1#!/bin/bash 2TMPDIR=${TMPDIR:-"/tmp"} 3OUT=$test_name.log 4 5FSCK_OPT="-fyvD" 6SKIP_GUNZIP="true" 7 8NAMELEN=250 9SRC=$TMPDIR/$test_name.tmp 10SUB=subdir 11BASE=$SRC/$SUB/$(yes | tr -d '\n' | dd bs=$NAMELEN count=1 2> /dev/null) 12TMPFILE=${TMPFILE:-"$TMPDIR/image"} 13BSIZE=1024 14 15> $OUT 16mkdir -p $SRC/$SUB 17# calculate the number of files needed to create the directory extent tree 18# deep enough to exceed the in-inode index and spill into an index block. 19# 20# dirents per block * extents per block * (index blocks > i_blocks) 21NUM=$(((BSIZE / (NAMELEN + 8)) * (BSIZE / 12) * 2)) 22# Create source files. Unfortunately hard links will be copied as links, 23# and blocks with only NULs will be turned into holes. 24if [ ! -f $BASE.1 ]; then 25 for N in $(seq $NUM); do 26 echo "foo" > $BASE.$N 27 done >> $OUT 28fi 29 30# make filesystem with enough inodes and blocks to hold all the test files 31> $TMPFILE 32NUM=$((NUM * 5 / 3)) 33echo "mke2fs -b $BSIZE -O dir_index,extent -E no_copy_xattrs -d$SRC -N$NUM $TMPFILE $NUM" >> $OUT 34$MKE2FS -b $BSIZE -O dir_index,extent -E no_copy_xattrs -d$SRC -N$NUM $TMPFILE $NUM >> $OUT 2>&1 35rm -r $SRC 36 37# Run e2fsck to convert dir to htree before deleting the files, as mke2fs 38# doesn't do this. Run second e2fsck to verify there is no corruption yet. 39( 40 EXP1=$test_dir/expect.pre.1 41 EXP2=$test_dir/expect.pre.2 42 OUT1=$test_name.pre.1.log 43 OUT2=$test_name.pre.2.log 44 DESCRIPTION="$(cat $test_dir/name) setup" 45 . $cmd_dir/run_e2fsck 46) 47 48# generate a list of filenames for debugfs to delete, one from each leaf block 49DELETE_LIST=$TMPDIR/delete.$$ 50$DEBUGFS -c -R "htree subdir" $TMPFILE 2>> $OUT | 51 grep -A2 "Reading directory block" | 52 awk '/yyyyy/ { print "rm '$SUB'/"$4 }' > $DELETE_LIST 53$DEBUGFS -w -f $DELETE_LIST $TMPFILE >> $OUT 2>&1 54rm $DELETE_LIST 55 56. $cmd_dir/run_e2fsck 57