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    SubjectRe: [PATCH 11/35] lmb: Add find_memory_core_early()
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    On Thu, 2010-05-13 at 17:19 -0700, Yinghai Lu wrote:
    > According to node range in early_node_map[] with __lmb_find_area
    > to find free range.
    >
    > Will be used by lmb_find_area_node()
    >
    > lmb_find_area_node will be used to find right buffer for NODE_DATA

    The prototype for this has nothing to do in lmb.h under that name at
    least.

    Cheers,
    Ben.

    > Signed-off-by: Yinghai Lu <yinghai@kernel.org>
    > ---
    > include/linux/mm.h | 2 ++
    > mm/page_alloc.c | 29 +++++++++++++++++++++++++++++
    > 2 files changed, 31 insertions(+), 0 deletions(-)
    >
    > diff --git a/include/linux/mm.h b/include/linux/mm.h
    > index fb19bb9..7774e1d 100644
    > --- a/include/linux/mm.h
    > +++ b/include/linux/mm.h
    > @@ -1159,6 +1159,8 @@ extern void free_bootmem_with_active_regions(int nid,
    > unsigned long max_low_pfn);
    > int add_from_early_node_map(struct range *range, int az,
    > int nr_range, int nid);
    > +u64 __init find_memory_core_early(int nid, u64 size, u64 align,
    > + u64 goal, u64 limit);
    > void *__alloc_memory_core_early(int nodeid, u64 size, u64 align,
    > u64 goal, u64 limit);
    > typedef int (*work_fn_t)(unsigned long, unsigned long, void *);
    > diff --git a/mm/page_alloc.c b/mm/page_alloc.c
    > index d03c946..72afd94 100644
    > --- a/mm/page_alloc.c
    > +++ b/mm/page_alloc.c
    > @@ -21,6 +21,7 @@
    > #include <linux/pagemap.h>
    > #include <linux/jiffies.h>
    > #include <linux/bootmem.h>
    > +#include <linux/lmb.h>
    > #include <linux/compiler.h>
    > #include <linux/kernel.h>
    > #include <linux/kmemcheck.h>
    > @@ -3393,6 +3394,34 @@ void __init free_bootmem_with_active_regions(int nid,
    > }
    > }
    >
    > +#ifdef CONFIG_HAVE_LMB
    > +u64 __init find_memory_core_early(int nid, u64 size, u64 align,
    > + u64 goal, u64 limit)
    > +{
    > + int i;
    > +
    > + /* Need to go over early_node_map to find out good range for node */
    > + for_each_active_range_index_in_nid(i, nid) {
    > + u64 addr;
    > + u64 ei_start, ei_last;
    > +
    > + ei_last = early_node_map[i].end_pfn;
    > + ei_last <<= PAGE_SHIFT;
    > + ei_start = early_node_map[i].start_pfn;
    > + ei_start <<= PAGE_SHIFT;
    > + addr = __lmb_find_area(ei_start, ei_last,
    > + goal, limit, size, align);
    > +
    > + if (addr == LMB_ERROR)
    > + continue;
    > +
    > + return addr;
    > + }
    > +
    > + return -1ULL;
    > +}
    > +#endif
    > +
    > int __init add_from_early_node_map(struct range *range, int az,
    > int nr_range, int nid)
    > {




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