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xfs/278: find sfdir inode field prefix

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Use the xfs set/get metadata field helpers to detect the correct sfdir
field name prefix on v4-v5 filesystems.  This enables us to test inode
link count corrections on a (deliberately) disconnected directory.

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>
This commit is contained in:
Darrick J. Wong
2018-03-23 09:54:47 -07:00
committed by Eryu Guan
parent e873eb9857
commit d75c76f63d
1 changed files with 30 additions and 8 deletions
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tests/xfs/278
+30 -8
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@@ -61,17 +61,39 @@ _scratch_unmount
echo "Silence is goodness..."
get_sfdir_prefix() {
local dir_ino="$1"
for prefix in "u.sfdir3" "u.sfdir2" "u3.sfdir3"; do
if [ -n "$(_scratch_xfs_get_metadata_field \
"${prefix}.hdr.parent.i4" \
"inode ${dir_ino}")" ]; then
echo "${prefix}"
return 0
fi
done
_scratch_xfs_db -c "inode ${dir_ino}" -c 'p' >> $seqres.full
return 1
}
set_ifield() {
_scratch_xfs_set_metadata_field "$1" 0 "inode $2" >> $seqres.full
}
sfdir_prefix="$(get_sfdir_prefix "$DIR_INO" || \
_fail "Cannot determine sfdir prefix")"
# Corrupt DIR
_scratch_xfs_db -x -c "inode $DIR_INO" -c "write u.sfdir2.list[0].inumber.i4 0" >> $seqres.full
_scratch_xfs_db -x -c "inode $DIR_INO" -c "write u.sfdir2.list[0].name 0" >> $seqres.full
_scratch_xfs_db -x -c "inode $DIR_INO" -c "write u.sfdir2.list[0].offset 0" >> $seqres.full
_scratch_xfs_db -x -c "inode $DIR_INO" -c "write u.sfdir2.list[0].namelen 0" >> $seqres.full
_scratch_xfs_db -x -c "inode $DIR_INO" -c "write u.sfdir2.hdr.parent.i4 0" >> $seqres.full
_scratch_xfs_db -x -c "inode $DIR_INO" -c "write core.nlinkv2 0" >> $seqres.full
set_ifield "${sfdir_prefix}.list[0].inumber.i4" "$DIR_INO"
set_ifield "${sfdir_prefix}.list[0].name" "$DIR_INO"
set_ifield "${sfdir_prefix}.list[0].offset" "$DIR_INO"
set_ifield "${sfdir_prefix}.list[0].namelen" "$DIR_INO"
set_ifield "${sfdir_prefix}.hdr.parent.i4" "$DIR_INO"
set_ifield "core.nlinkv2" "$DIR_INO"
# Corrupt SUBDIR
_scratch_xfs_db -x -c "inode $SUBDIR_INO" -c "write u.sfdir2.hdr.parent.i4 0" >> $seqres.full
_scratch_xfs_db -x -c "inode $SUBDIR_INO" -c "write core.nlinkv2 0" >> $seqres.full
set_ifield "${sfdir_prefix}.hdr.parent.i4" "$SUBDIR_INO"
set_ifield "core.nlinkv2" "$SUBDIR_INO"
echo "===== BEGIN of xfs_repair =====" >> $seqres.full
echo "" >>$seqres.full