Fixed a bug in FreeBuffer by replacing metadata_size with metadata_offset in the calculation of SLAB_START.
Fixed a bug in FreeBuffer by replacing metadata_size with metadata_offset in the calculation of SLAB_START.

git-svn-id: e73c8432560a29173e2a5a19c6413d8f5aa32dee@170 78f6c469-4e3a-0410-bca2-dfd793a85426

samueldotj/AceOS,samueldotj/AceOS,samueldotj/AceOS,samueldotj/AceOS