diff options
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/e820_64.c | 8 | ||||
| -rw-r--r-- | arch/x86/kernel/setup_64.c | 3 |
2 files changed, 7 insertions, 4 deletions
diff --git a/arch/x86/kernel/e820_64.c b/arch/x86/kernel/e820_64.c index b74e83b214c..9f65b4cc323 100644 --- a/arch/x86/kernel/e820_64.c +++ b/arch/x86/kernel/e820_64.c @@ -171,12 +171,13 @@ int __init e820_all_mapped(unsigned long start, unsigned long end, } /* - * Find a free area in a specific range. + * Find a free area with specified alignment in a specific range. */ unsigned long __init find_e820_area(unsigned long start, unsigned long end, - unsigned size) + unsigned size, unsigned long align) { int i; + unsigned long mask = ~(align - 1); for (i = 0; i < e820.nr_map; i++) { struct e820entry *ei = &e820.map[i]; @@ -190,7 +191,8 @@ unsigned long __init find_e820_area(unsigned long start, unsigned long end, continue; while (bad_addr(&addr, size) && addr+size <= ei->addr+ei->size) ; - last = PAGE_ALIGN(addr) + size; + addr = (addr + align - 1) & mask; + last = addr + size; if (last > ei->addr + ei->size) continue; if (last > end) diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c index 77fb87bf6e5..18df70c534b 100644 --- a/arch/x86/kernel/setup_64.c +++ b/arch/x86/kernel/setup_64.c @@ -182,7 +182,8 @@ contig_initmem_init(unsigned long start_pfn, unsigned long end_pfn) unsigned long bootmap_size, bootmap; bootmap_size = bootmem_bootmap_pages(end_pfn)<<PAGE_SHIFT; - bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size); + bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size, + PAGE_SIZE); if (bootmap == -1L) panic("Cannot find bootmem map of size %ld\n", bootmap_size); bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, end_pfn); |