tree 91bafee58d39bf8b75a6f6aa81ad553d5b389dcb
parent 45ff350bbd9d0f0977ff270a0d427c71520c0c37
author Miklos Szeredi <mszeredi@redhat.com> 1532614391 +0200
committer Miklos Szeredi <mszeredi@redhat.com> 1532614391 +0200

fuse: umount should wait for all requests

fuse_abort_conn() does not guarantee that all async requests have actually
finished aborting (i.e. their ->end() function is called).  This could
actually result in still used inodes after umount.

Add a helper to wait until all requests are fully done.  This is done by
looking at the "num_waiting" counter.  When this counter drops to zero, we
can be sure that no more requests are outstanding.

Fixes: 0d8e84b0432b ("fuse: simplify request abort")
Cc: <stable@vger.kernel.org> # v4.2
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>