[fuse-devel] Why does FUSE-lib do both mount() system call & exec("/bin/mount") in mount.c?

[Yunis M. <yu...@gm...>]

In mount.c of fuse-lib, during mounting of a partition, the code does both
of the following in that order:

1. call mount() system call
2. exec("/bin/mount")

Why does both of these have to be done? Why can't it be done in one step
either with the mount() system call or the /bin/mount?

I am trying to understand how fuse-lib and fuse-kernel components interact &
work - as part of an analysis we are doing for a user-level file system