virfile: Rework virFileIsSharedFixFUSE
There are couple of things wrong with the current implementation. The first one is that in the first loop the code tries to build a list of fuse.glusterfs mount points. Well, since the strings are allocated in a temporary buffer and are not duplicated this results in wrong decision made later in the code. The second problem is that the code does not take into account subtree mounts. For instance, if there's a fuse.gluster mounted at /some/path and another FS mounted at /some/path/subdir the code would not recognize this subdir mount. Reported-by: NHan Han <hhan@redhat.com> Signed-off-by: NMichal Privoznik <mprivozn@redhat.com> Reviewed-by: NJiri Denemark <jdenemar@redhat.com>
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