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powerpc/mm: Cleanup careful_allocation(): consolidate memset()

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Both users of careful_allocation() immediately memset() the
result.  So, just do it in one place.

Also give careful_allocation() a 'z' prefix to bring it in
line with kzmalloc() and friends.

Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Dave Hansen 2008-12-09 08:21:36 +00:00 committed by Benjamin Herrenschmidt
parent 0be210fd66
commit 893473df78
1 changed files with 5 additions and 6 deletions
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11
arch/powerpc/mm/numa.c
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@ -824,7 +824,7 @@ static void __init dump_numa_memory_topology(void)
*
* Returns the virtual address of the memory.
*/
static void __init *careful_allocation(int nid, unsigned long size,
static void __init *careful_zallocation(int nid, unsigned long size,
unsigned long align,
unsigned long end_pfn)
{
@ -864,6 +864,7 @@ static void __init *careful_allocation(int nid, unsigned long size,
dbg("alloc_bootmem %p %lx\n", ret, size);
}
memset(ret, 0, size);
return ret;
}
@ -971,10 +972,9 @@ void __init do_init_bootmem(void)
* previous nodes' bootmem to be initialized and have
* all reserved areas marked.
*/
NODE_DATA(nid) = careful_allocation(nid,
NODE_DATA(nid) = careful_zallocation(nid,
sizeof(struct pglist_data),
SMP_CACHE_BYTES, end_pfn);
memset(NODE_DATA(nid), 0, sizeof(struct pglist_data));
dbg("node %d\n", nid);
dbg("NODE_DATA() = %p\n", NODE_DATA(nid));
@ -990,10 +990,9 @@ void __init do_init_bootmem(void)
dbg("end_paddr = %lx\n", end_pfn << PAGE_SHIFT);
bootmap_pages = bootmem_bootmap_pages(end_pfn - start_pfn);
bootmem_vaddr = careful_allocation(nid,
bootmem_vaddr = careful_zallocation(nid,
bootmap_pages << PAGE_SHIFT,
PAGE_SIZE, end_pfn);
memset(bootmem_vaddr, 0, bootmap_pages << PAGE_SHIFT);
dbg("bootmap_vaddr = %p\n", bootmem_vaddr);
@ -1004,7 +1003,7 @@ void __init do_init_bootmem(void)
free_bootmem_with_active_regions(nid, end_pfn);
/*
* Be very careful about moving this around. Future
* calls to careful_allocation() depend on this getting
* calls to careful_zallocation() depend on this getting
* done correctly.
*/
mark_reserved_regions_for_nid(nid);