diff options
Diffstat (limited to '')
| -rw-r--r-- | mm/memory_hotplug.c | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index a2b6ca24c50f..4344e85213f2 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -516,25 +516,20 @@ static void __remove_section(unsigned long pfn, unsigned long nr_pages, void __remove_pages(unsigned long pfn, unsigned long nr_pages, struct vmem_altmap *altmap) { + const unsigned long end_pfn = pfn + nr_pages; + unsigned long cur_nr_pages; unsigned long map_offset = 0; - unsigned long nr, start_sec, end_sec; map_offset = vmem_altmap_offset(altmap); if (check_pfn_span(pfn, nr_pages, "remove")) return; - start_sec = pfn_to_section_nr(pfn); - end_sec = pfn_to_section_nr(pfn + nr_pages - 1); - for (nr = start_sec; nr <= end_sec; nr++) { - unsigned long pfns; - + for (; pfn < end_pfn; pfn += cur_nr_pages) { cond_resched(); - pfns = min(nr_pages, PAGES_PER_SECTION - - (pfn & ~PAGE_SECTION_MASK)); - __remove_section(pfn, pfns, map_offset, altmap); - pfn += pfns; - nr_pages -= pfns; + /* Select all remaining pages up to the next section boundary */ + cur_nr_pages = min(end_pfn - pfn, -(pfn | PAGE_SECTION_MASK)); + __remove_section(pfn, cur_nr_pages, map_offset, altmap); map_offset = 0; } } |