• FUJITA Tomonori's avatar
    dma-mapping: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN · a6eb9fe1
    FUJITA Tomonori authored
    Now each architecture has the own dma_get_cache_alignment implementation.
    
    dma_get_cache_alignment returns the minimum DMA alignment.  Architectures
    define it as ARCH_KMALLOC_MINALIGN (it's used to make sure that malloc'ed
    buffer is DMA-safe; the buffer doesn't share a cache with the others).  So
    we can unify dma_get_cache_alignment implementations.
    
    This patch:
    
    dma_get_cache_alignment() needs to know if an architecture defines
    ARCH_KMALLOC_MINALIGN or not (needs to know if architecture has DMA
    alignment restriction).  However, slab.h define ARCH_KMALLOC_MINALIGN if
    architectures doesn't define it.
    
    Let's rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN.
    ARCH_KMALLOC_MINALIGN is used only in the internals of slab/slob/slub
    (except for crypto).
    Signed-off-by: default avatarFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
    Cc: <linux-arch@vger.kernel.org>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    a6eb9fe1
cache.h 972 Bytes