1 #!/bin/bash 2 3 FSCK_OPT="-fyvD" 4 . $cmd_dir/run_e2fsck 5 rm -f $TMPFILE 6 7 exit 0 8 # This script depends on "mke2fs -d", which is only in master and not maint, 9 # to populate the file directory tree poorly (namely that there are no 10 # contiguous blocks in the directory leaf and the extent tree is large). 11 12 # Once the "mke2fs -d" option is available on the "maint" branch, the 13 # above few lines should be deleted, along with the "image.gz" file. 14 15 TMPDIR=${TMPDIR:-"/tmp"} 16 OUT=$test_name.log 17 18 FSCK_OPT="-fyvD" 19 SKIP_GUNZIP="true" 20 21 NAMELEN=250 22 SRC=$TMPDIR/$test_name.tmp 23 SUB=subdir 24 BASE=$SRC/$SUB/$(yes | tr -d '\n' | dd bs=$NAMELEN count=1 2> /dev/null) 25 TMPFILE=${TMPFILE:-"$TMPDIR/image"} 26 BSIZE=1024 27 28 > $OUT 29 mkdir -p $SRC/$SUB 30 # calculate the number of files needed to create the directory extent tree 31 # deep enough to exceed the in-inode index and spill into an index block. 32 # 33 # dirents per block * extents per block * (index blocks > i_blocks) 34 NUM=$(((BSIZE / (NAMELEN + 8)) * (BSIZE / 12) * 2)) 35 # Create source files. Unfortunately hard links will be copied as links, 36 # and blocks with only NULs will be turned into holes. 37 if [ ! -f $BASE.1 ]; then 38 for N in $(seq $NUM); do 39 echo "foo" > $BASE.$N 40 done >> $OUT 41 fi 42 43 # make filesystem with enough inodes and blocks to hold all the test files 44 > $TMPFILE 45 NUM=$((NUM * 5 / 3)) 46 echo "mke2fs -b $BSIZE -O dir_index,extent -d$SRC -N$NUM $TMPFILE $NUM" >> $OUT 47 $MKE2FS -b $BSIZE -O dir_index,extent -d$SRC -N$NUM $TMPFILE $NUM >> $OUT 2>&1 48 rm -r $SRC 49 50 # Run e2fsck to convert dir to htree before deleting the files, as mke2fs 51 # doesn't do this. Run second e2fsck to verify there is no corruption yet. 52 ( 53 EXP1=$test_dir/expect.pre.1 54 EXP2=$test_dir/expect.pre.2 55 OUT1=$test_name.pre.1.log 56 OUT2=$test_name.pre.2.log 57 DESCRIPTION="$(cat $test_dir/name) setup" 58 . $cmd_dir/run_e2fsck 59 ) 60 61 # generate a list of filenames for debugfs to delete, one from each leaf block 62 DELETE_LIST=$TMPDIR/delete.$$ 63 $DEBUGFS -c -R "htree subdir" $TMPFILE 2>> $OUT | 64 grep -A2 "Reading directory block" | 65 awk '/yyyyy/ { print "rm '$SUB'/"$4 }' > $DELETE_LIST 66 $DEBUGFS -w -f $DELETE_LIST $TMPFILE >> $OUT 2>&1 67 rm $DELETE_LIST 68 cp $TMPFILE $TMPFILE.sav 69 70 . $cmd_dir/run_e2fsck 71
