##/bin/bash # Routines for populating a scratch fs, and helpers to exercise an FS # once it's been fuzzed. #----------------------------------------------------------------------- # Copyright (c) 2015 Oracle. All Rights Reserved. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 # USA # # Contact information: Silicon Graphics, Inc., 1500 Crittenden Lane, # Mountain View, CA 94043, USA, or: http://www.sgi.com #----------------------------------------------------------------------- _require_populate_commands() { _require_xfs_io_command "falloc" _require_xfs_io_command "fpunch" _require_test_program "punch-alternating" _require_command "$XFS_DB_PROG" "xfs_db" } _require_xfs_db_blocktrash_z_command() { test "${FSTYP}" = "xfs" || _notrun "cannot run xfs_db on ${FSTYP}" $XFS_DB_PROG -x -f -c 'blocktrash -z' "${TEST_DEV}" | grep -q 'nothing on stack' || _notrun "blocktrash -z not supported" } # Attempt to make files of "every" format for data, dirs, attrs etc. # (with apologies to Eric Sandeen for mutating xfser.sh) # Create a large directory __populate_create_dir() { name="$1" nr="$2" missing="$3" mkdir -p "${name}" seq 0 "${nr}" | while read d; do creat=mkdir test "$((d % 20))" -eq 0 && creat=touch $creat "${name}/$(printf "%.08d" "$d")" done test -z "${missing}" && return seq 1 2 "${nr}" | while read d; do rm -rf "${name}/$(printf "%.08d" "$d")" done } # Add a bunch of attrs to a file __populate_create_attr() { name="$1" nr="$2" missing="$3" touch "${name}" seq 0 "${nr}" | while read d; do setfattr -n "user.$(printf "%.08d" "$d")" -v "$(printf "%.08d" "$d")" "${name}" done test -z "${missing}" && return seq 1 2 "${nr}" | while read d; do setfattr -x "user.$(printf "%.08d" "$d")" "${name}" done } # Fill up some percentage of the remaining free space __populate_fill_fs() { dir="$1" pct="$2" test -z "${pct}" && pct=60 mkdir -p "${dir}/test/1" cp -pRdu "${dir}"/S_IFREG* "${dir}/test/1/" SRC_SZ="$(du -ks "${dir}/test/1" | cut -f 1)" FS_SZ="$(( $(stat -f "${dir}" -c '%a * %S') / 1024 ))" NR="$(( (FS_SZ * ${pct} / 100) / SRC_SZ ))" echo "FILL FS" echo "src_sz $SRC_SZ fs_sz $FS_SZ nr $NR" seq 2 "${NR}" | while read nr; do cp -pRdu "${dir}/test/1" "${dir}/test/${nr}" done } # Populate an XFS on the scratch device with (we hope) all known # types of metadata block _scratch_xfs_populate() { fill=1 for arg in $@; do case "${arg}" in "nofill") fill=0;; esac done _scratch_mount blksz="$(stat -f -c '%s' "${SCRATCH_MNT}")" dblksz="$(xfs_info "${SCRATCH_MNT}" | grep naming.*bsize | sed -e 's/^.*bsize=//g' -e 's/\([0-9]*\).*$/\1/g')" leaf_lblk="$((32 * 1073741824 / blksz))" node_lblk="$((64 * 1073741824 / blksz))" # Data: # Fill up the root inode chunk echo "+ fill root ino chunk" seq 1 64 | while read f; do $XFS_IO_PROG -f -c "truncate 0" "${SCRATCH_MNT}/dummy${f}" done # Regular files # - FMT_EXTENTS echo "+ extents file" $XFS_IO_PROG -f -c "pwrite -S 0x61 0 ${blksz}" "${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 "${SCRATCH_MNT}/S_IFREG.FMT_BTREE" # Directories # - INLINE echo "+ inline dir" __populate_create_dir "${SCRATCH_MNT}/S_IFDIR.FMT_INLINE" 1 # - BLOCK echo "+ block dir" __populate_create_dir "${SCRATCH_MNT}/S_IFDIR.FMT_BLOCK" "$((dblksz / 40))" # - LEAF echo "+ leaf dir" __populate_create_dir "${SCRATCH_MNT}/S_IFDIR.FMT_LEAF" "$((dblksz / 12))" # - NODE echo "+ node dir" __populate_create_dir "${SCRATCH_MNT}/S_IFDIR.FMT_NODE" "$((16 * dblksz / 40))" true # - BTREE echo "+ btree dir" __populate_create_dir "${SCRATCH_MNT}/S_IFDIR.FMT_BTREE" "$((128 * dblksz / 40))" true # Symlinks # - FMT_LOCAL echo "+ inline symlink" ln -s target "${SCRATCH_MNT}/S_IFLNK.FMT_LOCAL" # - FMT_EXTENTS echo "+ extents symlink" ln -s "$(perl -e 'print "x" x 1023;')" "${SCRATCH_MNT}/S_IFLNK.FMT_EXTENTS" # Char & block echo "+ special" mknod "${SCRATCH_MNT}/S_IFCHR" c 1 1 mknod "${SCRATCH_MNT}/S_IFBLK" c 1 1 # Attribute formats # LOCAL echo "+ local attr" __populate_create_attr "${SCRATCH_MNT}/ATTR.FMT_LOCAL" 1 # LEAF echo "+ leaf attr" __populate_create_attr "${SCRATCH_MNT}/ATTR.FMT_LEAF" "$((blksz / 40))" # NODE echo "+ node attr" __populate_create_attr "${SCRATCH_MNT}/ATTR.FMT_NODE" "$((8 * blksz / 40))" # BTREE echo "+ btree attr" __populate_create_attr "${SCRATCH_MNT}/ATTR.FMT_BTREE" "$((64 * blksz / 40))" true # FMT_EXTENTS with a remote less-than-a-block value echo "+ attr extents with a remote less-than-a-block value" touch "${SCRATCH_MNT}/ATTR.FMT_EXTENTS_REMOTE3K" $XFS_IO_PROG -f -c "pwrite -S 0x43 0 $((blksz - 300))" "${SCRATCH_MNT}/attrvalfile" > /dev/null attr -q -s user.remotebtreeattrname "${SCRATCH_MNT}/ATTR.FMT_EXTENTS_REMOTE3K" < "${SCRATCH_MNT}/attrvalfile" # FMT_EXTENTS with a remote block-size value echo "+ attr extents with a remote one-block value" touch "${SCRATCH_MNT}/ATTR.FMT_EXTENTS_REMOTE4K" $XFS_IO_PROG -f -c "pwrite -S 0x44 0 ${blksz}" "${SCRATCH_MNT}/attrvalfile" > /dev/null attr -q -s user.remotebtreeattrname "${SCRATCH_MNT}/ATTR.FMT_EXTENTS_REMOTE4K" < "${SCRATCH_MNT}/attrvalfile" rm -rf "${SCRATCH_MNT}/attrvalfile" # Make an unused inode echo "+ empty file" touch "${SCRATCH_MNT}/unused" $XFS_IO_PROG -f -c 'fsync' "${SCRATCH_MNT}/unused" rm -rf "${SCRATCH_MNT}/unused" # Free space btree echo "+ freesp btree" nr="$((blksz * 2 / 8))" $XFS_IO_PROG -f -c "pwrite -S 0x62 0 $((blksz * nr))" "${SCRATCH_MNT}/BNOBT" ./src/punch-alternating "${SCRATCH_MNT}/BNOBT" # Reverse-mapping btree is_rmapbt="$(xfs_info "${SCRATCH_MNT}" | grep -c 'rmapbt=1')" 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 "${SCRATCH_MNT}/RMAPBT" fi # Realtime Reverse-mapping btree is_rt="$(xfs_info "${SCRATCH_MNT}" | grep -c 'rtextents=[1-9]')" 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 "${SCRATCH_MNT}/RTRMAPBT" fi # Reference-count btree is_reflink="$(xfs_info "${SCRATCH_MNT}" | grep -c 'reflink=1')" 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" 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 umount "${SCRATCH_MNT}" } # Populate an ext4 on the scratch device with (we hope) all known # types of metadata block _scratch_ext4_populate() { fill=1 for arg in $@; do case "${arg}" in "nofill") fill=0;; esac done _scratch_mount blksz="$(stat -f -c '%s' "${SCRATCH_MNT}")" dblksz="${blksz}" leaf_lblk="$((32 * 1073741824 / blksz))" node_lblk="$((64 * 1073741824 / blksz))" # Data: # Regular files # - FMT_INLINE echo "+ inline file" $XFS_IO_PROG -f -c "pwrite -S 0x61 0 1" "${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" # - 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 "${SCRATCH_MNT}/S_IFREG.FMT_ETREE" # Directories # - INLINE echo "+ inline dir" __populate_create_dir "${SCRATCH_MNT}/S_IFDIR.FMT_INLINE" 1 # - BLOCK echo "+ block dir" __populate_create_dir "${SCRATCH_MNT}/S_IFDIR.FMT_BLOCK" "$((dblksz / 24))" # - HTREE echo "+ htree dir" __populate_create_dir "${SCRATCH_MNT}/S_IFDIR.FMT_HTREE" "$((4 * dblksz / 24))" # Symlinks # - FMT_LOCAL echo "+ inline symlink" ln -s target "${SCRATCH_MNT}/S_IFLNK.FMT_LOCAL" # - FMT_EXTENTS echo "+ extents symlink" ln -s "$(perl -e 'print "x" x 1023;')" "${SCRATCH_MNT}/S_IFLNK.FMT_EXTENTS" # Char & block echo "+ special" mknod "${SCRATCH_MNT}/S_IFCHR" c 1 1 mknod "${SCRATCH_MNT}/S_IFBLK" c 1 1 # Attribute formats # LOCAL echo "+ local attr" __populate_create_attr "${SCRATCH_MNT}/ATTR.FMT_LOCAL" 1 # BLOCK echo "+ block attr" __populate_create_attr "${SCRATCH_MNT}/ATTR.FMT_BLOCK" "$((blksz / 40))" # Make an unused inode echo "+ empty file" touch "${SCRATCH_MNT}/unused" $XFS_IO_PROG -f -c 'fsync' "${SCRATCH_MNT}/unused" rm -rf "${SCRATCH_MNT}/unused" # Copy some real files (xfs tests, I guess...) echo "+ real files" test $fill -ne 0 && __populate_fill_fs "${SCRATCH_MNT}" 5 umount "${SCRATCH_MNT}" } # Find the inode number of a file __populate_find_inode() { name="$1" inode="$(stat -c '%i' "${name}")" echo "${inode}" } # Check data fork format of XFS file __populate_check_xfs_dformat() { inode="$1" format="$2" fmt="$(_scratch_xfs_db -c "inode ${inode}" -c 'p core.format' | sed -e 's/^.*(\([a-z]*\)).*$/\1/g')" test "${format}" = "${fmt}" || _fail "failed to create ino ${inode} dformat expected ${format} saw ${fmt}" } # Check attr fork format of XFS file __populate_check_xfs_aformat() { inode="$1" format="$2" fmt="$(_scratch_xfs_db -c "inode ${inode}" -c 'p core.aformat' | sed -e 's/^.*(\([a-z]*\)).*$/\1/g')" test "${format}" = "${fmt}" || _fail "failed to create ino ${inode} aformat expected ${format} saw ${fmt}" } # Check structure of XFS directory __populate_check_xfs_dir() { inode="$1" dtype="$2" (test -n "${leaf_lblk}" && test -n "${node_lblk}") || _fail "must define leaf_lblk and node_lblk before calling __populate_check_xfs_dir" datab=0 leafb=0 freeb=0 #echo "== check dir ${inode} type ${dtype}" ; _scratch_xfs_db -x -c "inode ${inode}" -c "bmap" _scratch_xfs_db -x -c "inode ${inode}" -c "dblock 0" -c "stack" | grep -q 'file data block is unmapped' || datab=1 _scratch_xfs_db -x -c "inode ${inode}" -c "dblock ${leaf_lblk}" -c "stack" | grep -q 'file data block is unmapped' || leafb=1 _scratch_xfs_db -x -c "inode ${inode}" -c "dblock ${node_lblk}" -c "stack" | grep -q 'file data block is unmapped' || freeb=1 case "${dtype}" in "shortform"|"inline"|"local") (test "${datab}" -eq 0 && test "${leafb}" -eq 0 && test "${freeb}" -eq 0) || _fail "failed to create ${dtype} dir ino ${inode} datab ${datab} leafb ${leafb} freeb ${freeb}" ;; "block") (test "${datab}" -eq 1 && test "${leafb}" -eq 0 && test "${freeb}" -eq 0) || _fail "failed to create ${dtype} dir ino ${inode} datab ${datab} leafb ${leafb} freeb ${freeb}" ;; "leaf") (test "${datab}" -eq 1 && test "${leafb}" -eq 1 && test "${freeb}" -eq 0) || _fail "failed to create ${dtype} dir ino ${inode} datab ${datab} leafb ${leafb} freeb ${freeb}" ;; "node"|"btree") (test "${datab}" -eq 1 && test "${leafb}" -eq 1 && test "${freeb}" -eq 1) || _fail "failed to create ${dtype} dir ino ${inode} datab ${datab} leafb ${leafb} freeb ${freeb}" ;; *) _fail "Unknown directory type ${dtype}" esac } # Check structure of XFS attr __populate_check_xfs_attr() { inode="$1" atype="$2" datab=0 leafb=0 #echo "== check attr ${inode} type ${dtype}" ; _scratch_xfs_db -x -c "inode ${inode}" -c "bmap -a" _scratch_xfs_db -x -c "inode ${inode}" -c "ablock 0" -c "stack" | grep -q 'file attr block is unmapped' || datab=1 _scratch_xfs_db -x -c "inode ${inode}" -c "ablock 1" -c "stack" | grep -q 'file attr block is unmapped' || leafb=1 case "${atype}" in "shortform"|"inline"|"local") (test "${datab}" -eq 0 && test "${leafb}" -eq 0) || _fail "failed to create ${atype} attr ino ${inode} datab ${datab} leafb ${leafb}" ;; "leaf") (test "${datab}" -eq 1 && test "${leafb}" -eq 0) || _fail "failed to create ${atype} attr ino ${inode} datab ${datab} leafb ${leafb}" ;; "node"|"btree") (test "${datab}" -eq 1 && test "${leafb}" -eq 1) || _fail "failed to create ${atype} attr ino ${inode} datab ${datab} leafb ${leafb}" ;; *) _fail "Unknown attribute type ${atype}" esac } # Check that there's at least one per-AG btree with multiple levels __populate_check_xfs_agbtree_height() { bt_type="$1" nr_ags=$(_scratch_xfs_db -c 'sb 0' -c 'p agcount' | awk '{print $3}') case "${bt_type}" in "bno"|"cnt"|"rmap"|"refcnt") hdr="agf" bt_prefix="${bt_type}" ;; "ino") hdr="agi" bt_prefix="" ;; "fino") hdr="agi" bt_prefix="free_" ;; *) _fail "Don't know about AG btree ${bt_type}" ;; esac seq 0 $((nr_ags - 1)) | while read ag; do bt_level=$(_scratch_xfs_db -c "${hdr} ${ag}" -c "p ${bt_prefix}level" | awk '{print $3}') if [ "${bt_level}" -gt 1 ]; then return 100 fi done test $? -eq 100 || _fail "Failed to create ${bt_type} of sufficient height!" return 1 } # Check that populate created all the types of files we wanted _scratch_xfs_populate_check() { _scratch_mount extents_file="$(__populate_find_inode "${SCRATCH_MNT}/S_IFREG.FMT_EXTENTS")" btree_file="$(__populate_find_inode "${SCRATCH_MNT}/S_IFREG.FMT_BTREE")" inline_dir="$(__populate_find_inode "${SCRATCH_MNT}/S_IFDIR.FMT_INLINE")" block_dir="$(__populate_find_inode "${SCRATCH_MNT}/S_IFDIR.FMT_BLOCK")" leaf_dir="$(__populate_find_inode "${SCRATCH_MNT}/S_IFDIR.FMT_LEAF")" node_dir="$(__populate_find_inode "${SCRATCH_MNT}/S_IFDIR.FMT_NODE")" btree_dir="$(__populate_find_inode "${SCRATCH_MNT}/S_IFDIR.FMT_BTREE")" local_slink="$(__populate_find_inode "${SCRATCH_MNT}/S_IFLNK.FMT_LOCAL")" extents_slink="$(__populate_find_inode "${SCRATCH_MNT}/S_IFLNK.FMT_EXTENTS")" bdev="$(__populate_find_inode "${SCRATCH_MNT}/S_IFBLK")" cdev="$(__populate_find_inode "${SCRATCH_MNT}/S_IFCHR")" local_attr="$(__populate_find_inode "${SCRATCH_MNT}/ATTR.FMT_LOCAL")" leaf_attr="$(__populate_find_inode "${SCRATCH_MNT}/ATTR.FMT_LEAF")" node_attr="$(__populate_find_inode "${SCRATCH_MNT}/ATTR.FMT_NODE")" btree_attr="$(__populate_find_inode "${SCRATCH_MNT}/ATTR.FMT_BTREE")" is_finobt=$(xfs_info "${SCRATCH_MNT}" | grep -c 'finobt=1') is_rmapbt=$(xfs_info "${SCRATCH_MNT}" | grep -c 'rmapbt=1') is_reflink=$(xfs_info "${SCRATCH_MNT}" | grep -c 'reflink=1') blksz="$(stat -f -c '%s' "${SCRATCH_MNT}")" dblksz="$(xfs_info "${SCRATCH_MNT}" | grep naming.*bsize | sed -e 's/^.*bsize=//g' -e 's/\([0-9]*\).*$/\1/g')" leaf_lblk="$((32 * 1073741824 / blksz))" node_lblk="$((64 * 1073741824 / blksz))" umount "${SCRATCH_MNT}" __populate_check_xfs_dformat "${extents_file}" "extents" __populate_check_xfs_dformat "${btree_file}" "btree" __populate_check_xfs_dir "${inline_dir}" "inline" __populate_check_xfs_dir "${block_dir}" "block" __populate_check_xfs_dir "${leaf_dir}" "leaf" __populate_check_xfs_dir "${node_dir}" "node" __populate_check_xfs_dir "${btree_dir}" "btree" __populate_check_xfs_dformat "${btree_dir}" "btree" __populate_check_xfs_dformat "${bdev}" "dev" __populate_check_xfs_dformat "${cdev}" "dev" __populate_check_xfs_attr "${local_attr}" "local" __populate_check_xfs_attr "${leaf_attr}" "leaf" __populate_check_xfs_attr "${node_attr}" "node" __populate_check_xfs_attr "${btree_attr}" "btree" __populate_check_xfs_aformat "${btree_attr}" "btree" __populate_check_xfs_agbtree_height "bno" __populate_check_xfs_agbtree_height "cnt" test $is_rmapbt -ne 0 && __populate_check_xfs_agbtree_height "rmap" test $is_reflink -ne 0 && __populate_check_xfs_agbtree_height "refcnt" } # Check data fork format of ext4 file __populate_check_ext4_dformat() { dev="${SCRATCH_DEV}" inode="$1" format="$2" extents=0 etree=0 debugfs -R "stat <${inode}>" "${dev}" 2> /dev/null | grep 'ETB[0-9]' -q && etree=1 iflags="$(debugfs -R "stat <${inode}>" "${dev}" 2> /dev/null | grep 'Flags:' | sed -e 's/^.*Flags: \([0-9a-fx]*\).*$/\1/g')" test "$(echo "${iflags}" | awk '{print and(strtonum($1), 0x80000);}')" -gt 0 && extents=1 case "${format}" in "blockmap") test "${extents}" -eq 0 || _fail "failed to create ino ${inode} with blockmap" ;; "extent"|"extents") test "${extents}" -eq 1 || _fail "failed to create ino ${inode} with extents" ;; "etree") (test "${extents}" -eq 1 && test "${etree}" -eq 1) || _fail "failed to create ino ${inode} with extent tree" ;; *) _fail "Unknown dformat ${format}" esac } # Check attr fork format of ext4 file __populate_check_ext4_aformat() { dev="${SCRATCH_DEV}" inode="$1" format="$2" ablock=1 debugfs -R "stat <${inode}>" "${dev}" 2> /dev/null | grep 'File ACL: 0' -q && ablock=0 case "${format}" in "local"|"inline") test "${ablock}" -eq 0 || _fail "failed to create inode ${inode} with ${format} xattr" ;; "block") test "${extents}" -eq 1 || _fail "failed to create inode ${inode} with ${format} xattr" ;; *) _fail "Unknown aformat ${format}" esac } # Check structure of ext4 dir __populate_check_ext4_dir() { dev="${SCRATCH_DEV}" inode="$1" dtype="$2" htree=0 inline=0 iflags="$(debugfs -R "stat <${inode}>" "${dev}" 2> /dev/null | grep 'Flags:' | sed -e 's/^.*Flags: \([0-9a-fx]*\).*$/\1/g')" test "$(echo "${iflags}" | awk '{print and(strtonum($1), 0x1000);}')" -gt 0 && htree=1 test "$(echo "${iflags}" | awk '{print and(strtonum($1), 0x10000000);}')" -gt 0 && inline=1 case "${dtype}" in "inline") (test "${inline}" -eq 1 && test "${htree}" -eq 0) || _fail "failed to create ${dtype} dir ino ${inode} htree ${htree} inline ${inline}" ;; "block") (test "${inline}" -eq 0 && test "${htree}" -eq 0) || _fail "failed to create ${dtype} dir ino ${inode} htree ${htree} inline ${inline}" ;; "htree") (test "${inline}" -eq 0 && test "${htree}" -eq 1) || _fail "failed to create ${dtype} dir ino ${inode} htree ${htree} inline ${inline}" ;; *) _fail "Unknown directory type ${dtype}" ;; esac } # Check that populate created all the types of files we wanted _scratch_ext4_populate_check() { _scratch_mount extents_file="$(__populate_find_inode "${SCRATCH_MNT}/S_IFREG.FMT_EXTENTS")" etree_file="$(__populate_find_inode "${SCRATCH_MNT}/S_IFREG.FMT_ETREE")" block_dir="$(__populate_find_inode "${SCRATCH_MNT}/S_IFDIR.FMT_BLOCK")" htree_dir="$(__populate_find_inode "${SCRATCH_MNT}/S_IFDIR.FMT_HTREE")" extents_slink="$(__populate_find_inode "${SCRATCH_MNT}/S_IFLNK.FMT_EXTENTS")" local_attr="$(__populate_find_inode "${SCRATCH_MNT}/ATTR.FMT_LOCAL")" block_attr="$(__populate_find_inode "${SCRATCH_MNT}/ATTR.FMT_BLOCK")" umount "${SCRATCH_MNT}" __populate_check_ext4_dformat "${extents_file}" "extents" __populate_check_ext4_dformat "${etree_file}" "etree" __populate_check_ext4_dir "${block_dir}" "block" __populate_check_ext4_dir "${htree_dir}" "htree" __populate_check_ext4_dformat "${extents_slink}" "extents" __populate_check_ext4_aformat "${local_attr}" "local" __populate_check_ext4_aformat "${block_attr}" "block" } # Populate a scratch FS and check the contents to make sure we got that _scratch_populate() { case "${FSTYP}" in "xfs") _scratch_xfs_populate _scratch_xfs_populate_check ;; "ext2"|"ext3"|"ext4") _scratch_ext4_populate _scratch_ext4_populate_check ;; *) _fail "Don't know how to populate a ${FSTYP} filesystem." ;; esac } # Fill a file system by repeatedly creating files in the given folder # starting with the given file size. Files are reduced in size when # they can no longer fit until no more files can be created. _fill_fs() { local file_size=$1 local dir=$2 local block_size=$3 local switch_user=$4 local file_count=1 local bytes_written=0 local use_falloc=1; if [ $# -ne 4 ]; then echo "Usage: _fill_fs filesize dir blocksize switch_user" exit 1 fi if [ $switch_user -eq 0 ]; then mkdir -p $dir else _user_do "mkdir -p $dir" fi if [ ! -d $dir ]; then return 0; fi testio=`$XFS_IO_PROG -F -fc "falloc 0 $block_size" $dir/$$.xfs_io 2>&1` echo $testio | grep -q "not found" && use_falloc=0 echo $testio | grep -q "Operation not supported" && use_falloc=0 if [ $file_size -lt $block_size ]; then $file_size = $block_size fi while [ $file_size -ge $block_size ]; do bytes_written=0 if [ $switch_user -eq 0 ]; then if [ $use_falloc -eq 0 ]; then $XFS_IO_PROG -fc "pwrite -b 8388608 0 $file_size" \ $dir/$file_count else $XFS_IO_PROG -fc "falloc 0 $file_size" \ $dir/$file_count fi else if [ $use_falloc -eq 0 ]; then _user_do "$XFS_IO_PROG -f -c \"pwrite -b 8388608 0 \ $file_size\" $dir/$file_count" else _user_do "$XFS_IO_PROG -f -c \"falloc 0 \ $file_size\" $dir/$file_count" fi fi if [ -f $dir/$file_count ]; then bytes_written=$(stat -c '%s' $dir/$file_count) fi # If there was no room to make the file, then divide it in # half, and keep going if [ $bytes_written -lt $file_size ]; then file_size=$((file_size / 2)) fi file_count=$((file_count + 1)) done } # Populate a scratch FS from scratch or from a cached image. _scratch_populate_cached() { POPULATE_METADUMP="${TEST_DIR}/__populate.${FSTYP}" POPULATE_METADUMP_DESCR="${TEST_DIR}/__populate.${FSTYP}.txt" # Don't keep metadata images cached for more 48 hours... rm -rf "$(find "${POPULATE_METADUMP}" -mtime +2 2>/dev/null)" # Throw away cached image if it doesn't match our spec. meta_descr="FSTYP ${FSTYP} MKFS_OPTIONS ${MKFS_OPTIONS} SIZE $(blockdev --getsz "${SCRATCH_DEV}") 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 # Oh well, just create one from scratch _scratch_mkfs echo "${meta_descr}" > "${POPULATE_METADUMP_DESCR}" case "${FSTYP}" in "xfs") _scratch_xfs_populate $@ _scratch_xfs_populate_check _scratch_metadump "${POPULATE_METADUMP}" -a -o ;; "ext2"|"ext3"|"ext4") _scratch_ext4_populate $@ _scratch_ext4_populate_check e2image -Q "${SCRATCH_DEV}" "${POPULATE_METADUMP}" ;; *) _fail "Don't know how to populate a ${FSTYP} filesystem." ;; esac }