+check_filefrag_77n() {
+ local nr_ext=0
+ local starts=()
+ local ends=()
+
+ while read extidx a b start end rest; do
+ if [[ "${extidx}" =~ ^[0-9]+: ]]; then
+ nr_ext=$(( $nr_ext + 1 ))
+ starts+=( ${start%..} )
+ ends+=( ${end%:} )
+ fi
+ done < <( filefrag -sv $1 )
+
+ [[ $nr_ext -eq 2 ]] && [[ "${starts[-1]}" == $(( ${ends[0]} + 1 )) ]] && return 0
+ return 1
+}
+
+test_77n() {
+ [[ "$CKSUM_TYPES" =~ t10 ]] || skip "no T10 checksum support on osc"
+
+ touch $DIR/$tfile
+ $TRUNCATE $DIR/$tfile 0
+ dd if=/dev/urandom of=$DIR/$tfile bs=4k conv=notrunc count=1 seek=0
+ dd if=/dev/urandom of=$DIR/$tfile bs=4k conv=notrunc count=1 seek=2
+ check_filefrag_77n $DIR/$tfile ||
+ skip "$tfile blocks not contiguous around hole"
+
+ set_checksums 1
+ stack_trap "set_checksums $ORIG_CSUM" EXIT
+ stack_trap "set_checksum_type $ORIG_CSUM_TYPE" EXIT
+ stack_trap "rm -f $DIR/$tfile"
+
+ for algo in $CKSUM_TYPES; do
+ if [[ "$algo" =~ ^t10 ]]; then
+ set_checksum_type $algo ||
+ error "fail to set checksum type $algo"
+ dd if=$DIR/$tfile of=/dev/null bs=12k count=1 iflag=direct ||
+ error "fail to read $tfile with $algo"
+ fi
+ done
+ rm -f $DIR/$tfile
+ return 0
+}
+run_test 77n "Verify read from a hole inside contiguous blocks with T10PI"
+