tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
1
fork

Configure Feed

Select the types of activity you want to include in your feed.

mm/memory_hotplug: remove for_each_valid_pfn() usage

When offlining memory, we know that the memory range has no holes.
Checking for valid pfns is not required.

Link: https://lkml.kernel.org/r/20260320-sparsemem_cleanups-v2-2-096addc8800d@kernel.org
Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Wei Xu <weixugc@google.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

authored by

David Hildenbrand (Arm) and committed by
Andrew Morton 9d80de66 89e69c7d

+2 -2
+2 -2
mm/memory_hotplug.c
··· 1745 1745 { 1746 1746 unsigned long pfn; 1747 1747 1748 - for_each_valid_pfn(pfn, start, end) { 1748 + for (pfn = start; pfn < end; pfn++) { 1749 1749 unsigned long nr_pages; 1750 1750 struct page *page; 1751 1751 struct folio *folio; ··· 1795 1795 static DEFINE_RATELIMIT_STATE(migrate_rs, DEFAULT_RATELIMIT_INTERVAL, 1796 1796 DEFAULT_RATELIMIT_BURST); 1797 1797 1798 - for_each_valid_pfn(pfn, start_pfn, end_pfn) { 1798 + for (pfn = start_pfn; pfn < end_pfn; pfn++) { 1799 1799 struct page *page; 1800 1800 1801 1801 page = pfn_to_page(pfn);