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| author | Theodore Ts'o <tytso@mit.edu> | 2019-11-21 21:09:43 +0300 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2019-12-26 19:28:31 +0300 |
| commit | 46f870d690fecc792a66730dcbbf0aa109f5f9ab (patch) | |
| tree | 0e517f47ca1c5073481e0d8bfc8631f24388dbca /fs/ext4/ialloc.c | |
| parent | 878520ac45f9f698432d4276db3d9144b83931b6 (diff) | |
| download | linux-46f870d690fecc792a66730dcbbf0aa109f5f9ab.tar.xz | |
ext4: simulate various I/O and checksum errors when reading metadata
This allows us to test various error handling code paths
Link: https://lore.kernel.org/r/20191209012317.59398-1-tytso@mit.edu
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/ialloc.c')
| -rw-r--r-- | fs/ext4/ialloc.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index 0151ba8ea439..c66e8f9451a2 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -94,7 +94,8 @@ static int ext4_validate_inode_bitmap(struct super_block *sb, goto verified; blk = ext4_inode_bitmap(sb, desc); if (!ext4_inode_bitmap_csum_verify(sb, block_group, desc, bh, - EXT4_INODES_PER_GROUP(sb) / 8)) { + EXT4_INODES_PER_GROUP(sb) / 8) || + ext4_simulate_fail(sb, EXT4_SIM_IBITMAP_CRC)) { ext4_unlock_group(sb, block_group); ext4_error(sb, "Corrupt inode bitmap - block_group = %u, " "inode_bitmap = %llu", block_group, blk); @@ -192,6 +193,7 @@ ext4_read_inode_bitmap(struct super_block *sb, ext4_group_t block_group) get_bh(bh); submit_bh(REQ_OP_READ, REQ_META | REQ_PRIO, bh); wait_on_buffer(bh); + ext4_simulate_fail_bh(sb, bh, EXT4_SIM_IBITMAP_EIO); if (!buffer_uptodate(bh)) { put_bh(bh); ext4_set_errno(sb, EIO); |