDEV_MAP;" } + function subscript(s) { + # "[#]" is more convenient than the bare "#" + match(s, /\[[0-9]*\]/) + return substr(s, RSTART, RLENGTH) + } + id && !/^ / { + # left a top level vdev + id = 0 + } + id && $1 ~ /^path:$/ { + # found a vdev path; save it in the map + printf "VDEV_MAP%s%s=%s;", id, child, $2 + } + /^ children/ { + # entering a top level vdev + id = subscript($0) + child = "[0]" # default in case there is no nested vdev + printf "typeset -a VDEV_MAP%s;", id + } + /^ children/ { + # entering a nested vdev (e.g. child of a top level mirror) + child = subscript($0) + } + ') # # The awk below parses the output of zdb, printing out the level @@ -571,22 +586,40 @@ function list_file_blocks # input_file # two are converted to decimal in the while loop. 4M is added to # the offset to compensate for the first two labels and boot # block. Lastly, the offset and length are printed in units of - # 512b blocks for ease of use with dd. + # 512B blocks for ease of use with dd. # + typeset level vdev path offset length + if awk -n '' 2>/dev/null; then + # gawk needs -n to decode hex + AWK='awk -n' + else + AWK='awk' + fi log_must zpool sync -f - typeset level path offset length - zdb -ddddd $ds $objnum | awk -F: ' - BEGIN { looking = 0 } - /^Indirect blocks:/ { looking = 1} - /^\t\tsegment / { looking = 0} - /L[0-8]/ && looking == 1 { print $0} - ' | sed -n 's/^.*\(L[0-9]\) \([0-9]*\):\([0-9a-f]*\):\([0-9a-f]*\) .*$/\1 \2 \3 \4/p' | \ - while read level path offset length; do - offset=$((16#$offset)) # Conversion from hex - length=$((16#$length)) - offset="$(((offset + 4 * 1024 * 1024) / 512))" - length="$((length / 512))" - echo "$level ${VDEV_MAP[$path]} $offset $length" + zdb -dddddd $ds $objnum | $AWK -v pad=$((4<<20)) -v bs=512 ' + /^$/ { looking = 0 } + looking { + level = $2 + field = 3 + while (split($field, dva, ":") == 3) { + # top level vdev id + vdev = int(dva[1]) + # offset + 4M label/boot pad in 512B blocks + offset = (int("0x"dva[2]) + pad) / bs + # length in 512B blocks + len = int("0x"dva[3]) / bs + + print level, vdev, offset, len + + ++field + } + } + /^Indirect blocks:/ { looking = 1 } + ' | \ + while read level vdev offset length; do + for path in ${VDEV_MAP[$vdev][@]}; do + echo "$level $path $offset $length" + done done 2>/dev/null } |