5c222949b8
If we set dirwidth=1 when defining fileset, run 'filebench -f <wml-test>.f' will cause coredump. Because we set fileset->fs_meandepth in fileset_populate() as follows, $ fileset->fs_meandepth=log(entries+leafdirs)/log(meandirwidth). where meandirwidth is equal to 1 as same with dirwidth in <wml-test>.f. So fileset->fs_meandepth is set to inf, which will cause endless recursion of fileset_populate_subdir(). Finally, coredump occurs. Here, we will use a little bias (0.1) instead of log(1) when meandirwidth is equal to 1. Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com> (cherry picked from commit c417ede6131ab5209beff8e44bf5ec92f5acc26b)