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mm/sparsemem: cleanup 'section number' data types 

David points out that there is a mixture of 'int' and 'unsigned long'
usage for section number data types.  Update the memory hotplug path to
use 'unsigned long' consistently for section numbers.

[akpm@linux-foundation.org: fix printk format]
Link: http://lkml.kernel.org/r/156107543656.1329419.11505835211949439815.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reported-by: David Hildenbrand <david@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Dan Williams 2019-07-18 15:58:43 -07:00 committed by Linus Torvalds
parent a3619190d6
commit 9a84503042
2 changed files with 9 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
mm/memory_hotplug.c
View File

@ -288,8 +288,8 @@ static int check_pfn_span(unsigned long pfn, unsigned long nr_pages,
int __ref __add_pages(int nid, unsigned long pfn, unsigned long nr_pages,
struct mhp_restrictions *restrictions)
{
unsigned long i;
int start_sec, end_sec, err;
int err;
unsigned long nr, start_sec, end_sec;
struct vmem_altmap *altmap = restrictions->altmap;
if (altmap) {
@ -310,7 +310,7 @@ int __ref __add_pages(int nid, unsigned long pfn, unsigned long nr_pages,
start_sec = pfn_to_section_nr(pfn);
end_sec = pfn_to_section_nr(pfn + nr_pages - 1);
for (i = start_sec; i <= end_sec; i++) {
for (nr = start_sec; nr <= end_sec; nr++) {
unsigned long pfns;
pfns = min(nr_pages, PAGES_PER_SECTION
@ -541,7 +541,7 @@ void __remove_pages(struct zone *zone, unsigned long pfn,
unsigned long nr_pages, struct vmem_altmap *altmap)
{
unsigned long map_offset = 0;
int i, start_sec, end_sec;
unsigned long nr, start_sec, end_sec;
map_offset = vmem_altmap_offset(altmap);
@ -552,7 +552,7 @@ void __remove_pages(struct zone *zone, unsigned long pfn,
start_sec = pfn_to_section_nr(pfn);
end_sec = pfn_to_section_nr(pfn + nr_pages - 1);
for (i = start_sec; i <= end_sec; i++) {
for (nr = start_sec; nr <= end_sec; nr++) {
unsigned long pfns;
cond_resched();

8
mm/sparse.c
View File

@ -229,21 +229,21 @@ void subsection_mask_set(unsigned long *map, unsigned long pfn,
void __init subsection_map_init(unsigned long pfn, unsigned long nr_pages)
{
int end_sec = pfn_to_section_nr(pfn + nr_pages - 1);
int i, start_sec = pfn_to_section_nr(pfn);
unsigned long nr, start_sec = pfn_to_section_nr(pfn);
if (!nr_pages)
return;
for (i = start_sec; i <= end_sec; i++) {
for (nr = start_sec; nr <= end_sec; nr++) {
struct mem_section *ms;
unsigned long pfns;
pfns = min(nr_pages, PAGES_PER_SECTION
- (pfn & ~PAGE_SECTION_MASK));
ms = __nr_to_section(i);
ms = __nr_to_section(nr);
subsection_mask_set(ms->usage->subsection_map, pfn, pfns);
pr_debug("%s: sec: %d pfns: %ld set(%d, %d)\n", __func__, i,
pr_debug("%s: sec: %lu pfns: %lu set(%d, %d)\n", __func__, nr,
pfns, subsection_map_index(pfn),
subsection_map_index(pfn + pfns - 1));