• Christoph Lameter's avatar
    [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 · d3cb4871
    Christoph Lameter authored
    Several counters already have the need to use 64 atomic variables on 64 bit
    platforms (see mm_counter_t in sched.h).  We have to do ugly ifdefs to fall
    back to 32 bit atomic on 32 bit platforms.
    
    The VM statistics patch that I am working on will also make more extensive
    use of atomic64.
    
    This patch introduces a new type atomic_long_t by providing definitions in
    asm-generic/atomic.h that works similar to the c "long" type.  Its 32 bits
    on 32 bit platforms and 64 bits on 64 bit platforms.
    
    Also cleans up the determination of the mm_counter_t in sched.h.
    Signed-off-by: default avatarChristoph Lameter <clameter@sgi.com>
    Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
    d3cb4871
atomic.h 2.86 KB