Jan Kara [off-list ref] writes:
I think it can have something to do with the fact that the partition size
is not a multiple of 4k (i.e. expected block size)?
Ahh, yes. Except that ext3 sets the blocksize to 1k by default.
However, I still can't explain why we don't get an error attempting to
access beyond the end of the device. I'll keep digging on that.
BTW: blkdev_max_block() is a terrible name for something that intends to
return size in blocks...
Fully agreed here, and I'll fix that up when I get my head completely
wrapped around this one.
Thanks for taking a look, Jan!
-Jeff