diff options
| author | Tejun Heo | 2011-05-02 14:18:54 +0200 |
|---|---|---|
| committer | Tejun Heo | 2011-05-02 14:18:54 +0200 |
| commit | 99cca492ea8ced305bfd687521ed69fb9e0147aa (patch) | |
| tree | 807f087f54f799051114925d50643ca18a950f45 /arch/x86/mm | |
| parent | 38f3e1ca24cc3ec416855e02676f91c898a8a262 (diff) | |
x86-32, NUMA: Add @start and @end to init_alloc_remap()
Instead of dereferencing node_start/end_pfn[] directly, make
init_alloc_remap() take @start and @end and let the caller be
responsible for making sure the range is sane. This is to prepare for
use from unified NUMA init code.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Diffstat (limited to 'arch/x86/mm')
| -rw-r--r-- | arch/x86/mm/numa_32.c | 29 |
1 files changed, 14 insertions, 15 deletions
diff --git a/arch/x86/mm/numa_32.c b/arch/x86/mm/numa_32.c index 975a76f622ba..900863204be2 100644 --- a/arch/x86/mm/numa_32.c +++ b/arch/x86/mm/numa_32.c @@ -265,8 +265,10 @@ void resume_map_numa_kva(pgd_t *pgd_base) * opportunistically and the callers will fall back to other memory * allocation mechanisms on failure. */ -static __init void init_alloc_remap(int nid) +static __init void init_alloc_remap(int nid, u64 start, u64 end) { + unsigned long start_pfn = start >> PAGE_SHIFT; + unsigned long end_pfn = end >> PAGE_SHIFT; unsigned long size, pfn; u64 node_pa, remap_pa; void *remap_va; @@ -276,24 +278,15 @@ static __init void init_alloc_remap(int nid) * memory could be added but not currently present. */ printk(KERN_DEBUG "node %d pfn: [%lx - %lx]\n", - nid, node_start_pfn[nid], node_end_pfn[nid]); - if (node_start_pfn[nid] > max_pfn) - return; - if (!node_end_pfn[nid]) - return; - if (node_end_pfn[nid] > max_pfn) - node_end_pfn[nid] = max_pfn; + nid, start_pfn, end_pfn); /* calculate the necessary space aligned to large page size */ - size = node_memmap_size_bytes(nid, node_start_pfn[nid], - min(node_end_pfn[nid], max_pfn)); + size = node_memmap_size_bytes(nid, start_pfn, end_pfn); size += ALIGN(sizeof(pg_data_t), PAGE_SIZE); size = ALIGN(size, LARGE_PAGE_BYTES); /* allocate node memory and the lowmem remap area */ - node_pa = memblock_find_in_range(node_start_pfn[nid] << PAGE_SHIFT, - (u64)node_end_pfn[nid] << PAGE_SHIFT, - size, LARGE_PAGE_BYTES); + node_pa = memblock_find_in_range(start, end, size, LARGE_PAGE_BYTES); if (node_pa == MEMBLOCK_ERROR) { pr_warning("remap_alloc: failed to allocate %lu bytes for node %d\n", size, nid); @@ -391,8 +384,14 @@ void __init initmem_init(void) get_memcfg_numa(); numa_init_array(); - for_each_online_node(nid) - init_alloc_remap(nid); + for_each_online_node(nid) { + u64 start = (u64)node_start_pfn[nid] << PAGE_SHIFT; + u64 end = min((u64)node_end_pfn[nid] << PAGE_SHIFT, + (u64)max_pfn << PAGE_SHIFT); + + if (start < end) + init_alloc_remap(nid, start, end); + } #ifdef CONFIG_HIGHMEM highstart_pfn = highend_pfn = max_pfn; |