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The patch adds fragments caused by rh_alloc_align() back to free list, instead of allocating the whole chunk of memory. This will greatly improve memory utilization managed by rheap. It solves MURAM not enough problem with 3 UCCs enabled on MPC8323. Signed-off-by: Li Yang <[email protected]> Acked-by: Joakim Tjernlund <[email protected]> Signed-off-by: Kumar Gala <[email protected]>