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mm/sparse: remove unused parameters in sparse_remove_section() 

These parameters ms and map_offset are not used in
sparse_remove_section(), so remove them.

The __remove_section() is only called by __remove_pages(), remove it.  And
put the WARN_ON_ONCE() in sparse_remove_section().

Link: https://lkml.kernel.org/r/20230607023952.2247489-1-yajun.deng@linux.dev
Signed-off-by: Yajun Deng <yajun.deng@linux.dev>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Oscar Salvador <osalvador@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Yajun Deng 2023-06-07 10:39:52 +08:00 committed by Andrew Morton
parent 061e62e818
commit bd5f79ab39
3 changed files with 10 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
include/linux/memory_hotplug.h
View File

@ -344,9 +344,8 @@ extern void remove_pfn_range_from_zone(struct zone *zone,
extern int sparse_add_section(int nid, unsigned long pfn,
unsigned long nr_pages, struct vmem_altmap *altmap,
struct dev_pagemap *pgmap);
extern void sparse_remove_section(struct mem_section *ms,
unsigned long pfn, unsigned long nr_pages,
unsigned long map_offset, struct vmem_altmap *altmap);
extern void sparse_remove_section(unsigned long pfn, unsigned long nr_pages,
struct vmem_altmap *altmap);
extern struct page *sparse_decode_mem_map(unsigned long coded_mem_map,
unsigned long pnum);
extern struct zone *zone_for_pfn_range(int online_type, int nid,

18
mm/memory_hotplug.c
View File

@ -492,18 +492,6 @@ void __ref remove_pfn_range_from_zone(struct zone *zone,
set_zone_contiguous(zone);
}
static void __remove_section(unsigned long pfn, unsigned long nr_pages,
unsigned long map_offset,
struct vmem_altmap *altmap)
{
struct mem_section *ms = __pfn_to_section(pfn);
if (WARN_ON_ONCE(!valid_section(ms)))
return;
sparse_remove_section(ms, pfn, nr_pages, map_offset, altmap);
}
/**
* __remove_pages() - remove sections of pages
* @pfn: starting pageframe (must be aligned to start of a section)
@ -520,9 +508,6 @@ void __remove_pages(unsigned long pfn, unsigned long nr_pages,
{
const unsigned long end_pfn = pfn + nr_pages;
unsigned long cur_nr_pages;
unsigned long map_offset = 0;
map_offset = vmem_altmap_offset(altmap);
if (check_pfn_span(pfn, nr_pages)) {
WARN(1, "Misaligned %s start: %#lx end: %#lx\n", __func__, pfn, pfn + nr_pages - 1);
@ -534,8 +519,7 @@ void __remove_pages(unsigned long pfn, unsigned long nr_pages,
/* Select all remaining pages up to the next section boundary */
cur_nr_pages = min(end_pfn - pfn,
SECTION_ALIGN_UP(pfn + 1) - pfn);
__remove_section(pfn, cur_nr_pages, map_offset, altmap);
map_offset = 0;
sparse_remove_section(pfn, cur_nr_pages, altmap);
}
}

10
mm/sparse.c
View File

@ -922,10 +922,14 @@ int __meminit sparse_add_section(int nid, unsigned long start_pfn,
return 0;
}
void sparse_remove_section(struct mem_section *ms, unsigned long pfn,
unsigned long nr_pages, unsigned long map_offset,
struct vmem_altmap *altmap)
void sparse_remove_section(unsigned long pfn, unsigned long nr_pages,
struct vmem_altmap *altmap)
{
struct mem_section *ms = __pfn_to_section(pfn);
if (WARN_ON_ONCE(!valid_section(ms)))
return;
section_deactivate(pfn, nr_pages, altmap);
}
#endif /* CONFIG_MEMORY_HOTPLUG */