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Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/numa: Add constraints check for nid parameters
  mm, x86: Remove debug_pagealloc_enabled
  x86/mm: Initialize high mem before free_all_bootmem()
  arch/x86/kernel/e820.c: quiet sparse noise about plain integer as NULL pointer
  arch/x86/kernel/e820.c: Eliminate bubble sort from sanitize_e820_map()
  x86: Fix mmap random address range
  x86, mm: Unify zone_sizes_init()
  x86, mm: Prepare zone_sizes_init() for unification
  x86, mm: Use max_low_pfn for ZONE_NORMAL on 64-bit
  x86, mm: Wrap ZONE_DMA32 with CONFIG_ZONE_DMA32
  x86, mm: Use max_pfn instead of highend_pfn
  x86, mm: Move zone init from paging_init() on 64-bit
  x86, mm: Use MAX_DMA_PFN for ZONE_DMA on 32-bit
This commit is contained in:
Linus Torvalds
2012-01-11 19:12:10 -08:00
parent 02d929502c 54eed6cb16
commit d0b9706c20
11 changed files with 69 additions and 93 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/x86/mm/init_32.c
+11 -18
View File
@@ -668,22 +668,6 @@ void __init initmem_init(void)
}
#endif /* !CONFIG_NEED_MULTIPLE_NODES */
static void __init zone_sizes_init(void)
{
unsigned long max_zone_pfns[MAX_NR_ZONES];
memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
#ifdef CONFIG_ZONE_DMA
max_zone_pfns[ZONE_DMA] =
virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
#endif
max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
#ifdef CONFIG_HIGHMEM
max_zone_pfns[ZONE_HIGHMEM] = highend_pfn;
#endif
free_area_init_nodes(max_zone_pfns);
}
void __init setup_bootmem_allocator(void)
{
printk(KERN_INFO " mapped low ram: 0 - %08lx\n",
@@ -754,6 +738,17 @@ void __init mem_init(void)
#ifdef CONFIG_FLATMEM
BUG_ON(!mem_map);
#endif
/*
* With CONFIG_DEBUG_PAGEALLOC initialization of highmem pages has to
* be done before free_all_bootmem(). Memblock use free low memory for
* temporary data (see find_range_array()) and for this purpose can use
* pages that was already passed to the buddy allocator, hence marked as
* not accessible in the page tables when compiled with
* CONFIG_DEBUG_PAGEALLOC. Otherwise order of initialization is not
* important here.
*/
set_highmem_pages_init();
/* this will put all low memory onto the freelists */
totalram_pages += free_all_bootmem();
@@ -765,8 +760,6 @@ void __init mem_init(void)
if (page_is_ram(tmp) && PageReserved(pfn_to_page(tmp)))
reservedpages++;
set_highmem_pages_init();
codesize = (unsigned long) &_etext - (unsigned long) &_text;
datasize = (unsigned long) &_edata - (unsigned long) &_etext;
initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;