mirror of
https://github.com/kdave/btrfs-progs
synced 2024-12-12 01:16:13 +00:00
1c557766d2
The new test case will test whether btrfs-convert can handle 64G ext* fs. This exercise the cctx->total_bytes calculation where multiplying 4K (unsigned int) and 16777216 (u32) could lead to bit overflow for unsigned int and got 0, and screw up later free space calculation. Signed-off-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
20 lines
508 B
Bash
Executable File
20 lines
508 B
Bash
Executable File
#!/bin/bash
|
|
# Check if btrfs-convert can handle an ext4 fs whose size is 64G.
|
|
# That fs size could trigger a multiply overflow and screw up free space
|
|
# calculation
|
|
|
|
source "$TEST_TOP/common"
|
|
source "$TEST_TOP/common.convert"
|
|
|
|
setup_root_helper
|
|
prepare_test_dev 64g
|
|
check_prereq btrfs-convert
|
|
check_global_prereq mke2fs
|
|
|
|
convert_test_prep_fs ext4 mke2fs -t ext4 -b 4096
|
|
run_check_umount_test_dev
|
|
|
|
# Unpatched btrfs-convert would fail half way due to corrupted free space
|
|
# cache tree
|
|
convert_test_do_convert
|