• Christoph Lameter's avatar
    SLUB: Remove checks for MAX_PARTIAL from kmem_cache_shrink · fcda3d89
    Christoph Lameter authored
    The MAX_PARTIAL checks were supposed to be an optimization. However, slab
    shrinking is a manually triggered process either through running slabinfo
    or by the kernel calling kmem_cache_shrink.
    
    If one really wants to shrink a slab then all operations should be done
    regardless of the size of the partial list. This also fixes an issue that
    could surface if the number of partial slabs was initially above MAX_PARTIAL
    in kmem_cache_shrink and later drops below MAX_PARTIAL through the
    elimination of empty slabs on the partial list (rare). In that case a few
    slabs may be left off the partial list (and only be put back when they
    are empty).
    Signed-off-by: default avatarChristoph Lameter <clameter@sgi.com>
    fcda3d89
slub.c 88.5 KB