| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2014 Filipe Manana. All Rights Reserved. |
| # |
| # FS QA Test No. btrfs/053 |
| # |
| # Verify that btrfs send is able to replicate xattrs larger than PATH_MAX. |
| # This is possible if the b+tree leaf size is larger than 4Kb (mkfs.btrfs's |
| # default is max(16Kb, PAGE_SIZE) as of btrfs-progs v3.12, and max(4Kb, |
| # PAGE_SIZE in older versions). |
| # |
| # This issue is fixed by the following linux kernel btrfs patch: |
| # |
| # Btrfs: send, use the right limits for xattr names and values |
| # |
| seq=`basename $0` |
| seqres=$RESULT_DIR/$seq |
| echo "QA output created by $seq" |
| |
| tmp=/tmp/$$ |
| status=1 # failure is the default! |
| trap "_cleanup; exit \$status" 0 1 2 3 15 |
| |
| _cleanup() |
| { |
| rm -fr $send_files_dir |
| rm -fr $tmp |
| } |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| . ./common/attr |
| |
| # real QA test starts here |
| _supported_fs btrfs |
| _require_test |
| _require_scratch |
| _require_fssum |
| _require_attrs |
| |
| # max(16384, PAGE_SIZE) is the default leaf/node size on btrfs-progs v3.12+. |
| # Older versions just use max(4096, PAGE_SIZE). |
| # mkfs.btrfs can't create an fs with a leaf/node size smaller than PAGE_SIZE. |
| leaf_size=$(echo -e "16384\n`getconf PAGE_SIZE`" | sort -nr | head -1) |
| |
| send_files_dir=$TEST_DIR/btrfs-test-$seq |
| |
| rm -f $seqres.full |
| rm -fr $send_files_dir |
| mkdir $send_files_dir |
| |
| _scratch_mkfs "-l $leaf_size" >/dev/null 2>&1 |
| _scratch_mount |
| |
| echo "hello world" > $SCRATCH_MNT/foobar |
| |
| $SETFATTR_PROG -n user.xattr_name_1 -v `$PERL_PROG -e 'print "A" x 6000;'` \ |
| $SCRATCH_MNT/foobar |
| |
| _run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap1 |
| run_check $FSSUM_PROG -A -f -w $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1 |
| |
| # Update existing xattr value and add a new xattr too. |
| $SETFATTR_PROG -n user.xattr_name_1 -v `$PERL_PROG -e 'print "Z" x 6666;'` \ |
| $SCRATCH_MNT/foobar |
| $SETFATTR_PROG -n user.xattr_name_2 -v `$PERL_PROG -e 'print "U" x 5555;'` \ |
| $SCRATCH_MNT/foobar |
| |
| _run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap2 |
| run_check $FSSUM_PROG -A -f -w $send_files_dir/2.fssum \ |
| -x $SCRATCH_MNT/mysnap2/mysnap1 $SCRATCH_MNT/mysnap2 |
| |
| _run_btrfs_util_prog send -f $send_files_dir/1.snap $SCRATCH_MNT/mysnap1 |
| _run_btrfs_util_prog send -p $SCRATCH_MNT/mysnap1 -f $send_files_dir/2.snap \ |
| $SCRATCH_MNT/mysnap2 |
| |
| _scratch_unmount |
| _check_scratch_fs |
| |
| _scratch_mkfs "-l $leaf_size" >/dev/null 2>&1 |
| _scratch_mount |
| |
| _run_btrfs_util_prog receive -f $send_files_dir/1.snap $SCRATCH_MNT |
| run_check $FSSUM_PROG -r $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1 |
| |
| _run_btrfs_util_prog receive -f $send_files_dir/2.snap $SCRATCH_MNT |
| run_check $FSSUM_PROG -r $send_files_dir/2.fssum $SCRATCH_MNT/mysnap2 |
| |
| status=0 |
| exit |