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mm/page_alloc.c: cleanup add_active_range() related comments

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add_active_range() has been repalced by memblock_set_node().  Clean up the
comments to comply with that change.

Signed-off-by: Zhang Zhen <zhenzhang.zhang@huawei.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Zhang Zhen 2014-06-04 16:10:53 -07:00 committed by Linus Torvalds
parent daa5ba768b
commit 7d018176e6
1 changed files with 8 additions and 13 deletions
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21
mm/page_alloc.c
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@ -4387,9 +4387,6 @@ int __meminit init_currently_empty_zone(struct zone *zone,
#ifndef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
/*
* Required by SPARSEMEM. Given a PFN, return what node the PFN is on.
* Architectures may implement their own version but if add_active_range()
* was used and there are no special requirements, this is a convenient
* alternative
*/
int __meminit __early_pfn_to_nid(unsigned long pfn)
{
@ -4444,10 +4441,9 @@ bool __meminit early_pfn_in_nid(unsigned long pfn, int node)
* @nid: The node to free memory on. If MAX_NUMNODES, all nodes are freed.
* @max_low_pfn: The highest PFN that will be passed to memblock_free_early_nid
*
* If an architecture guarantees that all ranges registered with
* add_active_ranges() contain no holes and may be freed, this
* this function may be used instead of calling memblock_free_early_nid()
* manually.
* If an architecture guarantees that all ranges registered contain no holes
* and may be freed, this this function may be used instead of calling
* memblock_free_early_nid() manually.
*/
void __init free_bootmem_with_active_regions(int nid, unsigned long max_low_pfn)
{
@ -4469,9 +4465,8 @@ void __init free_bootmem_with_active_regions(int nid, unsigned long max_low_pfn)
* sparse_memory_present_with_active_regions - Call memory_present for each active range
* @nid: The node to call memory_present for. If MAX_NUMNODES, all nodes will be used.
*
* If an architecture guarantees that all ranges registered with
* add_active_ranges() contain no holes and may be freed, this
* function may be used instead of calling memory_present() manually.
* If an architecture guarantees that all ranges registered contain no holes and may
* be freed, this function may be used instead of calling memory_present() manually.
*/
void __init sparse_memory_present_with_active_regions(int nid)
{
@ -4489,7 +4484,7 @@ void __init sparse_memory_present_with_active_regions(int nid)
* @end_pfn: Passed by reference. On return, it will have the node end_pfn.
*
* It returns the start and end page frame of a node based on information
* provided by an arch calling add_active_range(). If called for a node
* provided by memblock_set_node(). If called for a node
* with no available memory, a warning is printed and the start and end
* PFNs will be 0.
*/
@ -5066,7 +5061,7 @@ static unsigned long __init find_min_pfn_for_node(int nid)
* find_min_pfn_with_active_regions - Find the minimum PFN registered
*
* It returns the minimum PFN based on information provided via
* add_active_range().
* memblock_set_node().
*/
unsigned long __init find_min_pfn_with_active_regions(void)
{
@ -5287,7 +5282,7 @@ static void check_for_memory(pg_data_t *pgdat, int nid)
* @max_zone_pfn: an array of max PFNs for each zone
*
* This will call free_area_init_node() for each active node in the system.
* Using the page ranges provided by add_active_range(), the size of each
* Using the page ranges provided by memblock_set_node(), the size of each
* zone in each node and their holes is calculated. If the maximum PFN
* between two adjacent zones match, it is assumed that the zone is empty.
* For example, if arch_max_dma_pfn == arch_max_dma32_pfn, it is assumed