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[PATCH] x86_64: Try to allocate node memmap near the end of node

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This fixes problems with very large nodes (over 128GB) filling up all of
the first 4GB with their mem_map and not leaving enough space for the
swiotlb.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andi Kleen 2006-03-25 16:31:10 +01:00 • committed by Linus Torvalds
parent bd66334769
commit 267b48014a
3 changed files with 15 additions and 2 deletions
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3
include/linux/bootmem.h
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@ -51,6 +51,9 @@ extern void * __init __alloc_bootmem_low_node(pg_data_t *pgdat,
unsigned long size,
unsigned long align,
unsigned long goal);
extern void * __init __alloc_bootmem_core(struct bootmem_data *bdata,
unsigned long size, unsigned long align, unsigned long goal,
unsigned long limit);
#ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE
extern void __init reserve_bootmem (unsigned long addr, unsigned long size);
#define alloc_bootmem(x) \