# Attempt to make files of "every" format for data, dirs, attrs etc.
# (with apologies to Eric Sandeen for mutating xfser.sh)
+# Create a file of a given size.
+__populate_create_file() {
+ local sz="$1"
+ local fname="$2"
+
+ $XFS_IO_PROG -f -c "pwrite -S 0x62 -W -b 1m 0 $sz" "${fname}"
+}
+
+# Punch out every other hole in this file, if it exists.
+#
+# The goal here is to force the creation of a large number of metadata records
+# by creating a lot of tiny extent mappings in a file. Callers should ensure
+# that fragmenting the file actually causes record creation. Call this
+# function /after/ creating all other metadata structures.
+__populate_fragment_file() {
+ local fname="$1"
+
+ test -f "${fname}" && $here/src/punch-alternating "${fname}"
+}
+
# Create a large directory
__populate_create_dir() {
name="$1"
# Regular files
# - FMT_EXTENTS
echo "+ extents file"
- $XFS_IO_PROG -f -c "pwrite -S 0x61 0 ${blksz}" "${SCRATCH_MNT}/S_IFREG.FMT_EXTENTS"
+ __populate_create_file $blksz "${SCRATCH_MNT}/S_IFREG.FMT_EXTENTS"
# - FMT_BTREE
echo "+ btree extents file"
nr="$((blksz * 2 / 16))"
- $XFS_IO_PROG -f -c "pwrite -S 0x62 0 $((blksz * nr))" "${SCRATCH_MNT}/S_IFREG.FMT_BTREE"
- ./src/punch-alternating "${SCRATCH_MNT}/S_IFREG.FMT_BTREE"
+ __populate_create_file $((blksz * nr)) "${SCRATCH_MNT}/S_IFREG.FMT_BTREE"
# Directories
# - INLINE
# Free space btree
echo "+ freesp btree"
nr="$((blksz * 2 / 8))"
- $XFS_IO_PROG -f -c "pwrite -S 0x62 0 $((blksz * nr))" "${SCRATCH_MNT}/BNOBT"
- ./src/punch-alternating "${SCRATCH_MNT}/BNOBT"
+ __populate_create_file $((blksz * nr)) "${SCRATCH_MNT}/BNOBT"
# Inode btree
echo "+ inobt btree"
touch "${dir}/${f}"
done
- seq 0 "$((ino_per_rec + 1))" "${nr}" | while read f; do
+ seq 0 2 "${nr}" | while read f; do
rm -f "${dir}/${f}"
done
if [ $is_rmapbt -gt 0 ]; then
echo "+ rmapbt btree"
nr="$((blksz * 2 / 24))"
- $XFS_IO_PROG -f -c "pwrite -S 0x62 0 $((blksz * nr))" "${SCRATCH_MNT}/RMAPBT"
- ./src/punch-alternating "${SCRATCH_MNT}/RMAPBT"
+ __populate_create_file $((blksz * nr)) "${SCRATCH_MNT}/RMAPBT"
fi
# Realtime Reverse-mapping btree
if [ $is_rmapbt -gt 0 ] && [ $is_rt -gt 0 ]; then
echo "+ rtrmapbt btree"
nr="$((blksz * 2 / 32))"
- $XFS_IO_PROG -f -R -c "pwrite -S 0x62 0 $((blksz * nr))" "${SCRATCH_MNT}/RTRMAPBT"
- ./src/punch-alternating "${SCRATCH_MNT}/RTRMAPBT"
+ __populate_create_file $((blksz * nr)) "${SCRATCH_MNT}/RTRMAPBT"
fi
# Reference-count btree
if [ $is_reflink -gt 0 ]; then
echo "+ reflink btree"
nr="$((blksz * 2 / 12))"
- $XFS_IO_PROG -f -c "pwrite -S 0x62 0 $((blksz * nr))" "${SCRATCH_MNT}/REFCOUNTBT"
+ __populate_create_file $((blksz * nr)) "${SCRATCH_MNT}/REFCOUNTBT"
cp --reflink=always "${SCRATCH_MNT}/REFCOUNTBT" "${SCRATCH_MNT}/REFCOUNTBT2"
- ./src/punch-alternating "${SCRATCH_MNT}/REFCOUNTBT"
fi
# Copy some real files (xfs tests, I guess...)
echo "+ real files"
test $fill -ne 0 && __populate_fill_fs "${SCRATCH_MNT}" 5
+ # Make sure we get all the fragmentation we asked for
+ __populate_fragment_file "${SCRATCH_MNT}/S_IFREG.FMT_BTREE"
+ __populate_fragment_file "${SCRATCH_MNT}/BNOBT"
+ __populate_fragment_file "${SCRATCH_MNT}/RMAPBT"
+ __populate_fragment_file "${SCRATCH_MNT}/RTRMAPBT"
+ __populate_fragment_file "${SCRATCH_MNT}/REFCOUNTBT"
+
umount "${SCRATCH_MNT}"
}
# Regular files
# - FMT_INLINE
echo "+ inline file"
- $XFS_IO_PROG -f -c "pwrite -S 0x61 0 1" "${SCRATCH_MNT}/S_IFREG.FMT_INLINE"
+ __populate_create_file 1 "${SCRATCH_MNT}/S_IFREG.FMT_INLINE"
# - FMT_EXTENTS
echo "+ extents file"
- $XFS_IO_PROG -f -c "pwrite -S 0x61 0 ${blksz}" "${SCRATCH_MNT}/S_IFREG.FMT_EXTENTS"
+ __populate_create_file $blksz "${SCRATCH_MNT}/S_IFREG.FMT_EXTENTS"
# - FMT_ETREE
echo "+ extent tree file"
nr="$((blksz * 2 / 12))"
- $XFS_IO_PROG -f -c "pwrite -S 0x62 0 $((blksz * nr))" "${SCRATCH_MNT}/S_IFREG.FMT_ETREE"
- ./src/punch-alternating "${SCRATCH_MNT}/S_IFREG.FMT_ETREE"
+ __populate_create_file $((blksz * nr)) "${SCRATCH_MNT}/S_IFREG.FMT_ETREE"
# Directories
# - INLINE
echo "+ real files"
test $fill -ne 0 && __populate_fill_fs "${SCRATCH_MNT}" 5
+ # Make sure we get all the fragmentation we asked for
+ __populate_fragment_file "${SCRATCH_MNT}/S_IFREG.FMT_ETREE"
+
umount "${SCRATCH_MNT}"
}
fi
if [ -f $dir/$file_count ]; then
- bytes_written=$(stat -c '%s' $dir/$file_count)
+ bytes_written=$(_get_filesize $dir/$file_count)
fi
# If there was no room to make the file, then divide it in
done
}
-# Populate a scratch FS from scratch or from a cached image.
-_scratch_populate_cached() {
- POPULATE_METADUMP="${TEST_DIR}/__populate.${FSTYP}"
- POPULATE_METADUMP_DESCR="${TEST_DIR}/__populate.${FSTYP}.txt"
+# Compute the fs geometry description of a populated filesystem
+_scratch_populate_cache_tag() {
+ local extra_descr=""
+ local size="$(blockdev --getsz "${SCRATCH_DEV}")"
- # Don't keep metadata images cached for more 48 hours...
- rm -rf "$(find "${POPULATE_METADUMP}" -mtime +2 2>/dev/null)"
-
- # Throw away cached image if it doesn't match our spec.
case "${FSTYP}" in
"ext4")
extra_descr="LOGDEV ${SCRATCH_LOGDEV} USE_EXTERNAL ${USE_EXTERNAL}"
- # ext4 cannot e2image external logs, so we cannot restore
- test -n "${SCRATCH_LOGDEV}" && rm -f "${POPULATE_METADUMP}"
;;
"xfs")
extra_descr="LOGDEV ${SCRATCH_LOGDEV} USE_EXTERNAL ${USE_EXTERNAL} RTDEV ${SCRATCH_RTDEV}"
extra_descr="${extra_descr} QUOTAS"
fi
;;
- *)
- extra_descr="";;
esac
- meta_descr="FSTYP ${FSTYP} MKFS_OPTIONS ${MKFS_OPTIONS} SIZE $(blockdev --getsz "${SCRATCH_DEV}") ${extra_descr} ARGS $@"
- cmp -s "${POPULATE_METADUMP_DESCR}" <(echo "${meta_descr}") || rm -rf "${POPULATE_METADUMP}"
-
- # Do we have a cached image?
- if [ -r "${POPULATE_METADUMP}" ]; then
- case "${FSTYP}" in
- "xfs")
- xfs_mdrestore "${POPULATE_METADUMP}" "${SCRATCH_DEV}" && return
- ;;
- "ext2"|"ext3"|"ext4")
- e2image -r "${POPULATE_METADUMP}" "${SCRATCH_DEV}" && return
- ;;
- esac
- fi
+ echo "FSTYP ${FSTYP} MKFS_OPTIONS ${MKFS_OPTIONS} SIZE ${size} ${extra_descr} ARGS $@"
+}
+
+# Restore a cached populated fs from a metadata dump
+_scratch_populate_restore_cached() {
+ local metadump="$1"
+
+ case "${FSTYP}" in
+ "xfs")
+ xfs_mdrestore "${metadump}" "${SCRATCH_DEV}" && return 0
+ ;;
+ "ext2"|"ext3"|"ext4")
+ # ext4 cannot e2image external logs, so we cannot restore
+ test -n "${SCRATCH_LOGDEV}" && return 1
+ e2image -r "${metadump}" "${SCRATCH_DEV}" && return 0
+ ;;
+ esac
+ return 1
+}
+
+# Populate a scratch FS from scratch or from a cached image.
+_scratch_populate_cached() {
+ local meta_descr="$(_scratch_populate_cache_tag "$@")"
+ local meta_tag="$(echo "${meta_descr}" | md5sum - | cut -d ' ' -f 1)"
+ local metadump_stem="${TEST_DIR}/__populate.${FSTYP}.${meta_tag}"
+
+ # These variables are shared outside this function
+ POPULATE_METADUMP="${metadump_stem}.metadump"
+ POPULATE_METADUMP_DESCR="${metadump_stem}.txt"
+
+ # Don't keep metadata images cached for more 48 hours...
+ rm -rf "$(find "${POPULATE_METADUMP}" -mtime +2 2>/dev/null)"
+
+ # Throw away cached image if it doesn't match our spec.
+ cmp -s "${POPULATE_METADUMP_DESCR}" <(echo "${meta_descr}") || \
+ rm -rf "${POPULATE_METADUMP}"
+
+ # Try to restore from the metadump
+ test -r "${POPULATE_METADUMP}" && \
+ _scratch_populate_restore_cached "${POPULATE_METADUMP}" && \
+ return
# Oh well, just create one from scratch
_scratch_mkfs
projects / xfstests-dev.git / blobdiff