generic: regression test of ext4_lblk_t overflow
Append writes to a file with logical block numbers close to 0xffffffff and
observe if a kernel crash is caused by ext4_lblk_t overflow triggering
BUG_ON at ext4_mb_new_inode_pa(). This is a regression test for commit
bc056e7163ac ("ext4: fix BUG in ext4_mb_new_inode_pa() due to overflow")
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Zorro Lang <zlang@redhat.com>
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Zorro Lang <zlang@kernel.org>
2 files changed
