mirror of
https://github.com/eledio-devices/thirdparty-littlefs.git
synced 2025-10-31 16:14:16 +01:00
fd1da602d7
This provides a limited form of wear leveling. While wear is not actually balanced across blocks, the filesystem can recover from corrupted blocks and extend the lifetime of a device nearly as much as dynamic wear leveling. For use-cases where wear is important, it would be better to use a full form of dynamic wear-leveling at the block level. (or consider a logging filesystem). Corrupted block handling was simply added on top of the existing logic in place for the filesystem, so it's a bit more noodly than it may have to be, but it gets the work done.
50 lines
943 B
Bash
Executable File
50 lines
943 B
Bash
Executable File
#!/bin/bash
|
|
set -eu
|
|
|
|
echo "=== Formatting tests ==="
|
|
rm -rf blocks
|
|
|
|
echo "--- Basic formatting ---"
|
|
tests/test.py << TEST
|
|
lfs_format(&lfs, &cfg) => 0;
|
|
TEST
|
|
|
|
echo "--- Invalid superblocks ---"
|
|
ln -f -s /dev/zero blocks/0
|
|
ln -f -s /dev/zero blocks/1
|
|
tests/test.py << TEST
|
|
lfs_format(&lfs, &cfg) => LFS_ERR_CORRUPT;
|
|
TEST
|
|
rm blocks/0 blocks/1
|
|
|
|
echo "--- Basic mounting ---"
|
|
tests/test.py << TEST
|
|
lfs_format(&lfs, &cfg) => 0;
|
|
TEST
|
|
tests/test.py << TEST
|
|
lfs_mount(&lfs, &cfg) => 0;
|
|
lfs_unmount(&lfs) => 0;
|
|
TEST
|
|
|
|
echo "--- Invalid mount ---"
|
|
tests/test.py << TEST
|
|
lfs_format(&lfs, &cfg) => 0;
|
|
TEST
|
|
rm blocks/0 blocks/1
|
|
tests/test.py << TEST
|
|
lfs_mount(&lfs, &cfg) => LFS_ERR_CORRUPT;
|
|
TEST
|
|
|
|
echo "--- Valid corrupt mount ---"
|
|
tests/test.py << TEST
|
|
lfs_format(&lfs, &cfg) => 0;
|
|
TEST
|
|
rm blocks/0
|
|
tests/test.py << TEST
|
|
lfs_mount(&lfs, &cfg) => 0;
|
|
lfs_unmount(&lfs) => 0;
|
|
TEST
|
|
|
|
echo "--- Results ---"
|
|
tests/stats.py
|