In inode_table_destroy, we iterate through lru and active lists to move the entries to purge list so that they can be destroyed during inode_table_prune. But if used "list_for_each_entry" or "list_for_each_entry_safe" to iterate, we could end up accessing the entries which may have got moved to different(purge) lists in the process and can result in either infinite loop or crash. The safe approach seems to fetch the first entry of the list in each iteration till it gets empty. Change-Id: I24a18881833bd9419c2d8e5e8807bc71ec396479 BUG: 1326627 Signed-off-by: Soumya Koduri <skoduri@redhat.com> Reviewed-on: http://review.gluster.org/13987 Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-by: Niels de Vos <ndevos@redhat.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>