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    Subject[PATCH] alpha: use L1_CACHE_BYTES for cacheline size in the linker script
    Currently the linker script uses 64 for cacheline size which isn't
    optimal for all cases. Include asm/cache.h and use L1_CACHE_BYTES
    instead as suggested by Sam Ravnborg.

    Signed-off-by: Tejun Heo <tj@kernel.org>
    Cc: Sam Ravnborg <sam@ravnborg.org>
    ---
    Does this look okay?

    arch/alpha/kernel/vmlinux.lds.S | 5 +++--
    1 files changed, 3 insertions(+), 2 deletions(-)

    diff --git a/arch/alpha/kernel/vmlinux.lds.S b/arch/alpha/kernel/vmlinux.lds.S
    index 173518f..433be2a 100644
    --- a/arch/alpha/kernel/vmlinux.lds.S
    +++ b/arch/alpha/kernel/vmlinux.lds.S
    @@ -1,5 +1,6 @@
    #include <asm-generic/vmlinux.lds.h>
    #include <asm/thread_info.h>
    +#include <asm/cache.h>
    #include <asm/page.h>

    OUTPUT_FORMAT("elf64-alpha")
    @@ -38,7 +39,7 @@ SECTIONS
    __init_begin = ALIGN(PAGE_SIZE);
    INIT_TEXT_SECTION(PAGE_SIZE)
    INIT_DATA_SECTION(16)
    - PERCPU(64, PAGE_SIZE)
    + PERCPU(L1_CACHE_BYTES, PAGE_SIZE)
    /* Align to THREAD_SIZE rather than PAGE_SIZE here so any padding page
    needed for the THREAD_SIZE aligned init_task gets freed after init */
    . = ALIGN(THREAD_SIZE);
    @@ -46,7 +47,7 @@ SECTIONS
    /* Freed after init ends here */

    _data = .;
    - RW_DATA_SECTION(64, PAGE_SIZE, THREAD_SIZE)
    + RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)

    .got : {
    *(.got)
    --
    1.7.1


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