Re: [PATCH 2/2] ext2: Avoid rec_len overflow with 64KB block size

Christoph Lameter
2007-10-18T09:03:40Z

On Wed, 17 Oct 2007, Andrew Morton wrote:

> b) what happens when an old ext2 driver tries to read and/or write this
> directory entry? Do we need a compat flag for it?

Old ext2 only supports up to 4k

include/linux/ext2_fs.h:

#define EXT2_MIN_BLOCK_SIZE 1024
#define EXT2_MAX_BLOCK_SIZE 4096
#define EXT2_MIN_BLOCK_LOG_SIZE 10

Should fail to mount the volume since the block size is too large.