diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2025-11-06 20:14:50 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-11-20 13:43:57 -0800 |
| commit | 20605eb5bbea8184d2bb356d7e1419c8ec359efb (patch) | |
| tree | 85967083920c3d436bc29b7ad205ebd00f7ddee8 /mm/memory_hotplug.c | |
| parent | c537f0dd30344434b6e7585768d3fa38190d2d0c (diff) | |
memory_hotplug: optimise try_offline_memory_block()
Extract the zone number directly from the page instead of using the page's
zone number to look up the zone and asking the zone what its number is.
Link: https://lkml.kernel.org/r/20251106201452.2292631-3-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Oscar Salvador <osalvador@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/memory_hotplug.c')
| -rw-r--r-- | mm/memory_hotplug.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 94a8f6e8811a..63b9d500ec6c 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -2327,7 +2327,7 @@ static int try_offline_memory_block(struct memory_block *mem, void *arg) * by offlining code ... so we don't care about that. */ page = pfn_to_online_page(section_nr_to_pfn(mem->start_section_nr)); - if (page && zone_idx(page_zone(page)) == ZONE_MOVABLE) + if (page && page_zonenum(page) == ZONE_MOVABLE) online_type = MMOP_ONLINE_MOVABLE; rc = device_offline(&mem->dev); |