diff options
| author | Zi Yan <ziy@nvidia.com> | 2025-06-16 22:11:13 -0400 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-07-13 16:38:18 -0700 |
| commit | 7a3324eb66f616408fdaaff8a1289c0a9b333748 (patch) | |
| tree | 7eddad984142b66f2c02c9b4641c2e9a5647fc67 | |
| parent | b1df9c5713dc41229667aa44eaea2399e8de9470 (diff) | |
mm/page_isolation: remove migratetype from undo_isolate_page_range()
Since migratetype is no longer overwritten during pageblock isolation,
undoing pageblock isolation no longer needs which migratetype to restore.
Link: https://lkml.kernel.org/r/20250617021115.2331563-6-ziy@nvidia.com
Signed-off-by: Zi Yan <ziy@nvidia.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kirill A. Shuemov <kirill.shutemov@linux.intel.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Richard Chang <richardycc@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | include/linux/page-isolation.h | 3 | ||||
| -rw-r--r-- | mm/memory_hotplug.c | 4 | ||||
| -rw-r--r-- | mm/page_alloc.c | 2 | ||||
| -rw-r--r-- | mm/page_isolation.c | 9 |
4 files changed, 7 insertions, 11 deletions
diff --git a/include/linux/page-isolation.h b/include/linux/page-isolation.h index 7241a6719618..7a681a49e73c 100644 --- a/include/linux/page-isolation.h +++ b/include/linux/page-isolation.h @@ -51,8 +51,7 @@ bool pageblock_unisolate_and_move_free_pages(struct zone *zone, struct page *pag int start_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn, int migratetype, int flags); -void undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn, - int migratetype); +void undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn); int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn, int isol_flags); diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index a3c2b0784070..6e3380ad1bf5 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1222,7 +1222,7 @@ int online_pages(unsigned long pfn, unsigned long nr_pages, build_all_zonelists(NULL); /* Basic onlining is complete, allow allocation of onlined pages. */ - undo_isolate_page_range(pfn, pfn + nr_pages, MIGRATE_MOVABLE); + undo_isolate_page_range(pfn, pfn + nr_pages); /* * Freshly onlined pages aren't shuffled (e.g., all pages are placed to @@ -2086,7 +2086,7 @@ int offline_pages(unsigned long start_pfn, unsigned long nr_pages, failed_removal_isolated: /* pushback to free area */ - undo_isolate_page_range(start_pfn, end_pfn, MIGRATE_MOVABLE); + undo_isolate_page_range(start_pfn, end_pfn); memory_notify(MEM_CANCEL_OFFLINE, &mem_arg); if (node_arg.nid != NUMA_NO_NODE) node_notify(NODE_CANCEL_REMOVING_LAST_MEMORY, &node_arg); diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 938b01bed1f6..8d4b3f12b9a6 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -6984,7 +6984,7 @@ int alloc_contig_range_noprof(unsigned long start, unsigned long end, start, end, outer_start, outer_end); } done: - undo_isolate_page_range(start, end, migratetype); + undo_isolate_page_range(start, end); return ret; } EXPORT_SYMBOL(alloc_contig_range_noprof); diff --git a/mm/page_isolation.c b/mm/page_isolation.c index 08f627a5032f..1edfef408faf 100644 --- a/mm/page_isolation.c +++ b/mm/page_isolation.c @@ -515,7 +515,7 @@ int start_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn, page = __first_valid_page(pfn, pageblock_nr_pages); if (page && set_migratetype_isolate(page, migratetype, flags, start_pfn, end_pfn)) { - undo_isolate_page_range(isolate_start, pfn, migratetype); + undo_isolate_page_range(isolate_start, pfn); unset_migratetype_isolate( pfn_to_page(isolate_end - pageblock_nr_pages)); return -EBUSY; @@ -528,13 +528,10 @@ int start_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn, * undo_isolate_page_range - undo effects of start_isolate_page_range() * @start_pfn: The first PFN of the isolated range * @end_pfn: The last PFN of the isolated range - * @migratetype: New migrate type to set on the range * - * This finds every MIGRATE_ISOLATE page block in the given range - * and switches it to @migratetype. + * This finds and unsets every MIGRATE_ISOLATE page block in the given range */ -void undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn, - int migratetype) +void undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn) { unsigned long pfn; struct page *page; |