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    Subject[PATCH v2 07/23] mm/memblock: drop WARN and use SMP_CACHE_BYTES as a default alignment
    Date
    From: Grygorii Strashko <grygorii.strashko@ti.com>

    drop WARN and use SMP_CACHE_BYTES as a default alignment in
    memblock_alloc_base_nid() as recommended by Tejun Heo in
    https://lkml.org/lkml/2013/10/13/117.

    Cc: Yinghai Lu <yinghai@kernel.org>
    Cc: Tejun Heo <tj@kernel.org>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
    ---
    mm/memblock.c | 4 ++--
    1 file changed, 2 insertions(+), 2 deletions(-)

    diff --git a/mm/memblock.c b/mm/memblock.c
    index 53da534..1d15e07 100644
    --- a/mm/memblock.c
    +++ b/mm/memblock.c
    @@ -883,8 +883,8 @@ static phys_addr_t __init memblock_alloc_base_nid(phys_addr_t size,
    {
    phys_addr_t found;

    - if (WARN_ON(!align))
    - align = __alignof__(long long);
    + if (!align)
    + align = SMP_CACHE_BYTES;

    /* align @size to avoid excessive fragmentation on reserved array */
    size = round_up(size, align);
    --
    1.7.9.5


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