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SubjectRe: [PATCH 14/35] x86, lmb: Add lmb_memory_size()
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On Thu, 2010-05-13 at 17:19 -0700, Yinghai Lu wrote:
> It will return memory size in specified range according to lmb.memory.region
>
> Try to share some code with lmb_free_memory_size() by passing get_free to
> __lmb_memory_size().

Same comments as previous patch.

> Signed-off-by: Yinghai Lu <yinghai@kernel.org>
> ---
> arch/x86/include/asm/lmb.h | 1 +
> arch/x86/mm/lmb.c | 18 +++++++++++++++++-
> 2 files changed, 18 insertions(+), 1 deletions(-)
>
> diff --git a/arch/x86/include/asm/lmb.h b/arch/x86/include/asm/lmb.h
> index 4fb94b5..dd42ac1 100644
> --- a/arch/x86/include/asm/lmb.h
> +++ b/arch/x86/include/asm/lmb.h
> @@ -17,5 +17,6 @@ void lmb_register_active_regions(int nid, unsigned long start_pfn,
> u64 lmb_hole_size(u64 start, u64 end);
> u64 lmb_find_area_node(int nid, u64 start, u64 end, u64 size, u64 align);
> u64 lmb_free_memory_size(u64 addr, u64 limit);
> +u64 lmb_memory_size(u64 addr, u64 limit);
>
> #endif
> diff --git a/arch/x86/mm/lmb.c b/arch/x86/mm/lmb.c
> index 6c69e99..19a5f49 100644
> --- a/arch/x86/mm/lmb.c
> +++ b/arch/x86/mm/lmb.c
> @@ -226,7 +226,7 @@ void __init lmb_to_bootmem(u64 start, u64 end)
> }
> #endif
>
> -u64 __init lmb_free_memory_size(u64 addr, u64 limit)
> +static u64 __init __lmb_memory_size(u64 addr, u64 limit, bool get_free)
> {
> int i, count;
> struct range *range;
> @@ -256,6 +256,10 @@ u64 __init lmb_free_memory_size(u64 addr, u64 limit)
> }
> subtract_range(range, count, 0, addr);
> subtract_range(range, count, limit, -1ULL);
> +
> + /* Subtract lmb.reserved.region in range ? */
> + if (!get_free)
> + goto sort_and_count_them;
> for (i = 0; i < lmb.reserved.cnt; i++) {
> struct lmb_region *r = &lmb.reserved.regions[i];
>
> @@ -268,6 +272,8 @@ u64 __init lmb_free_memory_size(u64 addr, u64 limit)
>
> subtract_range(range, count, final_start, final_end);
> }
> +
> +sort_and_count_them:
> nr_range = clean_sort_range(range, count);
>
> free_size = 0;
> @@ -277,6 +283,16 @@ u64 __init lmb_free_memory_size(u64 addr, u64 limit)
> return free_size << PAGE_SHIFT;
> }
>
> +u64 __init lmb_free_memory_size(u64 addr, u64 limit)
> +{
> + return __lmb_memory_size(addr, limit, true);
> +}
> +
> +u64 __init lmb_memory_size(u64 addr, u64 limit)
> +{
> + return __lmb_memory_size(addr, limit, false);
> +}
> +
> void __init lmb_add_memory(u64 start, u64 end)
> {
> lmb_add_region(&lmb.memory, start, end - start);




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