[PATCH 15/39] lmb: Add lmb_find_area_node()
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From: Yinghai Lu on 9 Apr 2010 02:10 It can be used to find NODE_DATA for numa. Need to make sure early_node_map[] is filled before it is called, otherwise it will fallback to lmb_find_area(), with node range. Signed-off-by: Yinghai Lu <yinghai(a)kernel.org> --- include/linux/lmb.h | 1 + mm/lmb.c | 15 +++++++++++++++ 2 files changed, 16 insertions(+), 0 deletions(-) diff --git a/include/linux/lmb.h b/include/linux/lmb.h index 5dbc4ef..4078825 100644 --- a/include/linux/lmb.h +++ b/include/linux/lmb.h @@ -91,6 +91,7 @@ void lmb_add_memory(u64 start, u64 end); u64 __lmb_find_area(u64 ei_start, u64 ei_last, u64 start, u64 end, u64 size, u64 align); u64 lmb_find_area(u64 start, u64 end, u64 size, u64 align); +u64 lmb_find_area_node(int nid, u64 start, u64 end, u64 size, u64 align); void lmb_to_bootmem(u64 start, u64 end); struct range; diff --git a/mm/lmb.c b/mm/lmb.c index cf0f1c9..d3a58fb 100644 --- a/mm/lmb.c +++ b/mm/lmb.c @@ -791,6 +791,21 @@ u64 __init __weak lmb_find_area(u64 start, u64 end, u64 size, u64 align) return -1ULL; } /* + * Need to call this function after lmb_register_active_regions, + * so early_node_map[] is filled already. + */ +u64 __init lmb_find_area_node(int nid, u64 start, u64 end, u64 size, u64 align) +{ + u64 addr; + addr = find_memory_core_early(nid, size, align, start, end); + if (addr != -1ULL) + return addr; + + /* Fallback, should already have start end within node range */ + return lmb_find_area(start, end, size, align); +} + +/* * Finds an active region in the address range from start_pfn to last_pfn and * returns its range in ei_startpfn and ei_endpfn for the lmb entry. */ -- 1.6.4.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |