linux-ext4 - Re: [PATCH 5/7] tests: Modify f_large_dir test to excercise indexed dir handling

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Date:   Tue, 18 Feb 2020 13:29:56 -0700
From:   Andreas Dilger <adilger@...ger.ca>
To:     Jan Kara <jack@...e.cz>
Cc:     Ted Tso <tytso@....edu>, linux-ext4@...r.kernel.org
Subject: Re: [PATCH 5/7] tests: Modify f_large_dir test to excercise indexed
 dir handling

On Feb 13, 2020, at 3:16 AM, Jan Kara <jack@...e.cz> wrote:
> 
> Modify f_large_dir test to create indexed directory and create entries
> in it. That way the new code in ext2fs_link() for addition of entries
> into indexed directories gets executed including various special cases
> when growing htree.
> 
> Signed-off-by: Jan Kara <jack@...e.cz>

Reviewed-by: Andreas Dilger <adilger@...ger.ca>

> ---
> tests/f_large_dir/expect | 10 ++++++++++
> tests/f_large_dir/script | 27 ++++++++++++++++++++++-----
> 2 files changed, 32 insertions(+), 5 deletions(-)
> 
> diff --git a/tests/f_large_dir/expect b/tests/f_large_dir/expect
> index 8f7d99dc1ee7..028234cc6bb5 100644
> --- a/tests/f_large_dir/expect
> +++ b/tests/f_large_dir/expect
> @@ -6,6 +6,16 @@ Allocating group tables:      .....done
> Writing inode tables:      .....done
> Writing superblocks and filesystem accounting information:      .....done
> 
> +Pass 1: Checking inodes, blocks, and sizes
> +Pass 2: Checking directory structure
> +Pass 3: Checking directory connectivity
> +Pass 3A: Optimizing directories
> +Pass 4: Checking reference counts
> +Pass 5: Checking group summary information
> +
> +test.img: ***** FILE SYSTEM WAS MODIFIED *****
> +test.img: 17/65072 files (5.9% non-contiguous), 9732/108341 blocks
> +Exit status is 0
> Pass 1: Checking inodes, blocks, and sizes
> Pass 2: Checking directory structure
> Pass 3: Checking directory connectivity
> diff --git a/tests/f_large_dir/script b/tests/f_large_dir/script
> index 9af042ca6ca8..e3235836f997 100644
> --- a/tests/f_large_dir/script
> +++ b/tests/f_large_dir/script
> @@ -26,17 +26,33 @@ $MKE2FS -b 1024 -O large_dir,uninit_bg -N $((ENTRIES + 50)) \
> RC=$?
> if [ $RC -eq 0 ]; then
> {
> -	START=$SECONDS
> +	# First some initial fs setup to create indexed dir
> 	echo "mkdir /foo"
> 	echo "cd /foo"
> 	touch $TMPFILE.tmp
> 	echo "write $TMPFILE.tmp foofile"
> 	i=0
> -	last=0
> +	while test $i -lt $DIRENT_PER_LEAF ; do
> +		printf "mkdir d%0254u\n" $i
> +		i=$((i + 1));
> +	done
> +	echo "expand ./"
> +	printf "mkdir d%0254u\n" $i
> +} | $DEBUGFS -w $TMPFILE > /dev/null 2>> $OUT.new
> +	RC=$?
> +	# e2fsck should optimize the dir to become indexed
> +	$E2FSCK -yfD $TMPFILE >> $OUT.new 2>&1
> +	status=$?
> +	echo Exit status is $status >> $OUT.new
> +fi
> +
> +if [ $RC -eq 0 ]; then
> +{
> +	START=$SECONDS
> +	i=$(($DIRENT_PER_LEAF+1))
> +	last=$i
> +	echo "cd /foo"
> 	while test $i -lt $ENTRIES ; do
> -	    if test $((i % DIRENT_PER_LEAF)) -eq 0; then
> -	    	echo "expand ./"
> -	    fi
> 	    ELAPSED=$((SECONDS - START))
> 	    if test $((i % 5000)) -eq 0 -a $ELAPSED -gt 10; then
> 		RATE=$(((i - last) / ELAPSED))
> @@ -54,6 +70,7 @@ if [ $RC -eq 0 ]; then
> } | $DEBUGFS -w $TMPFILE > /dev/null 2>> $OUT.new
> 	RC=$?
> fi
> +
> if [ $RC -eq 0 ]; then
> 	$E2FSCK -yfD $TMPFILE >> $OUT.new 2>&1
> 	status=$?
> --
> 2.16.4
> 


Cheers, Andreas






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