tree 6cf3aec53c0b8639523e238a33de9319dd48df51
parent 8cf2b451f43d77fc68d0511a5f70ca6f6d3196e2
author Jens Axboe <axboe@fb.com> 1412047431 -0600
committer Mohamad Ayyash <mkayyash@google.com> 1425693439 -0800

filesetup: fix a bug where we overwrite the set size

For the null io engine, we don't set file sizes. And we should
not overwrite a potentially legitimate o->size, if total_size
is zero.

Signed-off-by: Jens Axboe <axboe@fb.com>